Centari vs Noetica AI: how they compare in 2026
Centari and Noetica AI both turn transaction documents into data that deal lawyers use to find precedents and benchmark negotiated terms. Centari builds that database from a firm's own deals, while Noetica, owned by Thomson Reuters since February 2026, indexes more than 3 million public and private transactions into a market dataset. Centari is stronger on how a firm checks the output. Every extracted value cites its source language, a Tasks view tracks which data points a person has verified, and access can be set down to the data point with ethical wall integration. It also states SOC 2 Type II and ISO 27001 and names OpenAI and Anthropic as its AI providers. Noetica's counterweight is the market itself. It benchmarks against other parties' deals rather than only the firm's own, and it runs on proprietary models with no third party AI provider in a single tenant architecture.
Which one fits
Choose Centari if
- You want every data point traceable and checked. Centari cites the source language behind each extracted value, opens it in one click, and its Tasks view collects every open verification step across databases and projects so an owner can assign reviewers and see what a person has checked.
- You need walls and control over who sees which deals. Centari states siloed customer data with single tenant deployments available, bring your own key encryption, access control down to the data point, and SSO with ethical wall integration.
- You want the database built to your own taxonomy by lawyers. Centari's account team of attorneys and engineers calibrates each deployment for credit agreements, limited partnership agreements and M&A closing sets, and names Fried Frank, Ropes & Gray and Gilbert + Tobin among its customers.
Choose Noetica AI if
- You want to benchmark against the market, not only your own deals. Noetica indexes more than 1.5 billion terms from over 3 million public and private transactions across more than 60 transaction types, and lets you filter comparables by opposing counsel, market cap and credit rating.
- You want no third party AI provider touching your deals. Noetica describes proprietary models with no third party providers and no shared models, in a single tenant architecture, and lets a firm run the same analytics over its own private deal library.
- You work in credit or capital markets. Noetica offers AI term ratings for assessing credit deal risk, tracks how terms move over time, and names lawyers at Latham & Watkins, Skadden, Ropes & Gray and Foley & Lardner among its users.
At a glance
All 15 axes, side by side
The same grid applied to every vendor in the index, graded from public sources. Hover a grade to see what the letter means on that axis.
AI Centrality
How much of the product is actually AI. Whether the machine learning is the mechanism the buyer is paying for or a feature layered onto conventional software, and whether the vendor is specific about which is which.
Centari sells the database its AI builds. The Deal Reasoning Engine reads a firm's credit agreements, limited partnership agreements and M&A closing sets and turns them into structured, citation-backed data points, and the platform overview describes multi-stage reasoning that resolves defined terms, traces cross-references and evaluates conditional logic in sequence rather than skimming a document as flat text. Everything else a firm buys runs on that output: precedent search, market benchmarking, Views dashboards, Projects grids and the Centari Intelligence sidebar. The MCP server and Microsoft Copilot integration let a firm's other AI tools query the same data, and they belong to the integration picture rather than to what Centari itself generates. Remove the models and there is nothing in the database to search or chart.
Noetica's proprietary AI builds the dataset itself, automatically indexing terms from public and private deal documents with no ontologies and no human tagging. Every feature a buyer uses sits on that output: term search in natural language, qualitative and quantitative benchmarking against market comparables, term trends, deal and term level risk ratings for credit deals, and analysis of a live draft uploaded for comparison against relevant benchmarks. Without the models there is no dataset to query.
Citation Accuracy and Hallucination Disclosure
Whether the vendor publishes measured accuracy on citations and assertions, grounds output to primary sources, and says plainly what its system does when it does not know. Legal has a documented public record of fabricated citations reaching filed briefs, so an untested claim of accuracy is not evidence.
Every extracted value comes back with a citation, and nothing about accuracy is measured. The platform overview says each data point traces to its source language and connects to related provisions across the deal documents, with a verification view for checking it, and the 24 August 2026 release post says the Centari Intelligence sidebar answers with citations to the source language that a partner can open in one click. The method behind the extraction is described rather than asserted: defined terms resolved, cross-references traced, conditional logic evaluated in sequence. What a buyer cannot weigh is performance. The site claims attorney-level precision and unmatched accuracy with no test set, no score and no failure mode named, so the only check on a given field is the firm's own reviewer. The citations run to the firm's own agreements rather than to primary law.
The product pages promise unmatched accuracy in benchmarking, accurate answers for knowledge management teams and unprecedented accuracy in credit risk reviews, and term search surfaces precedents that addressed similar structures. Nothing describes how a benchmark or rating ties back to the underlying deal documents, whether a user can open the source agreement behind a figure, or how often extraction is wrong. The Terms of Service say information on the service is not guaranteed to be correct, complete or up to date.
Autonomy and Oversight Model
What the system decides on its own, what a lawyer must approve, and whether the vendor documents where the review point sits. A tool that drafts under review and a tool that files without one are different products and different risks.
Centari is built around people checking what the AI extracts, and it gives a firm a way to track that checking. The 24 August 2026 release post describes the product as designed for human in the loop verification and introduces Tasks, which gathers every open verification step across Databases and Projects so an owner can assign reviewers and see which data points a person has checked. The platform overview describes a verification view beside each extraction. Projects are kept apart from the governed record: nothing in a Project writes back to a Database. What is not published is where the system itself draws a line. Nothing says when extraction stops or flags low confidence, and nothing says what unverified output must not be used for, so those rules are left to each firm.
Terms enter the dataset through automatic indexing with no ontologies and no human tagging, according to the legal solutions page, and the investment pages describe uploading a live draft for instant term analysis and automating the review of terms. Nothing describes who checks the AI's extraction of terms into the dataset, how a lawyer verifies a benchmark or rating before relying on it, or what the output may not be used for.
Operational and Outcome Evidence
Named, dated evidence that the product works in production at real firms or legal departments. Case studies with figures and identified customers count. Unattributed testimonials and launch announcements do not.
The homepage, platform overview and For Law page carry attributed endorsements from Fried Frank (Global Head of Innovation and Knowledge), Willkie (Counsel, Asset Management), Ropes & Gray (Counsel), Wilson Sonsini (Senior Manager of KM) and Gilbert + Tobin (Partner, Corporate Advisory), and from Sentinel Global's general counsel on the fund side. The blog lists a Gilbert + Tobin case study dated 30 April 2026 describing a firm wide M&A deployment, and announcements of the Fried Frank and Ropes & Gray adoptions. No figure for time saved, accuracy or outcomes is published.
Lawyers at Foley & Lardner, Latham & Watkins, Skadden and Ropes & Gray are quoted by name and title. The figures, a 95 percent reduction in transactional research time and attorney engagement on 85 percent of business days, are not attributed to any customer, dated or explained. The home page adds more than $1 trillion in corporate transactions benchmarked in 2025, marked as an estimate, and more than 3 million deals processed. The company's quarterly capital markets reports, the latest covering the fourth quarter of 2025, have been cited by Bloomberg and CNBC, and the news page lists further coverage in Reuters, Fortune and the Wall Street Journal, which shows the dataset in use but not a customer outcome.
Privilege and Confidentiality Posture
How client confidences are handled: attorney client privilege and work product treatment, segregation of one client matter from another, whether client data trains any model, and what the vendor commits to in writing rather than in marketing.
The commitments about client material are specific, and they live on a security page rather than in a contract. The security page states that customer data is siloed and never commingled, with single tenant deployments available, and that it is never used to train or fine tune the underlying models. It says data is encrypted in transit and at rest with bring your own key supported, and that access can be controlled down to the data point with SSO and ethical wall integration. The Terms of Use dated 16 September 2025 say nothing about customer content and state that they sit alongside any other agreement. That other agreement is not published, so a buyer cannot read any of these promises as a term before signing. Nothing addresses privilege or work product in the deal documents a firm uploads, how long they are held, or what OpenAI and Anthropic, named as AI providers in the Trust Center, may retain. For a product that ingests a firm's whole deal history, that last gap is the one a general counsel will raise first.
The legal solutions FAQ says Noetica never trains its models on client data and trains them only on publicly available data, and describes dedicated single-tenant deployments in which a customer's data never leaves its controlled environment, with complete data isolation. The knowledge management page promises true data isolation, no third party providers and no shared models, and says a firm's private deals stay private; firms can run the analytics over their own deal library. None of this appears in the published Terms of Service, an agreement at user level that says nothing about confidentiality, training or privilege and defers to an organization agreement that is not published, and the Privacy Policy shares information with vendors and service providers subject to the confidentiality terms of that agreement. Nothing addresses walls between matters or users inside a firm, or privilege and work product. The market dataset is described as spanning public and private transactions without saying where the private transactions come from.
UPL and Professional Responsibility Posture
Whether the vendor is clear that it supplies a tool rather than legal advice, who its audience is, and how it addresses unauthorized practice of law, competence and supervision duties, and jurisdiction limits. ABA Formal Opinion 512 is the reference point. Where the advice line is not the duty a product raises, the axis is read through the nearest professional duty it does raise: judicial conduct rules and the reviewing duty for products sold only to courts, and the duty to bill for time actually spent for products that draft time entries.
Section 4 of the Terms of Use, dated 16 September 2025, is direct about what Centari is not. It states that the company is not a law firm, attorney, staffing firm or lawyer referral service, that nothing on the service is legal advice, that no attorney-client relationship arises, and that employees who are licensed attorneys are not practicing law in that capacity. The audience is professional throughout: transactional practices, knowledge teams, in-house legal and investment funds. The other half of the question is untouched. Nothing addresses how a supervising lawyer should treat extracted terms that feed advice, negotiation positions or the External Views dashboards a firm shares with its own clients, and no jurisdiction limits are stated.
The user terms carry a clear disclaimer. The Terms of Service state that Noetica is not a law firm or attorney, cannot perform services performed by an attorney and is no substitute for one. They say information on the service is not legal advice and is not guaranteed to be correct or current, that no attorney client relationship or privilege is created, and that anyone needing legal advice should consult a licensed attorney. Nothing addresses the supervising lawyer's own duties when relying on market data in advice to a client, and no ethics guidance is named.
AI Governance and Bias Disclosure
Published governance over model behavior: who owns it inside the vendor, what is tested before release, and what is disclosed about disparate output across matter types, parties, or populations.
What Centari publishes is how a firm checks the AI's work, not how Centari builds and controls it. Calibration of each firm's taxonomy by domain experts is described on the homepage and the For Law page, an account team of attorneys and engineers runs it, and the 24 August 2026 release post describes the Tasks verification workflow. That tooling helps a firm govern its own use; it says nothing about how Centari tests and controls its models. No accountable owner inside the company is named, nothing describes what is tested before a release ships, no evaluation result is published, and nothing addresses whether extraction quality is uneven across document types, drafting styles, jurisdictions or languages.
No AI governance framework, accountable owner, testing before release or bias disclosure is published, including any statement that the parent's AI principles apply to this product.
AI Safety and Data Stewardship
Retention, deletion, access control, and what happens to prompts and documents after they are processed. Whether the vendor states its subprocessors and its incident practice, or leaves the buyer to assume.
The controls protecting the data are published; what happens to a firm's documents afterwards is not. The security page states encryption in transit and at rest with bring your own key, siloed data with single tenant options, access control down to the data point, SSO and regular penetration testing, and the Trust Center lists security controls including a record of incidents and a subprocessor list. No retention period for uploaded deal documents or for questions put to the product is published, no deletion commitment applies on termination, and no incident notification timeline is published. The Privacy Policy dated 16 September 2025 covers personal information collected through the website and services rather than the contracts a firm loads, and no customer agreement or data processing addendum is published.
The Privacy Policy covers personal information of users of the websites and services, with reasonable physical and electronic safeguards, no retention period and account deletion on request by email. It names Google Analytics and shares information with vendors and service providers under the confidentiality terms of the organization agreement, which is not published. The legal solutions FAQ describes end-to-end encryption, comprehensive access controls and dedicated single-tenant deployments that keep a customer's data inside its controlled environment, and the knowledge management page says no third party providers are used. The Terms of Service tell users to keep their own copies of content they post. No subprocessor list, retention or deletion period for deal documents, or incident practice is published.
AI Liability and Recourse
What the vendor stands behind contractually when its output is wrong. Indemnities, caps, carve outs, insurance, and whether any of it is published or only reachable through a negotiated agreement.
What Centari refuses is published in full; what it stands behind is not. The Terms of Use dated 16 September 2025 provide the service as is and disclaim warranties of accuracy, reliability and fitness (section 15). They cap total liability at the greater of fees paid in the prior six months or one hundred US dollars (section 16), and require the customer to indemnify Centari (section 17). No indemnity runs the other way, no warranty attaches to extracted output, and no insurance position appears. The Terms state that they sit alongside any other agreement. That agreement, where an enterprise buyer's real allocation of loss would sit, is not published, so the only readable position allocates the risk of a wrong extraction to the firm.
The Terms of Service provide the service and its content as is and disclaim all warranties, including that the service will be free of errors. Section 14 excludes indirect and consequential damages and caps liability at the greater of the fees the user's organization paid for that user's access in the prior 12 months or US$100. Section 12, titled Indemnity in the survival clause, is reserved, so no indemnity from Noetica appears. Disputes are governed by the organization agreement, which the terms say prevails and which is not published.
Practice Systems Integration Depth
How deeply the product reaches into the systems legal work already lives in: document management such as iManage and NetDocuments, Word and Outlook, contract lifecycle management, matter management, e-billing, and court filing systems.
The connections are named and none of them is documented. The platform overview says Centari's MCP Server makes a firm's deal intelligence available to the AI tools it already uses. The blog lists a 16 June 2026 announcement of that server and a Microsoft Copilot integration in one click, and the security page names SSO and ethical wall integration. There is no integrations page, no developer documentation and no API reference, and the June announcement does not open a readable page. Nothing states how deal documents get from a document management system such as iManage or NetDocuments into Centari, which is the step a firm has to plan and staff, or what the Copilot integration exposes to a user's assistant. Projects grids are described as exportable.
The legal solutions FAQ names integrations with iManage and NetDocuments, which it says can be customized and curated, as well as Aderant and E3. The knowledge management page mentions full-service deployment and native integrations into a firm's knowledge systems, and the Terms of Service describe tools that export information, including user content, to third-party services. Nothing describes what moves through any of these connections, in which direction, or what a firm must configure.
Deployment Model and Data Residency
Where the software runs and where the data sits. Multi tenant cloud, single tenant, private deployment, on premises, and whether region of residence is a published option or an enterprise conversation.
The tenancy model is stated and the geography is not. The security page says customer data is siloed and never commingled, that single tenant deployments are available, that bring your own key encryption is supported, and that regional hosting and processing are available for customers around the world. No region is named, nothing says which arrangement or tier carries single tenancy, and nothing separates where the database sits from where OpenAI and Anthropic process the text of a firm's agreements. A firm with a UK or EU residency requirement would have to establish all of that in a sales conversation.
The legal solutions FAQ describes dedicated single-tenant deployments that keep a customer's data within its controlled environment, the knowledge management page describes a single tenant architecture, and the Thomson Reuters acquisition announcement of February 2026 describes secure deployments with a single tenant. The Privacy Policy says the services are hosted in the United States and that data may also be transferred to other countries for storage and processing. No hosting provider, region choice or residency option is published, and processing is not distinguished from storage.
Security Certifications and Trust Center
Independent attestation a buyer can pull without a sales call: SOC 2, ISO 27001, penetration test summaries, a trust center with current reports and named scope rather than a badge image.
Certification claims on Centari's homepage and security page cover SOC 2 Type II and ISO 27001, with regular third party penetration testing and a linked Trust Center hosted by Sprinto. Only part of the Trust Center could be read. The part that could be read shows a compliance section with two entries marked compliant, a list of controls and a subprocessor list. It names no auditor, report period or scope, and no route to obtain the reports, so the certifications stand as the vendor's statement until a buyer sees the reports.
SOC 2 Type II compliance is stated in the legal solutions FAQ, alongside end-to-end encryption and access controls, and the knowledge management page describes a highly secure platform with complete security assurance. No auditor, scope, report date or way to obtain the report is published, and there is no trust center.
Model Supply Chain Disclosure
Which models sit underneath, whose they are, where they run, and whether the vendor commits to telling customers when that changes. A legal buyer inherits every dependency it cannot see.
The providers are named; the models are not. Centari's Trust Center carries a subprocessor list naming OpenAI and Anthropic as AI providers and Google as a cloud provider. Only part of that list could be read, so it may name others. The marketing pages refer to 'our underlying AI models' and to a patent pending Deal Reasoning Engine without identifying either: no model, no version, and nothing about where the AI providers run. No commitment to tell customers when the models behind their extractions change is published on the security page, the platform overview or the Trust Center, which matters here because a firm's benchmarks are built on extractions made by whatever model was running at the time.
The company describes its AI as proprietary and purpose-built, developed by a team that pairs transactional experience with machine learning work. The knowledge management page states there are no third party providers and no shared models, within a single tenant architecture, and the legal solutions FAQ says the models are trained only on publicly available data. The models themselves are not described or named, and no commitment to notify customers of model changes is published.
Commercial Transparency
Whether a buyer can learn what this costs without entering a sales process: published rates, the unit being charged, what sits behind an enterprise tier, and what implementation adds.
Nothing about price is published: no pricing page, tier name, unit of charge, trial or figure. Every route offered is a demo request. Section 13 of the Terms of Use reserves the right to charge fees for the services without stating what they are.
No price, tier or unit of charge is published; every route leads to a demo request.
Firm and Practice Coverage
Who the product is actually built for. AmLaw, midlaw, small firm and solo, in house departments, government and courts, and which practice areas are supported rather than merely claimed.
Who the product is built for is set out clearly; where it stops is not. The For Law page addresses transactional practices and names partners, knowledge management, associates and business development as its users, and the For Finance page addresses investment funds across legal, investor relations, finance and compliance. Document types are named rather than implied: credit agreements, limited partnership agreements and M&A closing sets, with the work described as high stakes M&A, fund formation and financings. The demo form offers law firm, in-house legal, financial services and government. Nothing states what falls outside, such as litigation material, agreements in other languages, or deal types for which the firm's taxonomy has not been calibrated, and calibration is how every deployment starts.
Noetica sells to transactional attorneys, law firm knowledge management and innovation teams, and credit and investment professionals. The legal solutions FAQ says the platform applies to all transactional practices, with core users in capital markets, M&A and finance, and the pages cover more than 60 transaction types including bank financing, real estate, executive compensation, private credit and rescue financing, from boutique deals to billion-dollar ones and from public to private issuers. What the dataset does not cover, by jurisdiction, deal size or document type, is not stated.
The 12 legal signals, side by side
Recorded rather than graded. These are the questions a practitioner has to answer before a tool touches a client matter, and the answers are taken from public material only.
Client Data in Training
Can material a lawyer puts into this product be used to train a model?
The security page and homepage state that customer data is never used to train or fine-tune Centari's models. No published agreement carries the commitment: the Terms of Use (16 September 2025) are silent on customer content and supplement an unpublished customer agreement.
The legal solutions FAQ says Noetica never trains its models on client data and trains them only on publicly available data. No matching term appears in the published Terms of Service or Privacy Policy, which defer to an organization agreement that is not published, and the Privacy Policy allows collected information to be used to improve the services and develop new products. The knowledge management page adds that there are no shared models.
Prompt and Output Retention
How long does the product keep what a lawyer typed, and can that be set to zero?
Retention has no defined limits anywhere in Centari's terms, privacy policy, security page or Trust Center, for documents, questions or output alike. No retention period is stated for uploaded deal documents, for questions put to the Intelligence sidebar or for extracted output, and no deletion commitment applies on termination; the security page says only that a customer's data is always under its control.
Uploaded deal documents and generated results sit with the vendor under no stated time limit. No retention period, deletion commitment or customer control over how long queries, results or uploaded deal documents are kept is published.
Ethical Walls and Matter Segregation
Does retrieval respect the firm’s ethical walls, or can the model read across them?
The security page claims access control down to the data point, SSO and ethical wall integration, and siloed customer data. No published material describes which systems the wall integration reads from or how access is enforced at query time.
The legal solutions FAQ describes dedicated single-tenant deployments with complete data isolation and comprehensive access controls, which keeps customers apart. Nothing describes walls or permissions between matters, clients or users within a firm, which matters where a firm runs analytics over its own private deal library.
Third Party Request and Subpoena Notice
If someone subpoenas the vendor for a firm’s data, does the firm hear about it first?
The Privacy Policy (16 September 2025) permits disclosure of information to comply with legal process and says nothing about notifying the customer. It covers personal information; no published term addresses requests for customer deal documents, and the Terms of Use are silent on the point.
The Privacy Policy reserves the right to access, preserve and disclose information to comply with law enforcement requests and legal process, such as a court order or subpoena. No commitment or reservation regarding notice to the customer is located in the published documents.
Primary Law Corpus Provenance
Where does the law in this product come from, and does the vendor have the right to use it?
No outside legal corpus sits behind the product, which analyzes only the deal documents a firm supplies. Centari works over the deal documents a firm loads and its benchmarks are drawn from that material; no external legal corpus is described, so provenance here is the firm's own.
The dataset is described as terms from more than 3 million public and private transactions, updated in real time. Section 1 of the Terms of Service calls it publicly available data extracted from transactional documents, and the FAQ says the models are trained only on publicly available data, while the home page says the dataset spans public and private transactions. No source is named: nothing says whether public deals come from regulatory filings, how private transactions enter the market dataset, or under what license.
Good Law Verification
Does the product tell you when the authority it just cited has been overruled?
Subsequent history is not a question for a product whose citations point to clauses in a firm's own agreements. Centari cites clauses in the firm's own agreements rather than legal authority, so the question of subsequent history does not arise for this product and nothing addresses it.
Deal term benchmarking leaves a citator nothing to review. The product benchmarks deal terms rather than citing legal authority, and nothing addresses checking authority for subsequent history.
Refusal and Uncertainty Behavior
What does the product do when the answer is not in the corpus?
Unanswerable questions and missing data points have no defined handling in the engine or the Intelligence sidebar, and no score signals how confident either is. Nothing describes what happens when the engine cannot find a data point or the Intelligence sidebar cannot answer, and no confidence or grounding score is exposed. Verification runs through Tasks, which routes finished output to a human reviewer rather than describing any point at which the system declines to answer.
Thin comparables and uncertain extractions get no described warning. Benchmarks show a market prevalence score, but no confidence indicator for the AI's extraction of a term, and no path in which the system declines when comparables are too few, is described.
Fabricated Citation Record
Does a public court record exist addressing fabricated or hallucinated legal citations in output from this product?
The AI Hallucination Cases database kept by Damien Charlotin holds no entry naming Centari or Centari, Inc. as the tool used. Centari cites a firm's own agreements and is sold for transactional work rather than for court filings.
The AI Hallucination Cases database kept by Damien Charlotin holds no entry naming Noetica or Noetica AI as the tool used.
Bar Guidance Alignment
Has the vendor engaged in public with the ethics opinions its buyers are bound by?
Professional guidance on AI use, from the ABA or any state bar, is not something the product maps itself to anywhere in its materials. Section 4 of the Terms states that Centari is not a law firm and gives no legal advice, but no material engages with ABA Formal Opinion 512, a state bar opinion or any other named ethics guidance on the use of AI.
The Terms of Service state that Noetica is not a law firm, that information on the service is not legal advice, that no attorney client relationship or privilege is created, and that users needing legal advice should consult a licensed attorney. No bar or ethics opinion is named.
Billing and Fee Posture
Does the vendor address what happens to the bill when the work takes an hour instead of six?
The For Law page says associates find on-point precedent in seconds to bring to drafts and redlines, and the platform page contrasts the engine with manual work, which is work billed to clients on live deals. Much of the product also serves pitch and knowledge work that bills no client. No material addresses fee or disclosure treatment.
The knowledge management page claims the product cuts transactional research time by more than 95 percent on average, allowing the time to be reallocated to billable hours and other projects. Nothing addresses how research done with the product is billed or disclosed to the firm's clients.
Outside Counsel Guideline Readiness
Can a firm get this vendor through a client’s AI clause without a bespoke negotiation?
Centari's Trust Center carries a subprocessor list; among its entries are OpenAI and Anthropic as AI providers and Google as a cloud provider. No material written for a firm to pass to its own clients, such as an AI use summary or a response to outside counsel guidelines, is published.
No subprocessor or model provider list is published on the product pages, in the Terms of Service or in the Privacy Policy, which names only Google Analytics among outside services. What a firm can forward to a client is the statement of single tenancy with no third party providers and no shared models, the FAQ's statement that client data does not train the models, and a stated SOC 2 Type II compliance with no report available.
Court Disclosure Support
If a judge’s standing order requires an AI disclosure, can the product produce one?
Every extracted data point cites its source language, and Tasks records which data has been verified by a human reviewer. The product serves transactional work and nothing addresses court disclosure or records which model produced an output.
Benchmarks and analyses carry no trace of AI involvement for later disclosure. No record of AI involvement in a benchmark or analysis, export of that record or disclosure guidance is described.
The questions both sides leave open
Derived from the records above rather than written, so it cannot favor either vendor. Take these into both conversations and ask each side the same question.
- Commercial Transparency
- Prompt and Output Retention
- Primary Law Corpus Provenance
- Good Law Verification
- Refusal and Uncertainty Behavior
Product updates
The latest logged changes from each vendor, newest first, each linked to its source.
Centari
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Product / capability
Centari released Agentic Review in preview.
Source
In summary
Centari
Centari, from Centari, Inc. of New York, is a deal intelligence platform for transactional law firms and investment funds. Its Deal Reasoning Engine turns credit agreements, limited partnership agreements and M&A closing sets into a citation backed database built to each firm's own taxonomy. Firms use it to find precedent clauses, benchmark terms and prepare pitches. According to the AI Legal Index, every extracted value traces back to its source language, and a Tasks view shows which data points a person has checked. It states SOC 2 Type II and ISO 27001, names OpenAI and Anthropic as AI providers, and counts Fried Frank and Ropes & Gray among its customers.
Noetica AI
Noetica AI, founded in New York in 2022 and acquired by Thomson Reuters in February 2026, is a market intelligence platform for deal professionals. It indexes more than 1.5 billion terms from over 3 million public and private transactions across debt finance, capital markets, securities and M&A. Lawyers use it to benchmark their own deals against market comparables and search precedents by concept, and investment teams use AI term ratings for credit risk. According to the AI Legal Index, Noetica describes proprietary models with no third party providers. It runs in a single tenant architecture.
Questions buyers ask
Centari vs Noetica: which is better for deal term benchmarking?
Centari publishes more about how its output is verified, secured and walled. Every extracted value cites its source language, a Tasks view tracks what a person has checked, and access can be set down to the data point. The two answer different questions. Centari benchmarks within a firm's own deal history, while Noetica benchmarks against a market dataset of millions of transactions. A firm wanting outside comparables has more of that in Noetica. From the AI Legal Index, based on each vendor's own published materials as of September 25, 2026. No vendor pays for placement.
Who owns Noetica AI?
Thomson Reuters acquired Noetica in February 2026 and has said it intends to integrate the platform into CoCounsel. Noetica was founded in New York in 2022 and still sells under its own name, and its published terms defer to an organization agreement. Centari is a venture backed Delaware corporation headquartered in New York. From the AI Legal Index, based on each vendor's own published materials as of September 25, 2026. No vendor pays for placement.
Does Centari train AI on firm deal documents?
Centari's security page and home page state that customer data is never used to train or fine tune its underlying AI models, and that customer data is siloed with single tenant deployments available. The commitment sits on those pages, and its terms defer to a signed customer agreement. Noetica's legal solutions FAQ says its models are trained only on publicly available data and never on client data, and its product page says it uses no shared models; neither statement appears in its published terms. From the AI Legal Index, based on each vendor's own published materials as of September 25, 2026. No vendor pays for placement.
Which AI models do Centari and Noetica use?
Centari's trust center names OpenAI and Anthropic as AI providers and Google as a cloud provider, without naming models or versions. Noetica describes its AI as proprietary and purpose built, with no third party providers and no shared models. Neither commits to telling customers when the models behind their data change. From the AI Legal Index, based on each vendor's own published materials as of September 25, 2026. No vendor pays for placement.
Neither vendor paid for inclusion, placement or a grade, and neither reviewed this page before it published. Everything on it comes from public material on the dates shown. How the index grades.
Three points stand out. Both vendors keep their customer agreement unpublished. Their published terms defer to an enterprise agreement, so this page cannot state what either stands behind for a wrong extraction beyond a disclaimer and a cap. Noetica's market dataset includes private transactions and does not say where they come from. Centari's commitment not to train on customer data sits on its security page, not in a published term. Neither vendor reviewed this page.