Vendor intelligence
OpenAI
Adoption position
04
of 63 active vendors
Law firms
5
with published evidence
Evidence records
5
tracked public moves
Recent signal
5
Rising · last 6 months
Panorama read
OpenAI shows rising visible market activity and established adoption evidence across 5 firms. The strongest tracked signal is internal build, with activity distributed across its observed firm base.
Analysis reflects published evidence tracked by TVPi, not unobserved usage, product quality, or a recommendation.
Market intelligence
Momentum and adoption pattern
Signals calculated from published moves naming this vendor.
Adoption activity by quarter
Observed move mix
- Internal Build40%
- Product Adoption40%
- Partnership20%
Adoption breadth
80%
Evidence beyond the most active adopting firm. A higher share indicates broader observed adoption.
Recent momentum
0
Previous 6 months
5
Latest 6 months
Capability intelligence
What the product is built to do
Vendor-supplied positioning is labelled separately from observed market evidence.
Adoption evidence
Law firms in the evidence
Leading firms by published record count, with the complete market record available below.
5 firms · 5 records
Skadden Arps Slate Meagher & Flom
1 move
Sullivan & Cromwell
1 move
Cooley
1 move
Ropes & Gray LLP
1 move
Gilbert + Tobin
1 move
Evidence ledger
Every published record naming OpenAI, newest first.
- PartnershipSep 25, 2026Observed
Skadden Partners with OpenAI on Suite of AI Tools for Regulatory Risk and Transactions
Skadden Arps Slate Meagher & Flom
Skadden announced a collaboration with OpenAI as part of the Astra for Law launch, developing a suite of AI-powered tools to help clients assess regulatory risk and navigate transactions and product launches. Skadden is one of several AmLaw firms confirmed as early development partners in OpenAI's legal platform.
Trade Press · Confirmed confidence
- Internal BuildSep 18, 2026Observed
Sullivan & Cromwell builds "Agreement Analyzer" with OpenAI
Sullivan & Cromwell
S&C developed a custom application on ChatGPT Enterprise that applies the firm's own negotiating playbooks and precedents to agreement review, flagging cross-provision risks and drafting proposed redlines/client advice. Built by S&C Partner John Savva with OpenAI engineers; unveiled at the OpenAI for Law Summit in New York.
Firm Press Release · Confirmed confidence
- Product AdoptionSep 17, 2026Observed
OpenAI launches Astra for Law
Cooley
OpenAI released Astra for Law, a legal-tuned GPT-6 Astra configuration with a 230M+ URL legal search index (via Free Law Project/CourtListener), a zero-data-retention trusted access program, 26 launch-partner plugins (Thomson Reuters, Intapp, Harvey, Legora, DeepJudge, iManage), and ChatGPT for Word GA. Early co-development partners include Cooley, Ropes & Gray, Sullivan & Cromwell, and Latham & Watkins.
Vendor Announcement · Confirmed confidence
- Internal BuildSep 17, 2026Observed
Ropes & Gray develops AI-powered due diligence tool with OpenAI
Ropes & Gray LLP
Ropes & Gray is developing a proprietary agentic AI tool with OpenAI that mirrors the firm's own diligence methodology to produce issue-level due-diligence reports "in hours, not weeks," aimed at compressing deal-intelligence turnaround for clients.
Firm Press Release · Confirmed confidence
- Product AdoptionSep 1, 2026Observed
Gilbert + Tobin scales ChatGPT Enterprise and Codex firmwide, including parts of legal practice
Gilbert + Tobin
Australian firm Gilbert + Tobin expanded ChatGPT Enterprise beyond operations teams into marketing, business development, recruitment, finance, and parts of the legal practice (87% of enabled seats active as of June 2026), and is using Codex to automate multistep operational workflows including conflicts, AML/KYC, and audit checks under human sign-off. Legal-specific advisory work continues to run through separately approved platforms including Harvey.
Trade Press · Reported confidence
Researched intelligence
Product, deployment and trust evidence
Claim-level research keeps each statement tied to its source and date.
About OpenAI
OpenAI is the developer of the GPT model family and ChatGPT, providing frontier AI models, ChatGPT Enterprise, and Codex for enterprise AI development. Increasingly partnering directly with major law firms to build proprietary legal AI platforms.
Independent claim research has not yet been completed for this vendor.
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