Legora expands legal AI workflow with OpenAI models and Codex

Legora says it is building an agentic operating system for legal work, using OpenAI models, ChatGPT and Codex to accelerate legal workflows, expand contract analysis and reduce routine drafting tasks for lawyers, according to OpenAI's Oct. 28, 2026 post on the company.

Evidence and context

The OpenAI post did not provide financial figures or product performance metrics, but it places Legora’s legal software stack in the context of broader workflow automation across research, document review, drafting and multi-step legal tasks. Those capabilities align with the company description in Y Combinator’s profile, which says Legora supports legal research, document review, drafting and complex workflows.

The announcement comes after a run of company-specific developments reported by Legora in the week before the OpenAI post. On Oct. 21, 2026, Legora said it had raised a $550 million Series E at an $8.8 billion valuation, and it said at that time that it had more than $200 million in annual recurring revenue, more than 1,000 employees across 18 offices, and use by more than 140,000 legal professionals at more than 2,400 law firms and in-house legal teams across over 80 markets. Those operating metrics were company-reported and were not independently audited.

Legora also said on Oct. 22, 2026 that Jones Day selected it as a strategic AI partner and was rolling out the platform firm-wide to 2,500 lawyers globally, followed by a separate Oct. 27, 2026 announcement that Stoel Rives was deploying Legora firm-wide. Together, those updates suggest the company is continuing to push further into enterprise legal adoption, though the OpenAI post itself did not quantify usage growth or adoption rates tied specifically to OpenAI tools.

Background materials from Legora and Y Combinator indicate the company was founded in Stockholm in 2023 under the name Leya, participated in Y Combinator's Winter 2024 batch, launched its platform in October 2024 and changed its name to Legora in February 2025. Exact dates for the launch and renaming were not verified in the supplied material.