Product moves · This week (launched September 17)
From the Sep 18, 2026 daily brief
It connects GPT-6 Astra to a US legal research index covering more than 230M URLs, plus legal-writing instructions and privacy controls. Selected law firms get it first, with an API coming soon; Harvey and Legora can build products on it while also competing with it. On 200 private legal-research questions from Vals AI, an AI evaluation platform, OpenAI's own run scored the legal version at 54.0% and the same model with only web search at 38.7% (OpenAI, 2026-09-17). ⚠️ This is OpenAI's self-report, comparing its own product with itself, and we have no second source. Our observation: it's the same kind of effect as item 1 of Model watch; give one model a different retrieval and instruction setup and its performance shifts a notch. Our inference: for any team whose product is "model plus domain retrieval plus instructions," this is the same risk. The model maker can build that layer too, and holding your ground depends on what it doesn't have, such as workflow integration and existing customer relationships.
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