Ryan Ormrod
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Executive summary

OpenAI's DevDay 2026 delivers GPT-6 Astra, Sol and proactive dots agents

Illustration of the briefing: OpenAI's DevDay 2026 delivers GPT-6 Astra, Sol and proactive dots agents
Generated by AI · 29 September 2026 OpenAI's DevDay 2026 delivers GPT-6 Astra, Sol and proactive dots agents

OpenAI used its DevDay 2026 (opens in a new tab) event to announce more than 20 updates, headlined by GPT-6 Astra (opens in a new tab) and GPT-6.1 Sol (opens in a new tab), a near-Astra tier at a fifth of the input cost, plus dots (opens in a new tab), its proactive assistant agents for complex projects and everyday tasks.

Elsewhere, Oura (opens in a new tab) pulled its $15bn US listing days after announcing it, while Figma (opens in a new tab) expanded its London office. Stripe (opens in a new tab) launched Link tools to help personal agents shop, Postman (opens in a new tab) shipped a Codex plugin, and Twilio (opens in a new tab) reported that 86% of brands think their AI works but only 51% of customers agree.