OpenAI Dev Day 2026 recap: GPT-6.1 Sol, Ultrafast, Pro 500 plan and Codex updates

Matthew Berman · youtube · 2026-09-30

Matthew Berman's chapter-by-chapter recap of OpenAI Dev Day 2026 covers the Dots product and Ultrafast tier with demos, the new Pro 500 subscription plan and updated usage limits, the GPT-6.1 Sol model and its benchmarks, plus Codex updates (Security Cloud, cloud Codex, voice-controlled CLI, code review), the Decisions API, relaunched plugins, Sign in with ChatGPT with bring-your-own-tokens, and ChatGPT Space.

Related event: OpenAI Dev Day 2026 Unveils GPT-6.1 Sol, Ultrafast and More(2 posts)→

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