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Tools2026-06-13 · source-backed
Willison updated his open WebRTC audio playground so you can paste a document before a session and discuss it live over voice. It runs on OpenAI's GPT-Realtime-2, the company's first realtime voice model with GPT-5-class reasoning (128K context, parallel tool calls, interruption handling). The takeaway: realtime voice plus grounding context is now a few lines of browser config. The bar to ship a voice agent that reasons over your own material just dropped to almost nothing.
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Your harness can do things its documentation never mentions. This is now demonstrated, not argued. Willison's August 30 post reverse-engineers ChatGPT Work, the tier OpenAI announced on July 9, into a concrete capability list (simonwillison.net). Model selection across Sol, Lu...
OpenAI published "Research acceleration: the view inside OpenAI" on September 6 with numbers no lab has put in public before (OpenAI). As of mid-August, the research organization uses 3.1 agent-workdays of effort for every workday of human labor. It says it reached its interna...
Promptwatch's tracking shows the share of ChatGPT search queries using site: sat at 0.3-0.5% for weeks, dipped to 0.15% on August 3-5, then jumped to 16-17% on August 8, two days after OpenAI said it was making GPT-5.6 Sol "more reliable with facts." Simon Willison Willison co...
Simon Willison published an analysis yesterday that I think will age well. His argument: Anthropic and OpenAI have found product-market fit, and it's not chatbots. It's coding agents. The numbers back him up. Anthropic's rumored Q2 2026 revenue hit $10.9B, up from $4B in Augus...
Simon Willison released 1.0a39 and 0.65.4 on September 10 after an audit with Fable 5.1, GPT-5.6 and GPT-6 Astra, alongside Sevban Dönmez and Alex Garcia. Permission checks ignored SQLite's case-insensitive table names. FTS index tables were readable without permission. Restri...
Simon Willison spent a while taking ChatGPT Work apart and published the map on August 30. Work splits into Work Cloud and Work Local, the latter being the renamed Codex desktop app, at $20/month and up since July 9. He enumerates six capabilities Work has that Chat doesn't, a...
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