llm 0.32a2
Mirrored from Simon Willison for archival readability. Support the source by reading on the original site.
12th May 2026
A bunch of useful stuff in this LLM alpha, but the most important detail is this one:
Most reasoning-capable OpenAI models now use the
/v1/responsesendpoint instead of/v1/chat/completions. This enables interleaved reasoning across tool calls for GPT-5 class models. #1435
This means you can now see the summarized reasoning tokens when you run prompts against an OpenAI model, displayed in a different color to standard error. Use the -R or --hide-reasoning flags if you don't want to see that.
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This is a beat by Simon Willison, posted on 12th May 2026.
projects 528 ai 2018 annotated-release-notes 49 openai 419 generative-ai 1786 llms 1752 llm 599Monthly briefing
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