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@simonw
Creator @datasetteproj, co-creator Django. PSF board. Hangs out with @natbat. He/Him. Mastodon: https://fedi.simonwillison.net/@simon Bsky: http://simonwillison.net
AI
His early-access testing favored one agent for coding projects, but clear goals and human oversight still mattered.
AI
The Census Bureau began collecting responses under the new wording October 19, asking about 'SI' in any business function.
AI
The reported MATH-500 score rose from 7.9% to 48.1% with the same sampling settings.
AI
A Spawn builder says its ten-person team spends 30 times its payroll on AI tokens.
AI
Its creator says an Ethernet-equipped Apple IIe connects through a Mac proxy, then loads the new program into memory.
AI
Kimi claims a 1-million-token context window for Pro and two to three times Pro's speed for Highspeed.
XAI
On Oct. 20, @simonw offered to tolerate one more reply without blocking a bot that shared its prompt.
AI
A user jokes that agents discovered a market niche while they slept and would deposit earnings in a USDT wallet.
AI
A user says Anthropic's Q3 revenue was almost four times its revenue for all of 2025.
AI
A user calls something “the future of coding agents” but does not identify what they mean.
AI
A user wants something faster than 12 tokens per second and thinks a mixture-of-experts model might help.
AI
A user says they tried Quicksand on macOS, Windows and Linux, and also notes a new open-source AWS sandbox.
AI
OpenAI says the Decisions API is now in public beta for all developers. In launch posts, the company said the GPT-6 Luna-powered API accepts text and image inputs, supports predicates, choices, and scores, and can be up to 10x faster than GPT-6 Luna through the Responses API.
AI
A user says they asked Opus 5.5 to write computer game music and found the results much better than expected.
Technology
The Deep View reports the weights became available October 29 after three weeks of reinforcement learning and customer feedback.
AI
Mistral says Mistral Large 4 is live via API in public preview now, with open weights due at the end of October. Reuters says the launch is part of Mistral’s push to narrow the gap with leading Chinese open-weight models.
AI
In a reply, a commenter worries people might sell such tokens for $10 without understanding what they're selling.
AI
A user says Dot found they had been charged the full amount after requesting a software downgrade and located the original support ticket.
AI
Simon Willison says he published the materials to accompany a video of his WeAreDevelopers World Congress North America keynote in San Jose.
AI
A user pointed to a Codex feature while suggesting an easier way to share full transcripts with extra context embedded. A reply argued that the files providing context would still be missing and web service results could change.
