28th September 2026
In addition to Claude Sonnet 5.5, this release adds the ability to run llm anthropic refresh to refresh the list of Anthropic models directly from their API - which means I don't need to push a new release just to add support for a newly released model.
I also added an llm anthropic count command which can use their free token counting API to return a count of tokens that will be used by any prompt, before you send that prompt.
Recent articles #
- [We're going to need default hard budget caps on pretty much everything](https://simonwillison.net/2026/Oct/3/default-hard-budget-caps/) - 3rd October 2026
- [OpenAI DevDay 2026 live blog](https://simonwillison.net/2026/Sep/29/openai-devday-2026-live-blog/) - 29th September 2026
- [2026 in LLMs (so far)](https://simonwillison.net/2026/Sep/27/2026-in-llms-so-far/) - 27th September 2026
source & further reading
simonwillison.net — original article
Quoting Victoria Kim
llm-openai-decisions 0.1a0
llm-mistral 0.16