# llm-anthropic 0.25.1

> Source: <https://simonwillison.net/2026/May/28/llm-anthropic/#atom-everything>
> Published: 2026-05-28 23:54:56+00:00

**Release:** [llm-anthropic 0.25.1](https://github.com/simonw/llm-anthropic/releases/tag/0.25.1)

- New model:
[Claude Opus 4.8](`claude-opus-4.8`

).- New
`-o fast 1`

option for[fast mode], for organizations with that feature enabled on their account.- Default max_tokens for each model now defaults to that model's maximum output rather than 8,192.
[#72]

See also my [notes on Opus 4.8](https://simonwillison.net/2026/May/28/claude-opus-4-8/) - I used this new release of `llm-anthropic`

to generate the pelicans.