# llm-anthropic 0.31

> Source: <https://simonwillison.net/2026/Nov/9/llm-anthropic/>
> Published: 2026-11-09 23:58:46+00:00

**Release:** [llm-anthropic 0.31](https://github.com/simonw/llm-anthropic/releases/tag/0.31)

Anthropic [released Fable 5.2 and Mythos 5.2](https://www.anthropic.com/claude-fable-and-mythos-5-2) today. I've added them to `llm-anthropic`, so you can now run prompts through Fable 5.2 like this:

```
uv tool install llm
llm install llm-anthropic
llm keys set anthropic
# paste key here
llm -m claude-fable-5.2 "Generate an SVG of a pelican riding a bicycle"
```

I ran pelicans at all five reasoning levels - `low`, `medium`, `high`, `xhigh`, and `max`. You can [see them all here](https://tools.simonwillison.net/markdown-svg-renderer?url=https%3A%2F%2Fgist.github.com%2Fsimonw%2Fbcd1a1bf38b929b0bbbae2e38b808e97) - here's the best result I got, from `xhigh`:

`max` failed to return an image at all, running out of tokens after spending 128,000 [thinking about them](https://tools.simonwillison.net/markdown-svg-renderer?url=https%3A%2F%2Fgist.github.com%2Fsimonw%2Fbcd1a1bf38b929b0bbbae2e38b808e97#reasoning-2). That's the same bug that I saw with [Opus 5.5](https://simonwillison.net/2026/Sep/22/opus-and-sol-and-luna/#claude-opus-5-5-max-over-thinks-to-the-point-of-breaking) - but it's new for the Fable series, both [Fable 5](https://simonwillison.net/2026/Jun/9/claude-fable-5/#and-some-pelicans) and [Fable 5.1](https://simonwillison.net/2026/Sep/1/claude-fable-5-1/#max) returned max effort pelicans just fine.

Tags: [llm](https://simonwillison.net/tags/llm), [anthropic](https://simonwillison.net/tags/anthropic), [claude](https://simonwillison.net/tags/claude), [generative-ai](https://simonwillison.net/tags/generative-ai), [pelican-riding-a-bicycle](https://simonwillison.net/tags/pelican-riding-a-bicycle), [ai](https://simonwillison.net/tags/ai), [llms](https://simonwillison.net/tags/llms), [claude-mythos-fable](https://simonwillison.net/tags/claude-mythos-fable)