# llm-anthropic 0.26

> Source: <https://simonwillison.net/2026/Aug/4/llm-anthropic/#atom-everything>
> Published: 2026-08-04 22:00:58+00:00

**Release:** [llm-anthropic 0.26](https://github.com/simonw/llm-anthropic/releases/tag/0.26)

Includes new features enabled by [LLM 0.32](https://simonwillison.net/2026/Aug/4/new-release-of-llm/):

- New models:
`claude-fable-5`

,`claude-sonnet-5`

, and`claude-opus-5`

.[#75],[#76]- Added server-side tools for
`WebSearch`

,`WebFetch`

,`CodeExecution`

, and`AnthropicMCP`

, available through LLM's`-T`

interface or Python`tools=`

. The previous`-o web_search*`

options have been removed in favor of`-T WebSearch`

.[#79]- Upgraded to
[llm>=0.32]. Reasoning, tool calls, tool results, and server-side tool results now stream as typed events. Reasoning for`llm`

CLI prompts now displays to standard error unless you pass`--hide-reasoning/-R`

.- Simplified extended thinking to
`thinking`

and`thinking_effort`

(`low`

,`medium`

,`high`

,`xhigh`

, or`max`

). Claude 5 models think by default;`-o thinking 0`

disables thinking for Sonnet 5 and Opus 5, while Fable 5 always thinks.`-R/--hide-reasoning`

now omits reasoning from responses and logs. The`thinking_budget`

,`thinking_display`

, and`thinking_adaptive`

options have been removed.[#80]

Tags: [llm](https://simonwillison.net/tags/llm), [anthropic](https://simonwillison.net/tags/anthropic), [claude](https://simonwillison.net/tags/claude), [model-context-protocol](https://simonwillison.net/tags/model-context-protocol)