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llm-anthropic 0.29 adds support for Claude Opus 5.5, letting developers call the model directly from the command line with llm -m claude-opus-5.5.

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llm-anthropic 0.29 Adds Claude Opus 5.5 Support via Command Line

What's new in llm-anthropic 0.29?

FAQ

What is llm-anthropic?

It is a plugin for Simon Willison's open-source llm project that connects Anthropic models such as Claude to a unified command-line interface.

How do I use Claude Opus 5.5 through llm?

After installing version 0.29 and setting your Anthropic API key, run: llm -m claude-opus-5.5 \"your prompt\".

Is this useful for MENA engineering teams?

Yes. It allows rapid testing of the model on sample data and comparison against other models before any broad production rollout.

Is the tool suitable for sensitive enterprise data?

The tool itself runs locally, but inference goes through Anthropic's cloud API, so privacy and compliance policies should be reviewed before using real data.

Source: Simon Willison (LLM & tools)

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