0.5

• Support for tool calling. Thanks, James Sanford. #43
• Support for reasoning options, for example llm -m openrouter/openai/gpt-5 'prove dogs exist' -o reasoning_effort medium. #45

0.4.1

• Fixed a bug with llm openrouter models. #36

0.4

See also the annotated release notes.

• LLM schema support for OpenRouter models that support structured output. #23
• llm openrouter key command displays information about your current API key. #24
• llm -m ... -o online 1 enables web search grounding against any model, powered by Exa. #25
• llm openrouter models command for listing details of the OpenRouter models, including a --json option to get JSON and a --free option to filter for just their free models. #26
• Fixed a bug where LLM_OPENROUTER_KEY was sometimes needed in place of OPENROUTER_KEY - now only OPENROUTER_KEY is supported. #16
• New option to specify custom provider routing: -o provider '{JSON here}'. #17

0.3

• Enable image attachments for models that support images. Thanks, Adam Montgomery. #12
• Provide async model access. #15
• Fix documentation to list correct LLM_OPENROUTER_KEY environment variable. #10

0.2

• Added missing httpx dependency, thanks @spinagon. #4
• Now respects OPENROUTER_KEY environment variable, thanks Chris Mungall. #7
• Fixed error that occurred if urllib3 was not installed. #9

0.1

• Initial release. Adds support for models hosted by openrouter.ai. #1