banna is an open-source, provider-agnostic reasoning agent framework designed for developers and researchers working with large language models. It features a typed state substrate, verifier-guided search, and supports benchmarking with GAIA. The tool enables experimentation and deployment of autonomous agents across Anthropic, OpenAI, and Gemini models.
banna is an Autonomous agents & workflows product. It focuses on building and benchmarking autonomous reasoning agents across multiple LLM providers with a unified framework. It is built as an open-source project for AI researchers and developers. banna is open source under the MIT license. It runs on the command line, and it can be self-hosted.
Behind banna is siavashmonfared, and the product first shipped in 2026. Development happens publicly on GitHub with 45 commits in the last 90 days. Key capabilities include verifier-guided search, typed state substrate, and provider-agnostic.
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