Codeflash

Python performance optimizer that uses LLMs to generate, test and benchmark optimizations and opens pull requests.

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Setup steps are in the repository. Website · Repository

About

Codeflash is a general-purpose optimizer for Python code that uses LLMs to generate optimization ideas, tests them for correctness and benchmarks them for speed. It then opens merge-ready pull requests containing the best optimization it finds. It runs as a CLI with commands such as codeflash --all and codeflash optimize, and can be added as a GitHub Action with a GitHub app. The site describes a codeflash-agent that runs continuously, with engineers reviewing each change before it ships.

Use cases: coding, refactoring, version-control

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Fact sheet

Jobs: codingREADME
Autonomy: Autonomous: runs tasks end to end and reports backcodeflash.ai
Where you use it: TerminalREADME
Interfaces: github-appREADME
Open source: NoREADME

Facts extracted by Claude Haiku 5.5 from the linked sources on Oct 24, 2026. Wrong fact? Tell us.

Signals

Stars: 248
Forks: 26
Open issues: 18
Last commit: May 30, 2026 (5 months ago)
Last release: May 30, 2026 (5 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License: Other
Repository: github.com/codeflash-ai/codeflash
Website: www.codeflash.ai
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: README Website github-graphql

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Cite this page

Codeflash. Agent Mart. https://agentmart.dev/agents/codeflash (last updated 2026-10-24)