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gbrain vs prompt-optimizer
gbrain and prompt-optimizer share 5 technologies: Vite, Express, MCP, Anthropic, and OpenAI. Both are written in TypeScript.
What they share and what sets them apart
garrytan
gbrain
Garry's Opinionated OpenClaw/Hermes Agent Brain
TypeScript31.4kRead on November 2, 2026, at commit ca1281aWhat is gbrain built with?linshenkx
prompt-optimizer
An AI prompt optimizer for writing better prompts and getting better AI results.
TypeScript40.1kRead on October 31, 2026, at commit 5951bd4What is prompt-optimizer built with?In common
Only in gbrain
Only in prompt-optimizer
Side by side
gbrainprompt-optimizer
SizeLines written by people and agents, without generated ones; code files, without tests.
gbrain1,909,212 lines written3,295 code files
prompt-optimizer309,080 lines written784 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
gbrain7.6% of its commits signed by AIWith Claude Code, Codex, Devin, and Warp
prompt-optimizer0.8% of its commits signed by AIWith Claude Code and Jules
ActivityFrom GitHub and its history, on the day SeeRepo read it.
gbrainLast push November 2, 20269,177 commits31,432 stars
prompt-optimizerLast push October 30, 2026990 commits40,112 stars
TestsThe files that test the code, and the share of code files a test imports.
gbrain6,325 test files71.5% of its code files have a test that imports them
prompt-optimizer476 test files47.3% of its code files have a test that imports them
Frequently asked questions
Which is bigger, gbrain or prompt-optimizer?
gbrain, with 1,909,212 lines written in 3,295 code files; prompt-optimizer has 309,080 in 784.
The proof: garrytan/gbrain's code at commit ca1281a
Which has more GitHub stars, gbrain or prompt-optimizer?
prompt-optimizer, with 40,112 stars; gbrain has 31,432.
The proof: linshenkx/prompt-optimizer on GitHub
Which has more tests, gbrain or prompt-optimizer?
gbrain, with 6,325 test files; prompt-optimizer has 476.
The proof: garrytan/gbrain's code at commit ca1281a
Which was updated more recently, gbrain or prompt-optimizer?
gbrain: its last push was on November 2, 2026, and prompt-optimizer's on October 30, 2026.
The proof: garrytan/gbrain's commits on GitHub
Which has more commits signed by AI, gbrain or prompt-optimizer?
gbrain: an AI signed 7.6% of its commits, with Claude Code, Codex, Devin, and Warp; in prompt-optimizer, 0.8%.
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