Bullet

What is Bullet?

Bullet is a coding agent built for speed. We got tired of burning hours waiting on agent runs. The models were fine, but the loops around them were slow. Bullet auto-picks the right model/reasoning level per prompt, parallelizes searches/reads/commands, and uses targeted code search instead of embedding your whole repo. Works with your Claude Code or Codex subscription, API keys, or an on-device model. 95.8% on SWE-bench Verified (top 3), 119s/task. Built by Yale CS grads, ex-AppLovin/Citadel.