Bullet - 30-60% faster than Claude Code and Codex

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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.

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Hey everyone, my name is Alex Sima and I am the CTO of Bullet.

Like the post said, we built Bullet because Claude Code and Codex were too slow. Our YC partner said we should solve a problem we face ourselves, so we decided to go big or go home (guess we decided to go small and lightweight but ok).

We now only use Bullet internally...and personally, I can't go back to using Claude Code. If you hate slow coding agents, join the club: .

You can bring your subscriptions over, so it's free speed -- enjoy :)

ย Nice to meet you CTO!

Hi everyone, my name is and Iโ€™m the CEO of Bullet.

Existing coding agents were too slow for our development workflows, especially when iterating on a feature synchronously. Even when they finished, there would be a mistake so countless hours were wasted in this loop. After a certain amount of context accumulates in a session, both the agent and I are confused about the actual state of the feature!

Thus, we built Bullet to make coding agents faster, more focused, and easier to iterate with. It automatically chooses the right model and reasoning level, runs independent work in parallel, and uses targeted code search instead of dragging unnecessary context through every step.

We built Bullet for ourselves first, and now weโ€™re excited to share it with everyone. Would love to hear what you all think!

ย Hey Adi, CEO of Bullet

ย Really cool mission man

congrats on the launch guys! looks very impressive, excited to see where this goes!!!

ย Thanks Dawson!!! We learn from the greats ๐Ÿ™‚โ€โ†•๏ธ

ย thanks Dawson, appreciate it man!

Congrats on the launch! Waiting on coding agents is easily one of the most annoying parts right now, so cutting down iteration time is a big win.

ย Thanks Henry!

ย Appreciate it Henry!