Launch HN: Bullet (YC S26) – A Faster Coding Agent

Hi HN! We’re Adi and Alex, founders of Bullet, a faster coding agent. Bullet started in a senior year dorm. We were fresh out of working at AppLovin and Citadel, and naturally thought we were on a sure path to startup success. We were going to use our skills optimizing stock pricing calculation speeds and agent document context to take over the world. So, Bullet started as an AI hedge fund, a browser-use agent, synthetic financial data (oof), a mobile IDE, and a bunch of other things. We wanted to build something people wanted, but it seemed like everything we built was just terrible, useless, or both. So, we decided to do something completely different, something completely out of the blue, something that no one had ever done before. Solve a problem we actually had. Over the course of six pivots, we suffered. Throughout all of our adventures, one final boss kept getting in our way. Claude Code and his little brother Codex. We were spending hours waiting for coding agents like Claude Code and Codex, and got so frustrated to the point that I downloaded the Claude Code whip. We had spent months of time waiting for six codebases-worth of useless coding agent work. Lightbulb moment. There’s nothing more noble than destroying the institutions! Let’s take on Claude Code and Codex, we can do it! Piece of cake! And so, Bullet started off as a side project. We used the Claude Code to improve the Claude Code: 1. Model routing. Do you regret giving a task to Fable when it could have literally been done by Sonnet? 2. Targeted code + context search. We think embedding the whole repo is dumb. We also think sticking the whole context (or compressed context) in chat is dumb. So we do faster and better greps over both. 3. Aggressive context hygiene. Tool output is bounded, stale screenshots disappear, we don’t re-read files…the garbage never floods the model. 4. Efficient turns. Batch independent investigation, make one surgical edit, then perform one focused verification. Internal