# Boris Cherny: We Cut 80% of Claude Code’s Prompt

**Published:** October 14, 2026
**Author:** Y Combinator
**Source:** YouTube — Y Combinator AI
**Language:** en-US
**HTML:** https://aiqazaqstan.com/en/articles/boris-cherny-we-cut-80-of-claude-code-s-prompt

[music] >> All right, Boris. We're so excited to have you here, the creator of Claude code. >> Thank you. >> [applause and cheering] >> It's great to be here. >> Fresh off the press. You guys just shipped Opus 5 yesterday. >> Yes. >> [applause and cheering] >> And it seems that…

> From the original source: **YouTube — Y Combinator AI**
> [Read full article at YouTube — Y Combinator AI](https://www.youtube.com/watch?v=qyPCVqFUyDo)

**Tags:** #Anthropic #YouTube

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