YC-backed Overshoot launches inference optimization, claims $5M saved for AI teams

ycombinator · x · 2026-10-16

• Overshoot, a YC-backed startup, launched with a simple pitch: cut AI teams' GPU bills in half with zero quality loss, or you don't pay.
• The team has forward-deployed into AI teams for months, cumulatively saving over $5M on inference stacks.
• Its engineering blog documents concrete wins: a custom FlashAttention kernel for Gemma 4 on RTX PRO 6000 (1,770ms→464ms), decoding step time on a 4B model cut from 6.4ms to 4.2ms on B200, a multimodal processor rewrite delivering 5x lower latency (428ms→81ms), and reduced caching serving 2.6x more requests per GPU.
• Positioning: vLLM/SGLang ship what works on average; Overshoot profiles your deployment against hardware limits and closes the gap down to the kernel level.

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