Mercury 3 benchmarks: beats GPT-6 Luna and Haiku 5.5 at 1,068 tok/s

StefanoErmon · x · 2026-10-20

Mercury 3 already powers agentic apps in code review, tutoring and browser use, with early adopters including TinyFish, Lorikeet and Bauplan. Inception says it scales text diffusion: 40x larger than Mercury 1 yet just as fast. The shared benchmark chart shows 1,068 tok/s output vs 130/240 for rivals, with wins on SWE-Bench Atlas (51.08), IFBench (76.84), GPQA Diamond (89.23) and BrowseComp+ (55.18).

Related event: Inception Launches Mercury 3: Diffusion LLM Hits 1000+ Tokens/s(8 posts)→

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