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Inception's Mercury 3 diffusion model claims to beat GPT-6 Luna and Claude Haiku 5.5 at a fraction of the wait

Inception claims its Mercury 3 diffusion language model runs four to eight times faster than GPT-6 Luna and Claude Haiku 5.5 and beats both on eight of 12 benchmarks, according to the company's own announcement. Inception calls Mercury 3 the most capable diffusion language model released so far, but no independent tests of the claims have been published.

by read1 min views1 publishedOct 21, 2026

Inception says Mercury 3 is the most capable diffusion language model released so far. The company claims it runs four to eight times faster than GPT-6 Luna and Claude Haiku 5.5 and beats both in eight of 12 benchmarks. There are no independent tests yet.

The article Inception's Mercury 3 diffusion model claims to beat GPT-6 Luna and Claude Haiku 5.5 at a fraction of the wait appeared first on The Decoder.

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