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

**Published:** October 21, 2026
**Author:** Manuel Uth
**Source:** The Decoder
**Language:** en-US
**HTML:** https://aiqazaqstan.com/en/articles/inception-s-mercury-3-diffusion-model-claims-to-beat-gpt-6-luna-and-clau

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…

> From the original source: **The Decoder**
> [Read full article at The Decoder](https://the-decoder.com/inceptions-mercury-3-diffusion-model-claims-to-beat-gpt-6-luna-and-claude-haiku-5-5-at-a-fraction-of-the-wait/)

**Tags:** #Anthropic

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