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Favicon for inception

Inception: Mercury

inception/mercury

Mercury is the first diffusion large language model (dLLM). Applying a breakthrough discrete diffusion approach, the model runs 5-10x faster than even speed optimized models like GPT-4.1 Nano and Claude 3.5 Haiku while matching their performance. Mercury's speed enables developers to provide responsive user experiences, including with voice agents, search interfaces, and chatbots. Read more in the [blog post] (https://www.inceptionlabs.ai/blog/introducing-mercuryOpens in new tab) here.

Modalities
Context
128K
Released
Jun 26, 2025
Knowledge Cutoff
Jan 2025
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Frequently asked questions

Mercury is the first diffusion large language model (dLLM). Applying a breakthrough discrete diffusion approach, the model runs 5-10x faster than even speed optimized models like GPT-4.1 Nano and Claude 3.5 Haiku while matching their performance. Mercury's speed enables developers to provide responsive user experiences, including with voice agents, search interfaces, and chatbots.

Mercury has a 128,000 token context window.

Mercury 3, Mercury Decide, Mercury 2.5 and 1 more are other text models from Inception.

Mercury was released on June 26, 2025. Its knowledge cutoff is January 31, 2025.