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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-mercury(opens in new tab)) here.

Modalities

Context

128K

Released

Jun 26, 2025

Knowledge Cutoff

Jan 2025

About Inception: Mercury

OpenRouter makes Inception: Mercury available through a unified, OpenAI-compatible API using the model ID inception/mercury.

Inception: Mercury accepts text and returns text. It has a 128,000-token context window.

It was released on June 26, 2025; its knowledge cutoff is January 31, 2025.

More models from Inception

  • Mercury 2
ActivityFAQ

Activity

Token volume and request traffic to this model over time.

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 2 is another text model from Inception.

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