Mercury 2.5 is the fastest reasoning LLM, and the latest diffusion LLM (dLLM) from Inception. Instead of generating tokens sequentially, Mercury 2.5 produces and refines multiple tokens in parallel, achieving...
inception/mercury-2.5-previewMercury 2.5 Preview is an API model from inception, released on Aug 31, 2026, with a context window of 260,000 tokens, pricing of $0.04 per million input tokens and $0.15 per million output tokens. It accepts text input and produces text output.
At listed prices, a request with 10,000 input tokens and 1,000 output tokens costs about $0.00055.
Specs are sourced from OpenRouter and were last checked on Sep 6, 2026. Always confirm current pricing and limits with the provider before production use.
Mercury 2.5 Preview supports a context window of 260,000 tokens.
Mercury 2.5 Preview is listed at $0.04 per million input tokens and $0.15 per million output tokens on OpenRouter.
Mercury 2.5 Preview was published on Aug 31, 2026.
Mercury 2.5 Preview accepts text input and produces text output.