Mercury 2.5 Preview
Archived
Inception🇺🇸
inception/mercury-2.5-previewMercury 2.5 Preview is Inception Labs' latest diffusion-based LLM (dLLM), generating and refining tokens in parallel rather than sequentially to reach 1,100+ tokens/second with a 260K-token context window. It delivers a 10+ point intelligence jump over Mercury 2 (comparable to cost-optimized frontier models like Claude Haiku 4.5 and Gemini 3.5 Flash-Lite) with tunable reasoning, parallel tool calls, and schema-aligned JSON output, and this preview targets latency-sensitive search agents, voice pipelines, and coding subagents.
Cost rate
0.1x
Context
260K
Released
Aug 31, 2026
Input
Text
Output
Text
Support
ReasoningTool callingStructured outputs