Mercury 2.5
ModelActiveby Inception Labs · family “mercury”
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... (description from the OpenRouter listing)
in: textout: textReasoningTool useStructured output
Epoch Capabilities Index
Not scored by Epoch AI
Released
8 Sep 2026
Context window
260K tokens
Max output
66K tokens
Input $ / 1M tokens
$0.040
Output $ / 1M tokens
$0.15
Cached input $ / 1M
$0.004
Each benchmark shown separately with its own source
Benchmark results (0)
No benchmark results recorded for this model.
Source: Epoch AI Benchmarking Hub (CC BY 4.0). “External” rows are leaderboard results Epoch collects from third parties. Best reported setting per benchmark is shown.
API list price over time
Price history
$ per 1M tokens
No data recorded for this period
1 observation (OpenRouter listing). History accumulates with every ingest run; a single point means no change has been observed yet.
Events
- Model launch21d agoInception releases Mercury 2.5OpenRouter models API