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...
Tested on 6 benchmarks. Top scores: Artificial Analysis · Long Context Reasoning (71.7%), Artificial Analysis · SciCode (38.5%), Artificial Analysis — Quality Index (12.3%).
Artificial Analysis Quality Index. Composite quality score combining multiple benchmark results into a single metric.
- Typetext
- Context260K tokens (~130 books)
- ReleasedSep 2026
- LicenseProprietary
- StatusActive
- Cost / Message~$0.000
Frequently Asked Questions
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- Mercury 2.5 by inception. Not enough public benchmark scores to rank yet.
- List price $0.0400 input · $0.15 output per 1M tokens (as of 2026-10-05).
- Sold by 1 provider (as of 2026-10-05): Inception $0.0400 in / $0.15 out.
How to cite · data as of 2026-10-05
Mercury 2.5 · benchmarks, pricing and providers. BenchGecko, data as of 2026-10-05. https://benchgecko.ai/model/mercury-2-5
Credit "Source: BenchGecko" with a link. Prices per provider and Gecko Tests are BenchGecko data (CC BY 4.0); benchmark scores keep their original source, listed in the JSON. JSON · llms.txt · MCP