Mercury 2.5 Preview

Closed Source

Closed Weights

Parameters

Undisclosed

Context Length

260K

Modality

Text

Architecture

Undisclosed

License

Proprietary

Release Date

31 Aug 2026

Knowledge Cutoff

API Pricing (per 1M)

Input: $0.25 · Output: $0.75

Evaluation Benchmarks

Rank

#163

Benchmark	Score	Rank
Coding Index Artificial Analysis	0.31	121

Rankings

Overall Rank

#163

Coding Rank

#106

About Mercury 2.5 Preview

Mercury 2.5 Preview is an ultra-fast diffusion-based reasoning language model from Inception that refines multiple tokens in parallel. It is engineered for high-throughput reasoning, real-time code generation, and low-latency interactive workflows.

Technical Specifications

Architecture specifications are undisclosed for proprietary models.

About Mercury

The Mercury model family developed by Inception.

Other Mercury Models

Mercury 2.5