Mercury 2.5 (Preview): benchmark results
Preview of Inception's Mercury 2.5 diffusion LLM, live exclusively on OpenRouter from 2026-08-31 ahead of the 2026-09-08 general release; API-only, no published weights. Provider: Inception. Released 2026-08-31. Access: API.
Aggregate Rating 1622 ± 40, rank #815 of 10916 rated models, from 3 benchmark results.
Strongest benchmark results
| Benchmark | Score | Metric | Percentile |
|---|---|---|---|
| SvelteBench | 88.9 | Average pass@1 (%) | 50.2 |
| Fucc Boi Bench | 6.67 | Average Fuccboi Score (0-10, lower is better) | 30 |
| DuelLab GameBench 2 - Reasoning Variants | 20.59 | GameBench2 normalized score (0–100) | 4 |
Interactive version: theaggregate.ai/model?slug=mercury-2-5-preview · How It Works · Data refreshed daily, snapshot 2026-11-08.