by Inception
Mercury 2 is an extremely fast reasoning LLM, and the first reasoning diffusion LLM (dLLM). Instead of generating tokens sequentially, Mercury 2 produces and refines multiple tokens in parallel, achieving >1,000 tokens/sec on standard GPUs. Mercury 2 is 5x+ faster than leading speed-optimized LLMs like Claude 4.5 Haiku and GPT 5 Mini, at a fraction of the cost. Mercury 2 supports tunable reasoning levels, 128K context, native tool use, and schema-aligned JSON output. Built for coding workflows where latency compounds, real-time voice/search, and agent loops. OpenAI API compatible. Read more in the [blog post](https://www.inceptionlabs.ai/blog/introducing-mercury-2).
| Signal | Strength | Weight | Impact |
|---|---|---|---|
| Recencyjust now | 100 | 15% | +15.0 |
| Capabilitiesjust now | 57 | 25% | +14.3 |
| Context Windowjust now | 81 | 15% | +12.2 |
| Output Capacityjust now | 78 | 10% | +7.8 |
| Versatilityjust now | 33 | 10% | +3.3 |
| Pricing Tierjust now | 1 | 25% | +0.2 |
Cost Estimator
You save $39.23/month vs category average