Mercury 2
A diffusion-based reasoning LLM that generates text via parallel refinement (not token-by-token), delivering real-time latency with ~1k tokens/sec plus 128K context and built-in tool/JSON support.
text → text · made by Inception Labs
Sold by 5 ways
| Seller | Lane | Rate |
|---|---|---|
| Inception Labs api | standard | $0.25per Mtok in$0.75per Mtok out$0.025per Mtok cacheddocs.inceptionlabs.ai · read 2026-08-25 |
| Nous Research aggregator | standard | $0.25per Mtok in$0.75per Mtok out$0.025per Mtok cachedinference-api.nousresearch.com · read 2026-09-12 |
| OpenRouter aggregator | standard | $0.25per Mtok in$0.75per Mtok out$0.025per Mtok cachedopenrouter.ai · read 2026-08-24 |
| Vercel AI Gateway aggregator | standard | $0.25per Mtok in$0.75per Mtok out$0.025per Mtok cachedai-gateway.vercel.sh · read 2026-08-25 |
| Venice AI aggregator | standard | $0.31per Mtok in$0.94per Mtok out$0.031per Mtok cachedmodels.dev · read 2026-10-31 |
Measured 18 standings
| Place | Board | Metric | Score |
|---|---|---|---|
| 81stof 132 | Ale bench — Epoch AI | Performance | 785.58 |
| 87thof 111 | Vectara Hallucination Leaderboard | Hallucination Rate | 12.3 |
| 93rdof 93 | Design Arena · asciiart (models) | Elo | 986 |
| 99thof 173 | Weirdml — Epoch AI | Accuracy | 43.2 |
| 108thof 131 | Artificial Analysis · Agentic Index | Index | 1.6 |
| 109thof 114 | Design Arena · svg (models) | Elo | 999 |
| 120thof 163 | Artificial Analysis · Coding Index | Index | 31.1 |
| 133rdof 135 | Webdev arena — Epoch AI | Arena Score | 1166.59 |
| 135thof 150 | Design Arena · 3d (models) | Elo | 975 |
| 138thof 141 | LMArena · WebDev | Score (Elo) | 1171 |
| 140thof 154 | Design Arena · dataviz (models) | Elo | 1016 |
| 142ndof 157 | Design Arena · uicomponent (models) | Elo | 992 |
| 146thof 163 | Design Arena · codecategories (models) | Elo | 1019 |
| 148thof 169 | Design Arena · website (models) | Elo | 1036 |
| 149thof 162 | Design Arena · gamedev (models) | Elo | 979 |
| 182ndof 260 | Critpt — Epoch AI | Accuracy | 0.849 |
| 192ndof 235 | Scicode — Epoch AI | Score | 38.657 |
| 225thof 414 | LMArena · Text | Score (Elo) | 1344 |
About
Mercury 2 — a text model from Inception Labs, sold by 5 companies from $0.25 in and $0.75 out per million tokens, placed 225th of 414 on LMArena · Text.
It takes text and returns text, with a context window of 128,000 tokens. It was published in February 2026, trained on material up to 2025. Its sellers say it can reason step by step and call a tool. The catalogue files it under code. Five companies sell it. The cheapest is $0.25 in and $0.75 out per million tokens at Inception Labs. It has been measured on 18 boards, and stands best at 225th of 414 on LMArena · Text.
Every current figure
- Maker
- Inception Labs
- Register
- model
- Takes
- text
- Returns
- text
- Context
- 128,000 tokens
- Published
- February 2026
- Knowledge to
- 2025
- Licence
- not read
- Sellers
- 5
- Price
- $0.25 in and $0.75 out per million tokens — Inception Labs
- Boards
- 18
- Best place
- 225th of 414 — LMArena · Text
Known as 2 names
mercury-2inception/mercury-2