← All models
Mercury
Inception Labs · 2025-06-07
Mercury is Inception Labs' first general-chat diffusion large language model, released as a hosted text model with a native 32,768-token context that can be extended to 128K. Inception upgraded Mercury under the same name in November 2025; Mercury 1 remains supported for existing customers and is distinct from Mercury 2.
Benchmark scores
| Benchmark | Score |
|---|
| Arena Text — Business, Management & Financial Ops (No Style Control) | 1296 |
| Arena Text — Creative Writing (No Style Control) | 1190 |
| Arena Text — English (No Style Control) | 1305 |
| Arena Text — Entertainment, Sports & Media (No Style Control) | 1208 |
| Arena Text — Exclude Ties (No Style Control) | 1214 |
| Arena Text — Exclude Ties (Style Controlled) | 1246 |
| Arena Text — Hard Prompts (No Style Control) | 1287 |
| Arena Text — Hard Prompts English (No Style Control) | 1316 |
| Arena Text — Instruction Following (No Style Control) | 1238 |
| Arena Text — Life, Physical & Social Science (No Style Control) | 1297 |
| Arena Text — Longer Query (No Style Control) | 1265 |
| Arena Text — Multi-turn (No Style Control) | 1283 |
| Arena Text — Non-English (No Style Control) | 1255 |
| Arena Text — Non-English (Style Controlled) | 1282 |
| Arena Text — Software & IT Services (No Style Control) | 1325 |
| Arena Text — Writing, Literature & Language (No Style Control) | 1228 |
| Arena Text Overall — 25% Factuality | 1306 |
| LMArena Text Arena Coding Elo | 1367 |
| LMArena Text Arena Creative Writing Elo | 1222 |
| LMArena Text Arena Elo | 1306 |
| LMArena Text Arena English Elo | 1325 |
| LMArena Text Arena Hard Prompts Elo | 1320 |
| LMArena Text Arena Hard Prompts English Elo | 1344 |
| LMArena Text Arena Industry: Writing, Literature & Language Elo | 1259 |
| LMArena Text Arena Instruction Following Elo | 1270 |
| LMArena Text Arena Longer Query Elo | 1296 |
| LMArena Text Arena Multi-turn Elo | 1300 |
| LMArena Text Arena Occupational Business, Management & Financial Ops Elo | 1327 |
| LMArena Text Arena Occupational Entertainment, Sports, and Media Elo | 1238 |
| LMArena Text Arena Occupational Life, Physical, and Social Science Elo | 1331 |