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| Spec | Z.ai |
|---|---|
| Params | 321B |
| Architecture | dense |
| Context | 1.3M |
| License | |
| License terms | MIT License |
| 202.6 GBest | |
| Cheapest hosted (out/1M) | $0.50 · Relace |
| Released | Aug 25, 2026 |
| LiveBench | 71.59 |
| LiveBench Agentic Coding | 56.77 |
| LiveBench Coding | 78.95 |
| LiveBench Data Analysis | 76.4 |
| LiveBench Instruction Following | 52.82 |
| LiveBench Language | 77.31 |
| LiveBench Mathematics | 81.24 |
| LiveBench Reasoning | 77.64 |
| Arena Agent | 27th of 55 |
| Arena Agent · Recoverygets back on track after a command fails | 40th of 55 |
| Arena Agent · Steerabilitydoes what it was asked, and changes course when told | 27th of 55 |
| Arena Agent · Task outcomefinishes what the session set out to do | 11th of 55 |
| Arena Agent · Tool usereaches for the right one, and does not invent one | 9th of 55 |
| Arena Coding | 1523 |
| Arena Creative Writing | 1433 |
| Arena Hard Prompts | 1499 |
| Arena Instruction Following | 1474 |
| Arena Maths | 1501 |
| Arena Text (overall) | 1474 |
| Arena Code (WebDev) | 1613 |
