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Add up to four models via ?models=slug-a,slug-b — or pick from any model page.
| Spec | OpenAI | Z.AI |
|---|---|---|
| Params | 120B | 754B |
| Architecture | moe | moe |
| Context | 131K | 205K |
| Weights | ||
| License | Apache License 2.0 | MIT License |
| 75.9 GBest | 475.3 GBest | |
| Cheapest hosted (out/1M) | $0.17 · OpenRouter | $3.04 · OpenRouter |
| Released | Aug 4, 2025 | Apr 3, 2026 |
| Arena Coding | 1390.1 | 1518.4 |
| Arena Creative Writing | 1277.5 | 1448.1 |
| Arena Hard Prompts | 1362 | 1491.5 |
| Arena Instruction Following | 1325.3 | 1464.3 |
| Arena Maths | 1381.3 | 1482.6 |
| Arena Text (overall) | 1352.3 | 1468.8 |
| SWE-bench Verified | 26via mini-SWE-agent | — |
| Arena Agent (IPS) | — | 0.004 |
| Arena Code (WebDev) | — | 1516.2 |
