Open-weight 21B MoE released under Apache 2.0 with 3.6B active parameters per forward pass.
| Company | OpenAI |
|---|---|
| Family | gpt-oss |
| Released | Aug 2025 |
| License | Apache 2.0 |
| Parameters | 21B total · 3.6B active |
| Capabilities | #open-weights · #efficient · #coding |
| Model card | OpenRouter |
| Task | Score | Status | Runtime | Tokens in | Tokens out | Cost |
|---|---|---|---|---|---|---|
| Physics Pendulum Wave | 100.0 | success | 3m 51s | 2,545 | 15,035 | free |
| Circuit Builder Teaser | 100.0 | success | 3m 54s | 2,540 | 25,161 | free |
| N-Body Field | 96.0 | success | 2m 46s | 2,550 | 17,029 | free |
| Crypto Hash Race | 94.0 | partial | 1m 06s | 496 | 6,801 | free |
| Landing Page Morph | 92.0 | success | 3m 06s | 2,575 | 13,378 | free |
| Equation Solver | 92.0 | success | 1m 03s | 635 | 5,116 | free |
| Mini Platformer | 87.0 | success | 1m 59s | 2,560 | 17,853 | free |