Cloudflare
gpt-oss-20b
Made by OpenAI. Released 2025-08-05. Accessibility not recorded. Cheapest standard rate we hold: $0.30 per million output tokens, no context split.
What it costs
| Tier | Kind | In | Out | Cached in | From |
|---|---|---|---|---|---|
| standard | text | $0.20 | $0.30 | — | registry |
per million tokens, US dollars. * marks a rate from a single registry or two that disagree — the best available number rather than a confirmed one. Every other row is confirmed against a seller or a licensed index.
What it scores, by house
| Benchmark | House | Score | Evaluated | Scaffold |
|---|---|---|---|---|
| chess puzzles | Epoch AI | 0.0±0.02 | 2026-08-27 | medium |
| chess puzzles | Epoch AI | 0.0±0.00 | 2026-08-27 | high |
| chess puzzles | Epoch AI | 0.0±0.01 | 2026-08-27 | low |
| gpqa diamond | Epoch AI | 0.6±0.02 | 2026-08-27 | medium |
| gpqa diamond | Epoch AI | 0.5±0.03 | 2026-08-27 | low |
| gpqa diamond | Epoch AI | 0.5±0.04 | 2026-08-06 | high |
| otis mock aime 2024 2025near its ceiling | Epoch AI | 0.7±0.06 | 2026-08-27 | medium |
| otis mock aime 2024 2025near its ceiling | Epoch AI | 0.4±0.06 | 2026-08-27 | low |
| otis mock aime 2024 2025near its ceiling | Epoch AI | 0.5±0.07 | 2026-08-27 | high |
| ale bench | collected by Epoch AI | 566 | — | — |
| critpt | collected by Epoch AI | 0.0 | — | high |
| dtbenchnear its ceiling | collected by Epoch AI | 0.7 | — | high |
| lmca | collected by Epoch AI | 14.5 | — | high |
| scicode | collected by Epoch AI | 0.3 | — | high |
| terminalbench | collected by Epoch AI | 0.0 | — | Mini-SWE-Agent |
| terminalbench | collected by Epoch AI | 0.0 | — | Terminus 2 |
| weirdml | collected by Epoch AI | 0.4 | — | medium |
| weirdml | collected by Epoch AI | 0.4 | — | high |
These scores are not comparable between houses and are not added up. A score is dated by when it was evaluated, not when the model was released, and a score without its scaffold is not a measurement — which is why both are printed.
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