gpt-oss-20b vs Qwen3.8 Omni Flash
Price, context window & benchmark comparison
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Verdict: gpt-oss-20b is 6.4× cheaper than Qwen3.8 Omni Flash on a typical 3:1 input/output mix. Qwen3.8 Omni Flash has the larger context window (1M vs 131K).
| gpt-oss-20b | Qwen3.8 Omni Flash | |
|---|---|---|
| Input price / 1M | $0.018 | $0.15 |
| Output price / 1M | $0.09 | $0.47 |
| Blended price (3:1) | $0.036 | $0.23 |
| Cached input / 1M | — | $0.016 |
| Context window | 131K | 1M |
| Max output | 33K | 131K |
| Intelligence index | 9 | — |
| Coding index | 20.7 | — |
| Providers | — | 1 |
| Best provider uptime (30m) | — | 100.0% |
| Vision input | No | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2025-08-05 | 2026-09-21 |
| Retirement | — | — |
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FAQ
Which is cheaper, gpt-oss-20b or Qwen3.8 Omni Flash?
gpt-oss-20b is 6.4× cheaper than Qwen3.8 Omni Flash on a typical 3:1 input/output mix.
gpt-oss-20b vs Qwen3.8 Omni Flash: which has a bigger context window?
gpt-oss-20b: 131,072 tokens. Qwen3.8 Omni Flash: 1,000,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: gpt-oss-20b ≈ $81.00, Qwen3.8 Omni Flash ≈ $535.00.
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