GPT-6.1 Terra vs gpt-oss-120b
Price, context window & benchmark comparison
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Verdict: gpt-oss-120b is 7.6× cheaper than GPT-6.1 Terra on a typical 3:1 input/output mix. GPT-6.1 Terra scores higher on the Artificial Analysis Intelligence Index (51.3 vs 3.8). GPT-6.1 Terra has the larger context window (1.1M vs 131K).
| GPT-6.1 Terra | gpt-oss-120b | |
|---|---|---|
| Input price / 1M | $1.00 | $0.15 |
| Output price / 1M | $5.00 | $0.60 |
| Blended price (3:1) | $2.00 | $0.26 |
| Cached input / 1M | $0.05 | $0.075 |
| Context window | 1.1M | 131K |
| Max output | 128K | 66K |
| Intelligence index | 51.3 | 3.8 |
| Coding index | — | 30.4 |
| Providers | 7 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | Yes | No |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-10-26 | 2025-08-05 |
| Retirement | — | — |
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FAQ
Which is cheaper, GPT-6.1 Terra or gpt-oss-120b?
gpt-oss-120b is 7.6× cheaper than GPT-6.1 Terra on a typical 3:1 input/output mix.
GPT-6.1 Terra vs gpt-oss-120b: which has a bigger context window?
GPT-6.1 Terra: 1,050,000 tokens. gpt-oss-120b: 131,072 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GPT-6.1 Terra ≈ $4,500, gpt-oss-120b ≈ $600.00.
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