GPT-5 Image Mini vs GPT-6.1 Terra Pro
Price, context window & benchmark comparison
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Verdict: GPT-6.1 Terra Pro is 16% cheaper than GPT-5 Image Mini on a typical 3:1 input/output mix. GPT-6.1 Terra Pro has the larger context window (1.1M vs 400K).
| GPT-5 Image Mini | GPT-6.1 Terra Pro | |
|---|---|---|
| Input price / 1M | $2.50 | $1.00 |
| Output price / 1M | $2.00 | $5.00 |
| Blended price (3:1) | $2.38 | $2.00 |
| Cached input / 1M | $0.25 | $0.05 |
| Context window | 400K | 1.1M |
| Max output | 128K | 128K |
| Intelligence index | — | — |
| Coding index | — | — |
| Providers | — | 6 |
| Best provider uptime (30m) | — | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | No | Yes |
| Released | 2025-10-16 | 2026-10-26 |
| Retirement | 2026-12-01 | — |
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FAQ
Which is cheaper, GPT-5 Image Mini or GPT-6.1 Terra Pro?
GPT-6.1 Terra Pro is 16% cheaper than GPT-5 Image Mini on a typical 3:1 input/output mix.
GPT-5 Image Mini vs GPT-6.1 Terra Pro: which has a bigger context window?
GPT-5 Image Mini: 400,000 tokens. GPT-6.1 Terra Pro: 1,050,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GPT-5 Image Mini ≈ $6,000, GPT-6.1 Terra Pro ≈ $4,500.
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