GPT-6 Luna Pro vs GPT-6.1 Terra Pro
Price, context window & benchmark comparison
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Verdict: GPT-6 Luna Pro is 10.0× cheaper than GPT-6.1 Terra Pro on a typical 3:1 input/output mix.
| GPT-6 Luna Pro | GPT-6.1 Terra Pro | |
|---|---|---|
| Input price / 1M | $0.10 | $1.00 |
| Output price / 1M | $0.50 | $5.00 |
| Blended price (3:1) | $0.20 | $2.00 |
| Cached input / 1M | $0.01 | $0.05 |
| Context window | 1.1M | 1.1M |
| Max output | 128K | 128K |
| Intelligence index | — | — |
| Coding index | — | — |
| Providers | 6 | 4 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-09-22 | 2026-10-26 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, GPT-6 Luna Pro or GPT-6.1 Terra Pro?
GPT-6 Luna Pro is 10.0× cheaper than GPT-6.1 Terra Pro on a typical 3:1 input/output mix.
GPT-6 Luna Pro vs GPT-6.1 Terra Pro: which has a bigger context window?
GPT-6 Luna Pro: 1,050,000 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-6 Luna Pro ≈ $450.00, GPT-6.1 Terra Pro ≈ $4,500.
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