GPT-6 Luna Pro vs Sonar Pro
Price, context window & benchmark comparison
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Verdict: GPT-6 Luna Pro is 30.0× cheaper than Sonar Pro on a typical 3:1 input/output mix. GPT-6 Luna Pro has the larger context window (1.1M vs 200K).
| GPT-6 Luna Pro | Sonar Pro | |
|---|---|---|
| Input price / 1M | $0.10 | $3.00 |
| Output price / 1M | $0.50 | $15.00 |
| Blended price (3:1) | $0.20 | $6.00 |
| Cached input / 1M | $0.01 | — |
| Context window | 1.1M | 200K |
| Max output | 128K | 8K |
| Intelligence index | — | — |
| Coding index | — | — |
| Providers | 6 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | Yes | Yes |
| Reasoning | Yes | No |
| Tool calling | Yes | No |
| Released | 2026-09-22 | 2025-03-07 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, GPT-6 Luna Pro or Sonar Pro?
GPT-6 Luna Pro is 30.0× cheaper than Sonar Pro on a typical 3:1 input/output mix.
GPT-6 Luna Pro vs Sonar Pro: which has a bigger context window?
GPT-6 Luna Pro: 1,050,000 tokens. Sonar Pro: 200,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GPT-6 Luna Pro ≈ $450.00, Sonar Pro ≈ $13,500.
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