GPT-6 Astra vs Mistral Large 4
Price, context window & benchmark comparison
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Verdict: Mistral Large 4 is 19.0× cheaper than GPT-6 Astra on a typical 3:1 input/output mix. GPT-6 Astra scores higher on the Artificial Analysis Intelligence Index (56.9 vs 26). GPT-6 Astra has the larger context window (1.1M vs 1M).
| GPT-6 Astra | Mistral Large 4 | |
|---|---|---|
| Input price / 1M | $10.00 | $0.70 |
| Output price / 1M | $50.00 | $2.10 |
| Blended price (3:1) | $20.00 | $1.05 |
| Cached input / 1M | $1.00 | $0.07 |
| Context window | 1.1M | 1M |
| Max output | 128K | 262K |
| Intelligence index | 56.9 | 26 |
| Coding index | 76.9 | — |
| Providers | 7 | 3 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-09-04 | 2026-10-06 |
| Retirement | — | — |
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FAQ
Which is cheaper, GPT-6 Astra or Mistral Large 4?
Mistral Large 4 is 19.0× cheaper than GPT-6 Astra on a typical 3:1 input/output mix.
GPT-6 Astra vs Mistral Large 4: which has a bigger context window?
GPT-6 Astra: 1,050,000 tokens. Mistral Large 4: 1,048,576 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GPT-6 Astra ≈ $45,000, Mistral Large 4 ≈ $2,450.
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