GPT-6 Astra ProvsMistral Medium 3
Mistral Medium 3 is cheaper than GPT-6 Astra Pro at $0.4/M vs $10/M input tokens.
| Spec | GPT-6 Astra Pro | Mistral Medium 3 |
|---|---|---|
| Input price | $10/M tokens | $0.4/M tokens |
| Output price | $50/M tokens | $2/M tokens |
| Context window | 1.1M tokens | 131K tokens |
| Weights | Closed | — |
| Free API (OpenRouter) | No | No |
| Released | Sep 2026 | May 2025 |
Our Verdict
GPT-6 Astra Pro
Mistral Medium 3Runner-up
Not enough votes to call it. On the specs, GPT-6 Astra Pro has the edge: bigger model tier, newer, bigger context window, major provider backing.
Mistral Medium 3 costs 25x less per token.
Slight edge
API pricing
Cost per 1M tokens
GPT-6 Astra Pro
Input
$10.00
Output
$50.00
Mistral Medium 3
Input
$0.40
25× cheaper
Output
$2.00
25× cheaper
Mistral Medium 3 is cheaper on both: 25× input, 25× output.
Where to run it
3 hosts
GPT-6 Astra Pro2 hosts
Mistral Medium 31 host
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Research
What we learned reading every model
FAQ
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