GPT-5.6 Sol vs Mistral Large 3
Both are Flagship-tier models, from OpenAI and Mistral AI respectively. Mistral Large 3 is the cheaper choice overall at a 4:1 input:output ratio.
Which is cheaper
- Input price: Mistral Large 3 is cheaper ($0.50 vs $4.00).
- Output price: Mistral Large 3 is cheaper ($1.50 vs $20.00).
- Blended, 4:1 input:output ratio: Mistral Large 3 is 90.3% cheaper ($0.70 vs $7.20 per weighted 1M tokens).
Side by side
| Spec | GPT-5.6 Sol | Mistral Large 3 |
|---|---|---|
| Provider | OpenAI | Mistral AI |
| Tier | Flagship | Flagship |
| Context window | 1.05M | 256K |
| Max output | 128K | — |
| Input $/1M | $4.00 | $0.50 |
| Output $/1M | $20.00 | $1.50 |
| Cache read $/1M | $0.40 | — |
| Cache write $/1M | $5.00 | — |
| Modalities | text, image | text |
GPT-5.6 Sol. Short-context rate, for prompts up to 272K input tokens. Above 272K the rate is $8 input / $30 output, cache read $0.80, cache write $10 per 1M. Promotional pricing, stated to run at least through 21 November 2026.
Sources
GPT-5.6 Sol — verified August 29, 2026
Mistral Large 3 — verified August 29, 2026
Full GPT-5.6 Sol pricing page → · Full Mistral Large 3 pricing page →