Grok 4.5 vs Mistral Large 3
Both are Flagship-tier models, from xAI 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 $2.00).
- Output price: Mistral Large 3 is cheaper ($1.50 vs $6.00).
- Blended, 4:1 input:output ratio: Mistral Large 3 is 75% cheaper ($0.70 vs $2.80 per weighted 1M tokens).
Side by side
| Spec | Grok 4.5 | Mistral Large 3 |
|---|---|---|
| Provider | xAI | Mistral AI |
| Tier | Flagship | Flagship |
| Context window | 500K | 256K |
| Max output | — | — |
| Input $/1M | $2.00 | $0.50 |
| Output $/1M | $6.00 | $1.50 |
| Cache read $/1M | $0.30 | — |
| Modalities | text, image | text |
Grok 4.5. Short-context rate, for prompts under 200K tokens. At 200K and above: $4 input / $12 output, cache read $0.60 per 1M. Same input and output price as Grok 4.6 with a cheaper cache read; the previous flagship, not marked deprecated.
Sources
Grok 4.5 — verified August 29, 2026
Mistral Large 3 — verified August 29, 2026
Full Grok 4.5 pricing page → · Full Mistral Large 3 pricing page →