Claude Opus 4.5 vs Mistral Medium 3.5
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
Anthropic · Nov 2025
The November 2025 Opus that cut flagship pricing 3x to $5/$25 and was the first model past 80% on SWE-bench Verified.
Mistral AI · Mar 2026
Europe's strongest model line: frontier-adjacent quality at $0.40/$2 with EU data residency and on-prem options.
The verdict
These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. On price the gap is dramatic: Mistral Medium 3.5 works out roughly 13x cheaper per blended million tokens. Claude Opus 4.5 also takes 200K of context versus 131K for Mistral Medium 3.5.
Specs & pricing
| Claude Opus 4.5 | Mistral Medium 3.5 | |
|---|---|---|
| modhub Index | — | — |
| Input price / 1M | $5 | $0.4 |
| Output price / 1M | $25 | $2 |
| Context window | 200K | 131K |
| Max output | 64K | — |
| Open weights | no | no |
| Reasoning model | yes | no |
| Multimodal input | text, image | text, image |
| Knowledge cutoff | Mar 2025 | Dec 2025 |
| Released | Nov 2025 | Mar 2026 |
| Example monthly cost* | $87.50 | $7.00 |
* 10M input + 1.5M output tokens per month at list prices, no caching. Green = better value on that row.
Frequently asked questions
- Which is better, Claude Opus 4.5 or Mistral Medium 3.5?
- These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. On price the gap is dramatic: Mistral Medium 3.5 works out roughly 13x cheaper per blended million tokens. Claude Opus 4.5 also takes 200K of context versus 131K for Mistral Medium 3.5.
- Which is cheaper, Claude Opus 4.5 or Mistral Medium 3.5?
- Claude Opus 4.5 costs $5/$25 per million input/output tokens, while Mistral Medium 3.5 costs $0.4/$2. For a typical workload of 10M input and 1.5M output tokens per month, that's $87.50 versus $7.00.
- Which model is better for coding, Claude Opus 4.5 or Mistral Medium 3.5?
- We don't yet track SWE-bench Verified results for both models; check their individual pages for coding-related scores.