Self-hosting and data control
Choose Mistral Medium 3.5
Mistral Medium 3.5 has open weights, so you can run it on your own servers; Claude Mythos Preview is only available through its provider.
Claude Mythos Preview vs Mistral Medium 3.5: price, context and capabilities
Choose Mistral Medium 3.5 for self-hosting and data control; on the other points the two are level or the data is missing.
In short
- A price comparison is not possible: one of them has no comparable published price.
- Only Claude Mythos Preview offers reasoning, batch api.
- Only Mistral Medium 3.5 offers self-hostable.
Which should you choose?
Each answer below comes straight from the published prices, specifications and independent benchmark results.
Specifications side by side
| Claude Mythos Preview | Mistral Medium 3.5 | |
|---|---|---|
| Provider | Anthropic | Mistral AI |
| Category | Language models | Language models |
| Status | Deprecated · Limited access | Generally available |
| Headline price | No data | No data |
| Input | No data | No data |
| Output | No data | No data |
| Cached input | No data | No data |
| Context window | No data | 256k |
| Max output | No data | No data |
| Released | April 2026 | April 2026 |
| Knowledge cutoff | No data | No data |
| Licence | Proprietary | Open weights |
| Capabilities | Vision, Reasoning, Tool calling, Structured output, Batch API | Vision, Tool calling, Structured output, Self-hostable |
| API model id | claude-mythos-preview | mistral-medium-3-5 |
Benchmarks side by side
Leader in bold.
| Benchmark | Claude Mythos Preview | Mistral Medium 3.5 |
|---|---|---|
| Intelligence Index | No data | 14.2 |
| Terminal-Bench Hard | No data | 33.3% |
| SciCode | No data | 40.2% |
| GPQA Diamond | No data | 74.8% |
| Humanity's Last Exam | No data | 13.8% |
| IFBench (instruction following) | No data | 68.8% |
| τ²-Bench (agentic tool use) | No data | 94.2% |
| MMMU-Pro (visual reasoning) | No data | 64.9% |
| Long-context reasoning (AA-LCR) | No data | 69.3% |
Independent evaluations by Artificial Analysis, run the same way for every model, at the reasoning setting shown. Percentages unless marked as an index.
Frequently asked questions
Should I choose Claude Mythos Preview or Mistral Medium 3.5?
Choose Mistral Medium 3.5 for self-hosting and data control; on the other points the two are level or the data is missing.
Which is cheaper, Claude Mythos Preview or Mistral Medium 3.5?
A price comparison is not possible: one of them has no comparable published price.
What is the difference between Claude Mythos Preview and Mistral Medium 3.5?
Claude Mythos Preview is made by Anthropic and Mistral Medium 3.5 by Mistral AI. A price comparison is not possible: one of them has no comparable published price. Only Claude Mythos Preview offers reasoning, batch api. Only Mistral Medium 3.5 offers self-hostable.