Mistral Medium 3 vs Qwen3.5-397B-A17B
Mistral Medium 3 (2025) and Qwen3.5-397B-A17B (2026) are frontier reasoning models from MistralAI and Alibaba. Mistral Medium 3 ships a 128K-token context window, while Qwen3.5-397B-A17B ships a 262K-token context window. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit. It focuses on practical selection signals rather than broad model-family marketing. The goal is to make the tradeoff clear before deeper testing.
Qwen3.5-397B-A17B is safer overall; choose Mistral Medium 3 when coding workflow support matters.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-05-01 | 2026-02-16 |
| Context window | 128K | 262K |
| Parameters | — | 397B |
| Architecture | decoder only | MoE |
| License | Proprietary | Apache 2.0 |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Mistral Medium 3 | Qwen3.5-397B-A17B |
|---|---|---|
| Input price | - | $0.39/1M tokens |
| Output price | - | $2.34/1M tokens |
| Providers | - |
Capabilities
| Capability | Mistral Medium 3 | Qwen3.5-397B-A17B |
|---|---|---|
| Vision | Yes | No |
| Multimodal | Yes | Yes |
| Reasoning | No | Yes |
| Function calling | Yes | Yes |
| Tool use | Yes | Yes |
| Structured outputs | Yes | Yes |
| Code execution | Yes | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: Mistral Medium 3, reasoning mode: Qwen3.5-397B-A17B, and code execution: Mistral Medium 3. Both models share multimodal input, function calling, tool use, and structured outputs, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
Pricing coverage is uneven: Mistral Medium 3 has no token price sourced yet and Qwen3.5-397B-A17B has $0.39/1M input tokens. Provider availability is 0 tracked routes versus 1. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Mistral Medium 3 when coding workflow support are central to the workload. Choose Qwen3.5-397B-A17B when reasoning depth, larger context windows, and broader provider choice are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions. It also helps separate model capability from provider packaging, which can change cost and latency.
FAQ
Which has a larger context window, Mistral Medium 3 or Qwen3.5-397B-A17B?
Qwen3.5-397B-A17B supports 262K tokens, while Mistral Medium 3 supports 128K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Mistral Medium 3 or Qwen3.5-397B-A17B open source?
Mistral Medium 3 is listed under Proprietary. Qwen3.5-397B-A17B is listed under Apache 2.0. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for vision, Mistral Medium 3 or Qwen3.5-397B-A17B?
Mistral Medium 3 has the clearer documented vision signal in this comparison. If vision is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for multimodal input, Mistral Medium 3 or Qwen3.5-397B-A17B?
Both Mistral Medium 3 and Qwen3.5-397B-A17B expose multimodal input. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Which is better for reasoning mode, Mistral Medium 3 or Qwen3.5-397B-A17B?
Qwen3.5-397B-A17B has the clearer documented reasoning mode signal in this comparison. If reasoning mode is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Mistral Medium 3 and Qwen3.5-397B-A17B?
Mistral Medium 3 is available on the tracked providers still being sourced. Qwen3.5-397B-A17B is available on OpenRouter. Provider coverage can affect latency, region availability, compliance posture, and fallback options. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Continue comparing
Last reviewed: 2026-05-11. Data sourced from public model cards and provider documentation.