Xiaomi MiMo-V2.5 vs Mistral Medium 3.5
Xiaomi MiMo-V2.5 (2026) and Mistral Medium 3.5 (2026) are frontier-tier reasoning models from Xiaomi and MistralAI. Xiaomi MiMo-V2.5 ships a 1.05m-token context window, while Mistral Medium 3.5 ships a 256k-token context window. On MMLU PRO, Xiaomi MiMo-V2.5 leads by 5.1 pts. On pricing, Xiaomi MiMo-V2.5 costs $0.14/1M input tokens versus $1.50/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Xiaomi MiMo-V2.5 is ~971% cheaper at $0.14/1M; pay for Mistral Medium 3.5 only for vision-heavy evaluation.
Decision scorecard
Local evidence first| Signal | Xiaomi MiMo-V2.5 | Mistral Medium 3.5 |
|---|---|---|
| Best for | reasoning-heavy apps, multimodal apps, and tool-calling agents | reasoning-heavy apps, multimodal apps, and tool-calling agents |
| Decision fit | RAG, Agents, and Long context | Coding, RAG, and Agents |
| Context window | 1.05m | 256k |
| Cheapest output | $0.28/1M tokens | $7.50/1M tokens |
| Provider routes | 2 tracked | 3 tracked |
| Shared benchmarks | MMLU PRO leader | 2 rows |
Decision tradeoffs
- Xiaomi MiMo-V2.5 holds a shared-benchmark lead on MMLU PRO, ahead by 5.1 points.
- Xiaomi MiMo-V2.5 has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Xiaomi MiMo-V2.5 has the lower cheapest tracked output price at $0.28/1M tokens.
- Local decision data tags Xiaomi MiMo-V2.5 for RAG, Agents, and Long context.
- Mistral Medium 3.5 has broader tracked provider coverage for fallback and procurement flexibility.
- Local decision data tags Mistral Medium 3.5 for Coding, RAG, and Agents.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Xiaomi MiMo-V2.5
$182
Cheapest tracked route/tier: OpenRouter
Mistral Medium 3.5
$3,075
Cheapest tracked route/tier: Mistral AI Studio
Estimated monthly gap: $2,893. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Mistral Medium 3.5 is $7.22/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Xiaomi MiMo-V2.5 is $7.22/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-22 | 2026-04-29 |
| Context window | 1.05m | 256k |
| Parameters | — | 128B |
| Architecture | - | decoder only |
| License | Proprietary | Proprietary |
| Openness | Proprietary | Proprietary |
| Commercial use | Commercial use with conditions | Commercial use with conditions |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Xiaomi MiMo-V2.5 | Mistral Medium 3.5 |
|---|---|---|
| Input price | $0.14/1M tokens | $1.50/1M tokens |
| Output price | $0.28/1M tokens | $7.50/1M tokens |
| Providers |
Capabilities
| Capability | Xiaomi MiMo-V2.5 | Mistral Medium 3.5 |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | Yes | Yes |
| Function calling | Yes | Yes |
| Tool use | Yes | Yes |
| Structured outputs | Yes | Yes |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
| Benchmark | Xiaomi MiMo-V2.5 | Mistral Medium 3.5 |
|---|---|---|
| MMLU PRO | 84.9 | 79.8 |
| Google-Proof Q&A | 83.7 | 71.3 |
Deep dive
On shared benchmark coverage, MMLU PRO has Xiaomi MiMo-V2.5 at 84.9 and Mistral Medium 3.5 at 79.8, with Xiaomi MiMo-V2.5 ahead by 5.1 points; Google-Proof Q&A has Xiaomi MiMo-V2.5 at 83.7 and Mistral Medium 3.5 at 71.3, with Xiaomi MiMo-V2.5 ahead by 12.4 points. The largest visible gap is 12.4 points on Google-Proof Q&A, which matters most when that benchmark mirrors your workload. Treat isolated benchmark wins as directional, because provider routing, prompt style, and tool access can move real application results.
The capability footprint is close: both models cover vision, multimodal input, reasoning mode, function calling, and tool use. That makes context budget, benchmark fit, and provider maturity more important than a simple checklist. If your application depends on one integration detail, verify it against the provider route you plan to use, not just the base model listing.
For cost, Xiaomi MiMo-V2.5 lists $0.14/1M input and $0.28/1M output tokens on the cheapest tracked provider, while Mistral Medium 3.5 lists $1.50/1M input and $7.50/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Xiaomi MiMo-V2.5 lower by about $3.12 per million blended tokens. Availability is 2 providers versus 3, so concentration risk also matters.
Choose Xiaomi MiMo-V2.5 when long-context analysis, larger context windows, and lower input-token cost are central to the workload. Choose Mistral Medium 3.5 when vision-heavy evaluation 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.
FAQ
Which has a larger context window, Xiaomi MiMo-V2.5 or Mistral Medium 3.5?
Xiaomi MiMo-V2.5 supports 1.05m tokens, while Mistral Medium 3.5 supports 256k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Xiaomi MiMo-V2.5 or Mistral Medium 3.5?
Xiaomi MiMo-V2.5 is cheaper on tracked token pricing. Xiaomi MiMo-V2.5 costs $0.14/1M input and $0.28/1M output tokens. Mistral Medium 3.5 costs $1.50/1M input and $7.50/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Xiaomi MiMo-V2.5 or Mistral Medium 3.5 open source?
Xiaomi MiMo-V2.5 is listed under Proprietary. Mistral Medium 3.5 is listed under Proprietary. 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, Xiaomi MiMo-V2.5 or Mistral Medium 3.5?
Both Xiaomi MiMo-V2.5 and Mistral Medium 3.5 expose vision. 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 multimodal input, Xiaomi MiMo-V2.5 or Mistral Medium 3.5?
Both Xiaomi MiMo-V2.5 and Mistral Medium 3.5 expose multimodal input. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Where can I run Xiaomi MiMo-V2.5 and Mistral Medium 3.5?
Xiaomi MiMo-V2.5 is available on OpenRouter and Xiaomi. Mistral Medium 3.5 is available on Mistral AI Studio, OpenRouter, and Vercel AI Gateway. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-05-26. Data sourced from public model cards and provider documentation.