Claude Sonnet 4.5 vs Xiaomi MiMo-V2.5
Claude Sonnet 4.5 (2025) and Xiaomi MiMo-V2.5 (2026) are frontier-tier reasoning models from Anthropic and Xiaomi. Claude Sonnet 4.5 ships a 200K-token context window, while Xiaomi MiMo-V2.5 ships a 1M-token context window. On pricing, Xiaomi MiMo-V2.5 costs $0.4/1M input tokens versus $3/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit. It focuses on practical selection signals rather than broad model-family marketing.
Xiaomi MiMo-V2.5 is ~650% cheaper at $0.4/1M; pay for Claude Sonnet 4.5 only for vision-heavy evaluation.
Specs
| Released | 2025-09-29 | 2026-04-22 |
| Context window | 200K | 1M |
| Parameters | — | — |
| Architecture | decoder only | - |
| License | Proprietary | Proprietary |
| Knowledge cutoff | 2025-12 | - |
Pricing and availability
| Claude Sonnet 4.5 | Xiaomi MiMo-V2.5 | |
|---|---|---|
| Input price | $3/1M tokens | $0.4/1M tokens |
| Output price | $15/1M tokens | $2/1M tokens |
| Providers |
Capabilities
| Claude Sonnet 4.5 | Xiaomi MiMo-V2.5 | |
|---|---|---|
| Vision | ||
| Multimodal | ||
| Reasoning | ||
| Function calling | ||
| Tool use | ||
| Structured outputs | ||
| Code execution |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
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, Claude Sonnet 4.5 lists $3/1M input and $15/1M output tokens, while Xiaomi MiMo-V2.5 lists $0.4/1M input and $2/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Xiaomi MiMo-V2.5 lower by about $5.72 per million blended tokens. Availability is 8 providers versus 1, so concentration risk also matters.
Choose Claude Sonnet 4.5 when vision-heavy evaluation and broader provider choice are central to the workload. Choose Xiaomi MiMo-V2.5 when long-context analysis, larger context windows, and lower input-token cost 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, Claude Sonnet 4.5 or Xiaomi MiMo-V2.5?
Xiaomi MiMo-V2.5 supports 1M tokens, while Claude Sonnet 4.5 supports 200K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Claude Sonnet 4.5 or Xiaomi MiMo-V2.5?
Xiaomi MiMo-V2.5 is cheaper on tracked token pricing. Claude Sonnet 4.5 costs $3/1M input and $15/1M output tokens. Xiaomi MiMo-V2.5 costs $0.4/1M input and $2/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Claude Sonnet 4.5 or Xiaomi MiMo-V2.5 open source?
Claude Sonnet 4.5 is listed under Proprietary. Xiaomi MiMo-V2.5 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, Claude Sonnet 4.5 or Xiaomi MiMo-V2.5?
Both Claude Sonnet 4.5 and Xiaomi MiMo-V2.5 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, Claude Sonnet 4.5 or Xiaomi MiMo-V2.5?
Both Claude Sonnet 4.5 and Xiaomi MiMo-V2.5 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 Claude Sonnet 4.5 and Xiaomi MiMo-V2.5?
Claude Sonnet 4.5 is available on Microsoft Foundry, Anthropic, Snowflake Cortex, GCP Vertex AI, and AWS Bedrock. Xiaomi MiMo-V2.5 is available on OpenRouter. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-04-24. Data sourced from public model cards and provider documentation.