Grok Code Fast 1 vs Xiaomi MiMo-V2.5-Pro
Grok Code Fast 1 (2025) and Xiaomi MiMo-V2.5-Pro (2026) are agentic coding models from xAI and Xiaomi. Grok Code Fast 1 ships a 262K-token context window, while Xiaomi MiMo-V2.5-Pro ships a 1M-token context window. On pricing, Grok Code Fast 1 costs $0.2/1M input tokens versus $1/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
Grok Code Fast 1 is ~400% cheaper at $0.2/1M; pay for Xiaomi MiMo-V2.5-Pro only for coding workflow support.
Specs
| Released | 2025-08-27 | 2026-04-22 |
| Context window | 262K | 1M |
| Parameters | 314B | 1T |
| Architecture | mixture of experts | mixture of experts |
| License | Proprietary | Proprietary |
| Knowledge cutoff | - | - |
Pricing and availability
| Grok Code Fast 1 | Xiaomi MiMo-V2.5-Pro | |
|---|---|---|
| Input price | $0.2/1M tokens | $1/1M tokens |
| Output price | $1.5/1M tokens | $3/1M tokens |
| Providers |
Capabilities
| Grok Code Fast 1 | Xiaomi MiMo-V2.5-Pro | |
|---|---|---|
| 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 function calling, tool use, and structured outputs. 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, Grok Code Fast 1 lists $0.2/1M input and $1.5/1M output tokens, while Xiaomi MiMo-V2.5-Pro lists $1/1M input and $3/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Grok Code Fast 1 lower by about $1.01 per million blended tokens. Availability is 1 providers versus 1, so concentration risk also matters.
Choose Grok Code Fast 1 when coding workflow support and lower input-token cost are central to the workload. Choose Xiaomi MiMo-V2.5-Pro when coding workflow support and larger context windows 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, Grok Code Fast 1 or Xiaomi MiMo-V2.5-Pro?
Xiaomi MiMo-V2.5-Pro supports 1M tokens, while Grok Code Fast 1 supports 262K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Grok Code Fast 1 or Xiaomi MiMo-V2.5-Pro?
Grok Code Fast 1 is cheaper on tracked token pricing. Grok Code Fast 1 costs $0.2/1M input and $1.5/1M output tokens. Xiaomi MiMo-V2.5-Pro costs $1/1M input and $3/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Grok Code Fast 1 or Xiaomi MiMo-V2.5-Pro open source?
Grok Code Fast 1 is listed under Proprietary. Xiaomi MiMo-V2.5-Pro 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 function calling, Grok Code Fast 1 or Xiaomi MiMo-V2.5-Pro?
Both Grok Code Fast 1 and Xiaomi MiMo-V2.5-Pro expose function calling. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Which is better for tool use, Grok Code Fast 1 or Xiaomi MiMo-V2.5-Pro?
Both Grok Code Fast 1 and Xiaomi MiMo-V2.5-Pro expose tool use. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Where can I run Grok Code Fast 1 and Xiaomi MiMo-V2.5-Pro?
Grok Code Fast 1 is available on OpenRouter. Xiaomi MiMo-V2.5-Pro 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.
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Last reviewed: 2026-04-24. Data sourced from public model cards and provider documentation.