Grok Code Fast 1 vs Xiaomi MiMo-V2.5
Grok Code Fast 1 (2025) and Xiaomi MiMo-V2.5 (2026) compare a coding-specialized model against a standalone API model. Grok Code Fast 1 ships a 262k-token context window, while Xiaomi MiMo-V2.5 ships a 1.05m-token context window. On pricing, Xiaomi MiMo-V2.5 costs $0.14/1M input tokens versus $0.20/1M for the alternative. This page treats the result as workflow and deployment fit, not a universal model winner.
Treat this as a product-type comparison: Grok Code Fast 1 is coding-specialized model, while Xiaomi MiMo-V2.5 is standalone API model. Choose based on workflow fit before reading any benchmark or price row as decisive.
Decision scorecard
Local evidence first| Signal | Grok Code Fast 1 | Xiaomi MiMo-V2.5 |
|---|---|---|
| Product type | Coding-specialized model | Standalone API model |
| Best for | custom coding agents, code generation, and tool loops | reasoning-heavy apps, multimodal apps, and tool-calling agents |
| Decision fit | Coding, RAG, and Agents | RAG, Agents, and Long context |
| Context window | 262k | 1.05m |
| Cheapest output | $1.50/1M tokens | $0.28/1M tokens |
| Provider routes | 3 tracked | 2 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Grok Code Fast 1 has broader tracked provider coverage for fallback and procurement flexibility.
- Local decision data tags Grok Code Fast 1 for Coding, RAG, and Agents.
- 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.
- Xiaomi MiMo-V2.5 uniquely exposes Vision, Multimodal, and Reasoning in local model data.
- Local decision data tags Xiaomi MiMo-V2.5 for RAG, Agents, and Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Grok Code Fast 1
$535
Cheapest tracked route/tier: OpenRouter
Xiaomi MiMo-V2.5
$182
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $353. 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.
- Xiaomi MiMo-V2.5 is $1.22/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Xiaomi MiMo-V2.5 adds Vision, Multimodal, and Reasoning in local capability data.
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Grok Code Fast 1 is $1.22/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Vision, Multimodal, and Reasoning before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-08-27 | 2026-04-22 |
| Context window | 262k | 1.05m |
| Parameters | 314B | — |
| Architecture | mixture of experts | - |
| License | Proprietary | Proprietary |
| Openness | Proprietary | Proprietary |
| Commercial use | Commercial use with conditions | Commercial use with conditions |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Grok Code Fast 1 | Xiaomi MiMo-V2.5 |
|---|---|---|
| Input price | $0.20/1M tokens | $0.14/1M tokens |
| Output price | $1.50/1M tokens | $0.28/1M tokens |
| Providers |
Capabilities
| Capability | Grok Code Fast 1 | Xiaomi MiMo-V2.5 |
|---|---|---|
| Vision | No | Yes |
| Multimodal | No | Yes |
| Reasoning | No | 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
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: Xiaomi MiMo-V2.5, multimodal input: Xiaomi MiMo-V2.5, and reasoning mode: Xiaomi MiMo-V2.5. Both models share 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.
For cost, Grok Code Fast 1 lists $0.20/1M input and $1.50/1M output tokens on the cheapest tracked provider, while Xiaomi MiMo-V2.5 lists $0.14/1M input and $0.28/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Xiaomi MiMo-V2.5 lower by about $0.41 per million blended tokens. Availability is 3 providers versus 2, so concentration risk also matters.
Choose Grok Code Fast 1 when coding workflow support and broader provider choice are central to the workload. Choose Xiaomi MiMo-V2.5 when reasoning depth, 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.
FAQ
Which has a larger context window, Grok Code Fast 1 or Xiaomi MiMo-V2.5?
Xiaomi MiMo-V2.5 supports 1.05m 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?
Xiaomi MiMo-V2.5 is cheaper on tracked token pricing. Grok Code Fast 1 costs $0.20/1M input and $1.50/1M output tokens. Xiaomi MiMo-V2.5 costs $0.14/1M input and $0.28/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Grok Code Fast 1 or Xiaomi MiMo-V2.5 open source?
Grok Code Fast 1 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, Grok Code Fast 1 or Xiaomi MiMo-V2.5?
Xiaomi MiMo-V2.5 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. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Which is better for multimodal input, Grok Code Fast 1 or Xiaomi MiMo-V2.5?
Xiaomi MiMo-V2.5 has the clearer documented multimodal input signal in this comparison. If multimodal input is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Grok Code Fast 1 and Xiaomi MiMo-V2.5?
Grok Code Fast 1 is available on OpenRouter, Microsoft Foundry, and xAI Console. Xiaomi MiMo-V2.5 is available on OpenRouter and Xiaomi. 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.