Phi-4 14B vs Xiaomi MiMo-V2-Flash
Phi-4 14B (2024) and Xiaomi MiMo-V2-Flash (2025) are frontier reasoning models from Microsoft Research and Xiaomi. Phi-4 14B ships a 16k-token context window, while Xiaomi MiMo-V2-Flash ships a 262k-token context window. On pricing, Phi-4 14B costs $0.07/1M input tokens versus $0.10/1M 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.
Phi-4 14B is ~54% cheaper at $0.07/1M; pay for Xiaomi MiMo-V2-Flash only for reasoning depth.
Decision scorecard
Local evidence first| Signal | Phi-4 14B | Xiaomi MiMo-V2-Flash |
|---|---|---|
| Best for | provider-routed production | reasoning-heavy apps, tool-calling agents, and provider-routed production |
| Decision fit | Classification and JSON / Tool use | RAG, Agents, and Long context |
| Context window | 16k | 262k |
| Cheapest output | $0.14/1M tokens | $0.30/1M tokens |
| Provider routes | 3 tracked | 2 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Phi-4 14B has the lower cheapest tracked output price at $0.14/1M tokens.
- Phi-4 14B has broader tracked provider coverage for fallback and procurement flexibility.
- Phi-4 14B uniquely exposes Structured outputs in local model data.
- Local decision data tags Phi-4 14B for Classification and JSON / Tool use.
- Xiaomi MiMo-V2-Flash has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Xiaomi MiMo-V2-Flash uniquely exposes Reasoning and Function calling in local model data.
- Local decision data tags Xiaomi MiMo-V2-Flash 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.
Phi-4 14B
$87.00
Cheapest tracked route/tier: OpenRouter
Xiaomi MiMo-V2-Flash
$155
Cheapest tracked route/tier: Vercel AI Gateway
Estimated monthly gap: $68.00. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for Phi-4 14B and Xiaomi MiMo-V2-Flash; plan for SDK, billing, or endpoint changes.
- Xiaomi MiMo-V2-Flash is $0.16/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Structured outputs before moving production traffic.
- Xiaomi MiMo-V2-Flash adds Reasoning and Function calling in local capability data.
- No overlapping tracked provider route is sourced for Xiaomi MiMo-V2-Flash and Phi-4 14B; plan for SDK, billing, or endpoint changes.
- Phi-4 14B is $0.16/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Reasoning and Function calling before moving production traffic.
- Phi-4 14B adds Structured outputs in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2024-12-13 | 2025-12-17 |
| Context window | 16k | 262k |
| Parameters | 14B | 309B |
| Architecture | decoder only | moe |
| License | Open Source | MIT |
| Knowledge cutoff | 2024-06 | 2024-12 |
Pricing and availability
| Pricing attribute | Phi-4 14B | Xiaomi MiMo-V2-Flash |
|---|---|---|
| Input price | $0.07/1M tokens | $0.10/1M tokens |
| Output price | $0.14/1M tokens | $0.30/1M tokens |
| Providers |
Capabilities
| Capability | Phi-4 14B | Xiaomi MiMo-V2-Flash |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | Yes |
| Function calling | No | Yes |
| Tool use | No | No |
| Structured outputs | Yes | No |
| 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 reasoning mode: Xiaomi MiMo-V2-Flash, function calling: Xiaomi MiMo-V2-Flash, and structured outputs: Phi-4 14B. Both models share the core language-model surface, 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, Phi-4 14B lists $0.07/1M input and $0.14/1M output tokens on the cheapest tracked provider, while Xiaomi MiMo-V2-Flash lists $0.10/1M input and $0.30/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Phi-4 14B lower by about $0.07 per million blended tokens. Availability is 3 providers versus 2, so concentration risk also matters.
Choose Phi-4 14B when provider fit, lower input-token cost, and broader provider choice are central to the workload. Choose Xiaomi MiMo-V2-Flash when reasoning depth 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, Phi-4 14B or Xiaomi MiMo-V2-Flash?
Xiaomi MiMo-V2-Flash supports 262k tokens, while Phi-4 14B supports 16k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Phi-4 14B or Xiaomi MiMo-V2-Flash?
Phi-4 14B is cheaper on tracked token pricing. Phi-4 14B costs $0.07/1M input and $0.14/1M output tokens. Xiaomi MiMo-V2-Flash costs $0.10/1M input and $0.30/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Phi-4 14B or Xiaomi MiMo-V2-Flash open source?
Phi-4 14B is listed under Open Source. Xiaomi MiMo-V2-Flash is listed under MIT. 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 reasoning mode, Phi-4 14B or Xiaomi MiMo-V2-Flash?
Xiaomi MiMo-V2-Flash 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.
Which is better for function calling, Phi-4 14B or Xiaomi MiMo-V2-Flash?
Xiaomi MiMo-V2-Flash has the clearer documented function calling signal in this comparison. If function calling is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Phi-4 14B and Xiaomi MiMo-V2-Flash?
Phi-4 14B is available on OpenRouter, Fireworks AI, and Microsoft Foundry. Xiaomi MiMo-V2-Flash is available on Vercel AI Gateway and Novita AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-05-22. Data sourced from public model cards and provider documentation.