Model Comparison

MiMo-V2.5-Pro vs Phi 4 Mini ReasoningWhich is better in 2026?

Both models are evenly matched across the benchmarks.

Verdict: MiMo-V2.5-Pro vs Phi 4 Mini Reasoning — which is better?

MiMo-V2.5-Pro (by Xiaomi) and Phi 4 Mini Reasoning (by Microsoft) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

MiMo-V2.5-Pro outperforms in 1 benchmarks (GPQA), while Phi 4 Mini Reasoning is better at 1 benchmark (AIME). Both models are evenly matched across the benchmarks.

Choose MiMo-V2.5-Pro if…

  • you want the most recent training data — it shipped Apr 2026

Choose Phi 4 Mini Reasoning if…

  • you are already invested in the Microsoft ecosystem

Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

MiMo-V2.5-Pro outperforms in 1 benchmarks (GPQA), while Phi 4 Mini Reasoning is better at 1 benchmark (AIME).

Both models are evenly matched across the benchmarks.

Wed Jul 29 2026 • llm-stats.com

Arena Performance

Human preference votes

Model Size

Parameter count comparison

1019.4B diff

MiMo-V2.5-Pro has 1019.4B more parameters than Phi 4 Mini Reasoning, making it 26827.5% larger.

Xiaomi
MiMo-V2.5-Pro
1.0Tparameters
Microsoft
Phi 4 Mini Reasoning
3.8Bparameters
1023.2B
MiMo-V2.5-Pro
3.8B
Phi 4 Mini Reasoning

Context Window

Maximum input and output token capacity

Only MiMo-V2.5-Pro specifies input context (1,048,576 tokens). Only MiMo-V2.5-Pro specifies output context (131,072 tokens).

Xiaomi
MiMo-V2.5-Pro
Input1,048,576 tokens
Output131,072 tokens
Microsoft
Phi 4 Mini Reasoning
Input- tokens
Output- tokens
Wed Jul 29 2026 • llm-stats.com

License

Usage and distribution terms

Both models are licensed under MIT.

Both models share the same licensing terms, providing consistent usage rights.

MiMo-V2.5-Pro

MIT

Open weights

Phi 4 Mini Reasoning

MIT

Open weights

Release Timeline

When each model was launched

MiMo-V2.5-Pro was released on 2026-04-27, while Phi 4 Mini Reasoning was released on 2025-04-30.

MiMo-V2.5-Pro is 12 months newer than Phi 4 Mini Reasoning.

MiMo-V2.5-Pro

Apr 27, 2026

3 months ago

12mo newer
Phi 4 Mini Reasoning

Apr 30, 2025

1.2 years ago

Knowledge Cutoff

When training data ends

Phi 4 Mini Reasoning has a documented knowledge cutoff of 2025-02-01, while MiMo-V2.5-Pro's cutoff date is not specified.

We can confirm Phi 4 Mini Reasoning's training data extends to 2025-02-01, but cannot make a direct comparison without MiMo-V2.5-Pro's cutoff date.

MiMo-V2.5-Pro

—

Phi 4 Mini Reasoning

Feb 2025

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Xiaomi
Larger context window (1,048,576 tokens)
Higher GPQA score (66.7% vs 52.0%)
Microsoft
Higher AIME score (57.5% vs 37.3%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against MiMo-V2.5-Pro and Phi 4 Mini Reasoning side-by-side, then vote on the output you prefer.

MiMo-V2.5-Pro
✓ Preferred
Phi 4 Mini Reasoning
Open in Playground
AI Model Comparison Table
Feature
Xiaomi
MiMo-V2.5-Pro
Microsoft
Phi 4 Mini Reasoning

FAQ

Common questions about MiMo-V2.5-Pro vs Phi 4 Mini Reasoning.

Which is better, MiMo-V2.5-Pro or Phi 4 Mini Reasoning?

Both models are evenly matched across the benchmarks. MiMo-V2.5-Pro is made by Xiaomi and Phi 4 Mini Reasoning is made by Microsoft. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does MiMo-V2.5-Pro compare to Phi 4 Mini Reasoning in benchmarks?

MiMo-V2.5-Pro scores FrontierSWE (Impl.): 100.0%, GSM8k: 99.6%, ARC-C: 97.2%, MMLU-Redux: 92.8%, C-Eval: 91.5%. Phi 4 Mini Reasoning scores MATH-500: 94.6%, AIME: 57.5%, GPQA: 52.0%.

What are the context window sizes for MiMo-V2.5-Pro and Phi 4 Mini Reasoning?

MiMo-V2.5-Pro supports 1.0M tokens and Phi 4 Mini Reasoning supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

Who makes MiMo-V2.5-Pro and Phi 4 Mini Reasoning?

MiMo-V2.5-Pro is developed by Xiaomi and Phi 4 Mini Reasoning is developed by Microsoft.

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