Model Comparison

GLM-4.5-Air vs Phi 4 MiniWhich is better in 2026?

GLM-4.5-Air significantly outperforms across most benchmarks.

Verdict: GLM-4.5-Air vs Phi 4 Mini — which is better?

GLM-4.5-Air (by Zhipu AI) and Phi 4 Mini (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.

GLM-4.5-Air outperforms in 2 benchmarks (GPQA, MMLU-Pro), while Phi 4 Mini is better at 0 benchmarks. GLM-4.5-Air significantly outperforms across most benchmarks.

Choose GLM-4.5-Air if…

  • you want the strongest raw capability — it leads on 2 of 2 shared benchmarks
  • you want the most recent training data — it shipped Jul 2025

Choose Phi 4 Mini if…

  • you are already invested in the Microsoft ecosystem

Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

GLM-4.5-Air outperforms in 2 benchmarks (GPQA, MMLU-Pro), while Phi 4 Mini is better at 0 benchmarks.

GLM-4.5-Air significantly outperforms across most benchmarks.

Mon Jul 13 2026 • llm-stats.com

Arena Performance

Human preference votes

Model Size

Parameter count comparison

102.2B diff

GLM-4.5-Air has 102.2B more parameters than Phi 4 Mini, making it 2660.4% larger.

Zhipu AI
GLM-4.5-Air
106.0Bparameters
Microsoft
Phi 4 Mini
3.8Bparameters
106.0B
GLM-4.5-Air
3.8B
Phi 4 Mini

License

Usage and distribution terms

Both models are licensed under MIT.

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

GLM-4.5-Air

MIT

Open weights

Phi 4 Mini

MIT

Open weights

Release Timeline

When each model was launched

GLM-4.5-Air was released on 2025-07-28, while Phi 4 Mini was released on 2025-02-01.

GLM-4.5-Air is 6 months newer than Phi 4 Mini.

GLM-4.5-Air

Jul 28, 2025

11 months ago

5mo newer
Phi 4 Mini

Feb 1, 2025

1.4 years ago

Knowledge Cutoff

When training data ends

Phi 4 Mini has a documented knowledge cutoff of 2024-06-01, while GLM-4.5-Air's cutoff date is not specified.

We can confirm Phi 4 Mini's training data extends to 2024-06-01, but cannot make a direct comparison without GLM-4.5-Air's cutoff date.

GLM-4.5-Air

—

Phi 4 Mini

Jun 2024

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Zhipu AI
Higher GPQA score (75.0% vs 25.2%)
Higher MMLU-Pro score (81.4% vs 52.8%)
Microsoft

No standout differentiators in the data we have for this pair.

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against GLM-4.5-Air and Phi 4 Mini side-by-side, then vote on the output you prefer.

GLM-4.5-Air
✓ Preferred
Phi 4 Mini
Open in Playground
AI Model Comparison Table
Feature
Zhipu AI
GLM-4.5-Air
Microsoft
Phi 4 Mini

FAQ

Common questions about GLM-4.5-Air vs Phi 4 Mini.

Which is better, GLM-4.5-Air or Phi 4 Mini?

GLM-4.5-Air significantly outperforms across most benchmarks. GLM-4.5-Air is made by Zhipu AI and Phi 4 Mini is made by Microsoft. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does GLM-4.5-Air compare to Phi 4 Mini in benchmarks?

GLM-4.5-Air scores MATH-500: 98.1%, AIME 2024: 89.4%, MMLU-Pro: 81.4%, TAU-bench Retail: 77.9%, BFCL-v3: 76.4%. Phi 4 Mini scores GSM8k: 88.6%, ARC-C: 83.7%, BoolQ: 81.2%, OpenBookQA: 79.2%, PIQA: 77.6%.

Who makes GLM-4.5-Air and Phi 4 Mini?

GLM-4.5-Air is developed by Zhipu AI and Phi 4 Mini is developed by Microsoft.

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