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Magistral Small 2506 vs Phi 4 Reasoning Plus

Magistral Small 2506 and Phi 4 Reasoning Plus are closely matched at 10.7 and 15.0 on the LLM Stats Score.

Mistral AI · Microsoft · Updated for 2026

Which is better?

Magistral Small 2506 and Phi 4 Reasoning Plus are closely matched on the overall LLM Stats Score at 10.7 and 15.0.

In the 4 individual benchmarks reported for both models, Phi 4 Reasoning Plus wins 4; this is a narrower head-to-head signal than the composite indexes.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Magistral Small 2506

  • you want the most recent training data — it shipped Jun 2025

Choose Phi 4 Reasoning Plus

  • you value its reported benchmark strengths — it wins 4 of 4 exact shared results

At a glance

The differences that matter most.

Core performance indexes
10.7
#277
15.0
#247
10.9
#275
15.4
#240
5.2
#215
5.6
#210
Cost, coverage & limits
Benchmark wins
0 of 4
4 of 4
Input price
— / M
— / M
Output price
— / M
— / M
Context window
—
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Magistral Small 2506
Phi 4 Reasoning Plus
8.5#265
18.3#188
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

4 reported for Magistral Small 2506 · 11 for Phi 4 Reasoning Plus

4 shared

Magistral Small 2506 outperforms in 0 benchmarks, while Phi 4 Reasoning Plus is better at 4 benchmarks (AIME 2024, AIME 2025, GPQA, LiveCodeBench).

Phi 4 Reasoning Plus significantly outperforms across most benchmarks.

Wed Oct 14 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Model Size

Parameter count comparison

10.0B diff

Magistral Small 2506 has 10.0B more parameters than Phi 4 Reasoning Plus, making it 71.4% larger.

Mistral AI
Magistral Small 2506
24.0Bparameters
Microsoft
Phi 4 Reasoning Plus
14.0Bparameters
24.0B
Magistral Small 2506
14.0B
Phi 4 Reasoning Plus

License

Usage and distribution terms

Magistral Small 2506 is licensed under Apache 2.0, while Phi 4 Reasoning Plus uses MIT.

License differences may affect how you can use these models in commercial or open-source projects.

Magistral Small 2506

Apache 2.0

Open weights

Phi 4 Reasoning Plus

MIT

Open weights

Release Timeline

When each model was launched

Magistral Small 2506 was released on 2025-06-10, while Phi 4 Reasoning Plus was released on 2025-04-30.

Magistral Small 2506 is 1 month newer than Phi 4 Reasoning Plus.

Magistral Small 2506

Jun 10, 2025

1.3 years ago

1mo newer
Phi 4 Reasoning Plus

Apr 30, 2025

1.5 years ago

Knowledge Cutoff

When training data ends

Magistral Small 2506 has a knowledge cutoff of 2025-06-01, while Phi 4 Reasoning Plus has a cutoff of 2025-03-01.

Magistral Small 2506 has more recent training data (up to 2025-06-01), making it potentially better informed about events through that date compared to Phi 4 Reasoning Plus (2025-03-01).

Magistral Small 2506

Jun 2025

3 mo newer
Phi 4 Reasoning Plus

Mar 2025

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Magistral Small 2506 and Phi 4 Reasoning Plus side-by-side, then vote on the output you prefer.

Magistral Small 2506
✓ Preferred
Phi 4 Reasoning Plus
Open in Playground

FAQ

Common questions about Magistral Small 2506 vs Phi 4 Reasoning Plus.

Which is better, Magistral Small 2506 or Phi 4 Reasoning Plus?

Magistral Small 2506 and Phi 4 Reasoning Plus are closely matched on the LLM Stats Score at 10.7 and 15.0. Magistral Small 2506 is made by Mistral AI and Phi 4 Reasoning Plus is made by Microsoft. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Magistral Small 2506 compare to Phi 4 Reasoning Plus in benchmarks?

Magistral Small 2506 scores AIME 2024: 70.7%, GPQA: 68.2%, AIME 2025: 62.8%, LiveCodeBench: 51.3%. Phi 4 Reasoning Plus scores FlenQA: 97.9%, HumanEval+: 92.3%, IFEval: 84.9%, OmniMath: 81.9%, AIME 2024: 81.3%.

What are the main differences between Magistral Small 2506 and Phi 4 Reasoning Plus?

Key differences include LLM Stats Score (10.7 vs 15.0), licensing (Apache 2.0 vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Magistral Small 2506 and Phi 4 Reasoning Plus?

Magistral Small 2506 is developed by Mistral AI and Phi 4 Reasoning Plus is developed by Microsoft.