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Claude 3.7 Sonnet vs Phi 4 Reasoning Plus

Claude 3.7 Sonnet leads the LLM Stats Score 24.2 to 15.3.

Anthropic · Microsoft · Updated for 2026

Which is better?

Claude 3.7 Sonnet leads the overall LLM Stats Score 24.2 to 15.3, ranking #158 overall.

The models split the 4 individual benchmarks reported for both models evenly.

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

Choose Claude 3.7 Sonnet

  • overall performance matters — it scores 24.2 and ranks #158 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes

Choose Phi 4 Reasoning Plus

  • you want the most recent training data — it shipped Apr 2025
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Claude 3.7 Sonnet
Anthropic
Phi 4 Reasoning Plus
Microsoft
Core performance indexes
LLM Stats Score
24.2
#158
15.3
#218
Reasoning
23.3
#156
15.6
#212
Coding
14.0
#127
5.8
#187
Cost, coverage & limits
Benchmark wins
2 of 4
2 of 4
Input price
$3.00 / M
— / M
Output price
$15.00 / M
— / M
Context window
200,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Claude 3.7 Sonnet
Phi 4 Reasoning Plus
Math
16.7#193
18.3#173
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

11 reported for Claude 3.7 Sonnet · 11 for Phi 4 Reasoning Plus

4 shared

Claude 3.7 Sonnet outperforms in 2 benchmarks (GPQA, IFEval), while Phi 4 Reasoning Plus is better at 2 benchmarks (AIME 2024, AIME 2025).

Both models are evenly matched across the benchmarks.

Thu Sep 03 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Claude 3.7 Sonnet specifies input context (200,000 tokens). Only Claude 3.7 Sonnet specifies output context (128,000 tokens).

Anthropic
Claude 3.7 Sonnet
Input200,000 tokens
Output128,000 tokens
Microsoft
Phi 4 Reasoning Plus
Input- tokens
Output- tokens
Thu Sep 03 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Claude 3.7 Sonnet supports multimodal inputs, whereas Phi 4 Reasoning Plus does not.

Claude 3.7 Sonnet can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude 3.7 Sonnet

Text
Images
Audio
Video

Phi 4 Reasoning Plus

Text
Images
Audio
Video

License

Usage and distribution terms

Claude 3.7 Sonnet is licensed under a proprietary license, while Phi 4 Reasoning Plus uses MIT.

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

Claude 3.7 Sonnet

Proprietary

Closed source

Phi 4 Reasoning Plus

MIT

Open weights

Release Timeline

When each model was launched

Claude 3.7 Sonnet was released on 2025-02-24, while Phi 4 Reasoning Plus was released on 2025-04-30.

Phi 4 Reasoning Plus is 2 months newer than Claude 3.7 Sonnet.

Claude 3.7 Sonnet

Feb 24, 2025

1.5 years ago

Phi 4 Reasoning Plus

Apr 30, 2025

1.3 years ago

2mo newer

Knowledge Cutoff

When training data ends

Phi 4 Reasoning Plus has a documented knowledge cutoff of 2025-03-01, while Claude 3.7 Sonnet's cutoff date is not specified.

We can confirm Phi 4 Reasoning Plus's training data extends to 2025-03-01, but cannot make a direct comparison without Claude 3.7 Sonnet's cutoff date.

Claude 3.7 Sonnet

—

Phi 4 Reasoning Plus

Mar 2025

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Claude 3.7 Sonnet and Phi 4 Reasoning Plus side-by-side, then vote on the output you prefer.

Claude 3.7 Sonnet
✓ Preferred
Phi 4 Reasoning Plus
Open in Playground

FAQ

Common questions about Claude 3.7 Sonnet vs Phi 4 Reasoning Plus.

Which is better, Claude 3.7 Sonnet or Phi 4 Reasoning Plus?

Claude 3.7 Sonnet leads the LLM Stats Score 24.2 to 15.3. Claude 3.7 Sonnet is made by Anthropic 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 Claude 3.7 Sonnet compare to Phi 4 Reasoning Plus in benchmarks?

Claude 3.7 Sonnet scores MATH-500: 96.2%, IFEval: 93.2%, MMMLU: 86.1%, GPQA: 84.8%, TAU-bench Retail: 81.2%. Phi 4 Reasoning Plus scores FlenQA: 97.9%, HumanEval+: 92.3%, IFEval: 84.9%, OmniMath: 81.9%, AIME 2024: 81.3%.

What are the context window sizes for Claude 3.7 Sonnet and Phi 4 Reasoning Plus?

Claude 3.7 Sonnet supports 200K tokens and Phi 4 Reasoning Plus supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude 3.7 Sonnet and Phi 4 Reasoning Plus?

Key differences include LLM Stats Score (24.2 vs 15.3), multimodal support (yes vs no), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude 3.7 Sonnet and Phi 4 Reasoning Plus?

Claude 3.7 Sonnet is developed by Anthropic and Phi 4 Reasoning Plus is developed by Microsoft.

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