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Claude 3.7 Sonnet vs o1-pro

Both models are evenly matched across the benchmarks.

Anthropic · OpenAI · Updated for 2026

Which is better?

Claude 3.7 Sonnet outperforms in 1 benchmarks (GPQA), while o1-pro is better at 1 benchmark (AIME 2024). Both models are evenly matched across the benchmarks.

Based on current benchmark, pricing, and model metadata for 2026.

Choose Claude 3.7 Sonnet

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

Choose o1-pro

  • you are already invested in the OpenAI ecosystem

At a glance

The differences that matter most.

Claude 3.7 Sonnet
Anthropic
o1-pro
OpenAI
Benchmark wins
1 of 2
1 of 2
Input price
$3.00 / M
— / M
Output price
$15.00 / M
— / M
Context window
200,000
—
Released
Feb 2025
Dec 2024
License
Proprietary
Proprietary

Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

Claude 3.7 Sonnet outperforms in 1 benchmarks (GPQA), while o1-pro is better at 1 benchmark (AIME 2024).

Both models are evenly matched across the benchmarks.

Wed Aug 26 2026 • llm-stats.com

Arena Performance

Playground indexes and blind 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
OpenAI
o1-pro
Input- tokens
Output- tokens
Wed Aug 26 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude 3.7 Sonnet and o1-pro support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Claude 3.7 Sonnet

Text
Images
Audio
Video

o1-pro

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Claude 3.7 Sonnet

Proprietary

Closed source

o1-pro

Proprietary

Closed source

Release Timeline

When each model was launched

Claude 3.7 Sonnet was released on 2025-02-24, while o1-pro was released on 2024-12-17.

Claude 3.7 Sonnet is 2 months newer than o1-pro.

Claude 3.7 Sonnet

Feb 24, 2025

1.5 years ago

2mo newer
o1-pro

Dec 17, 2024

1.7 years ago

Knowledge Cutoff

When training data ends

o1-pro has a documented knowledge cutoff of 2023-09-30, while Claude 3.7 Sonnet's cutoff date is not specified.

We can confirm o1-pro's training data extends to 2023-09-30, but cannot make a direct comparison without Claude 3.7 Sonnet's cutoff date.

Claude 3.7 Sonnet

—

o1-pro

Sep 2023

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Claude 3.7 Sonnet and o1-pro side-by-side, then vote on the output you prefer.

Claude 3.7 Sonnet
✓ Preferred
o1-pro
Open in Playground

FAQ

Common questions about Claude 3.7 Sonnet vs o1-pro.

Which is better, Claude 3.7 Sonnet or o1-pro?

Both models are evenly matched across the benchmarks. Claude 3.7 Sonnet is made by Anthropic and o1-pro is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude 3.7 Sonnet compare to o1-pro 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%. o1-pro scores AIME 2024: 86.0%, GPQA: 79.0%.

What are the context window sizes for Claude 3.7 Sonnet and o1-pro?

Claude 3.7 Sonnet supports 200K tokens and o1-pro supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

Who makes Claude 3.7 Sonnet and o1-pro?

Claude 3.7 Sonnet is developed by Anthropic and o1-pro is developed by OpenAI.

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