Claude 3 Sonnet vs GPT-4o Comparison

Comparing Claude 3 Sonnet and GPT-4o across benchmarks, pricing, and capabilities.

Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Claude 3 Sonnet outperforms in 0 benchmarks, while GPT-4o is better at 3 benchmarks (GPQA, MMLU, MMLU-Pro).

GPT-4o significantly outperforms across most benchmarks.

Wed Mar 18 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Cost data unavailable.

Lowest available price from all providers
Wed Mar 18 2026 • llm-stats.com
Anthropic
Claude 3 Sonnet
Input tokens$0.00
Output tokens$0.00
Best providerUnknown Organization
OpenAI
GPT-4o
Input tokens$2.50
Output tokens$10.00
Best providerAzure
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Context Window

Maximum input and output token capacity

Only GPT-4o specifies input context (128,000 tokens). Only GPT-4o specifies output context (16,384 tokens).

Anthropic
Claude 3 Sonnet
Input- tokens
Output- tokens
OpenAI
GPT-4o
Input128,000 tokens
Output16,384 tokens
Wed Mar 18 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude 3 Sonnet and GPT-4o support multimodal inputs.

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

Claude 3 Sonnet

Text
Images
Audio
Video

GPT-4o

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 Sonnet

Proprietary

Closed source

GPT-4o

Proprietary

Closed source

Release Timeline

When each model was launched

Claude 3 Sonnet was released on 2024-02-29, while GPT-4o was released on 2024-08-06.

GPT-4o is 5 months newer than Claude 3 Sonnet.

Claude 3 Sonnet

Feb 29, 2024

2.0 years ago

GPT-4o

Aug 6, 2024

1.6 years ago

5mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

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Key Takeaways

Larger context window (128,000 tokens)
Higher GPQA score (70.1% vs 40.4%)
Higher MMLU score (85.7% vs 79.0%)
Higher MMLU-Pro score (74.7% vs 56.8%)

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude 3 Sonnet
OpenAI
GPT-4o