 ChatGPT-4o |  Claude Sonnet 4 | |
|---|---|---|
Model Provider The organization behind this AI's development | OpenAI | Anthropic |
Input Context Window Maximum input tokens this model can process at once | 128K tokens | 200K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 16.4K tokens | 64K tokens |
Release Date When this model first became publicly available | August 14, 2024 1 year ago August 14th, 2024 | May 22, 2025 3 months ago May 22nd, 2025 |
ChatGPT-4o | Claude Sonnet 4 | |
|---|---|---|
Input Types Supported input formats | 📝Text🖼️Image | 🖼️Image📝Text📁File |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | GPT | Claude |
Key Features Advanced capabilities | Function Calling✓Structured OutputReasoning Mode✓Content Moderation | ✓Function CallingStructured Output✓Reasoning ModeContent Moderation |
| ChatGPT-4o | Claude Sonnet 4 | |
|---|---|---|
Input Token Cost Cost per million input tokens | $5.00 per million tokens | $3.00 per million tokens |
Output Token Cost Cost per million outut tokens | $15.00 per million tokens | $15.00 per million tokens |
| ChatGPT-4o | Claude Sonnet 4 | |
|---|---|---|
MMLU Measures knowledge across 57 subjects like law, math, history, and science | Benchmark not available. | Benchmark not available. |
MMMU Measures understanding of combined text and images across various domains | Benchmark not available. | Benchmark not available. |
HellaSwag Measures common sense reasoning by having models complete sentences about everyday situations | Benchmark not available. | Benchmark not available. |
ChatGPT-4o by OpenAI understands both text and images, generates structured data. It can handle standard conversations with its 128K token context window. Premium pricing at $5.00/M input and $15.00/M output tokens. Includes built-in content moderation for safer outputs. Released August 14th, 2024.Claude Sonnet 4 by Anthropic understands both text and images, can use external tools and APIs, offers advanced reasoning. It can handle standard conversations with its 200K token context window. Premium pricing at $3.00/M input and $15.00/M output tokens. Released May 22nd, 2025.Compare your models with top performers across different categories
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