Comparison · Updated Oct 28, 2026
Claude 3.7 Sonnet vs GPT-4o
Claude 3.7 Sonnet adds an optional extended-thinking mode and a larger context window; GPT-4o is natively multimodal with audio input.
At a glance
| Spec | Claude 3.7 Sonnet | GPT-4o |
|---|---|---|
| Released | Feb 24, 2025 | May 13, 2024 |
| Context window | 200K tokens | 128K tokens |
| Licence | Closed / API | Closed / API |
| Inputs | text, image | text, image, audio |
| Public API | Yes | Yes |
Model A
Claude 3.7 Sonnet
Anthropic's first hybrid reasoning model, offering both standard responses and an extended thinking mode. Launched alongside Claude Code.
Feb 24, 2025
Model B
GPT-4o
Omni-model unifying text, vision and audio in a single network with realtime capabilities.
May 13, 2024
Differences
| Attribute | Claude 3.7 Sonnet | GPT-4o |
|---|---|---|
| Context window | 200K | 128K |
| Reasoning mode | Optional extended thinking | No |
| Audio input | No | Yes |
| Released | Feb 2025 | May 2024 |