Detailed comparison of capabilities, features, and performance.
| Feature | Claude 3.5 Haiku | GPT-5.4 |
|---|---|---|
| AI Lab | Anthropic | OpenAI |
| Context Size | 204,800 tokens | 1,050,000 tokens |
| Max Output Size | 4,096 tokens | 128,000 tokens |
| Frontier Model | No | Yes |
| Vision Support | No | Yes |
| Description | The latest Haiku 3.5 model from Anthropic | OpenAI's frontier model for complex professional work. Features 1.05M context window, 128k output tokens, and reasoning token support. Reasoning.effort supports: none (default), low, medium, high and xhigh. |
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