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OpenAI: GPT-5.5 is a multimodal AI model by OpenAI. It features a 1.1M token context window, $5.00/1M input tokens pricing.
| Input (Prompt) | $5.00 |
| Output (Completion) | $30 |
| Cache Read | $0.50 |
| Cache Write | Free |
| Context Length | 1.1M |
| Max Output Tokens | 128K |
| Input Modalities | File + Image + Text |
| Output Modalities | Text |
| Tokenizer | GPT |
OpenAI: GPT-5.5 costs $5.00/1M input tokens and $30/1M output tokens.
OpenAI: GPT-5.5 supports a context window of 1.1M tokens, which is approximately 525 pages of text.
No, OpenAI: GPT-5.5 is a paid model. Check the free models page for zero-cost alternatives.
See the alternatives section above for models with similar capabilities. You can also compare OpenAI: GPT-5.5 head-to-head with any model on our comparison page.
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