openai/gpt-5.5
GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...
| Provider | In $/M | Out $/M | Context | Uptime |
|---|---|---|---|---|
| OpenAI | $5.00 | $30.00 | 1.1M | 99.2% |
| Azure | $5.00 | $30.00 | 1.1M | 99.9% |
| Azure | $5.50 | $33.00 | 1.1M | — |
GPT-5.5 costs $5.00 per million input tokens and $30.00 per million output tokens via OpenRouter, making it 275th cheapest of 298 paid models.
GPT-5.5 scores 56.7 on the Artificial Analysis Intelligence Index, ranking 5th of 178 benchmarked models, with a GPQA Diamond score of 93%.
GPT-5.5 generates around 36 tokens per second with 2.8s time-to-first-token (p50), the 213th fastest tracked model.
GPT-5.5 supports a 1.1M-token context window and can output up to 128K tokens. It accepts file, image, text input.