Back to models
Claude Opus 5.5 vs GPT-5.5 Pro
Claude Opus 5.5 and GPT-5.5 Pro: current price, context, max output, and supported operations.
Pricing comparison
| Claude Opus 5.5 | GPT-5.5 Pro | |
|---|---|---|
| Model maker | Anthropic | OpenAI |
| Delivery availability | Available | Available |
| Context window | 1M | 1.05M |
| Max output | 128K | 128K |
| Official price | Input$4.00per 1M tokensOutput$20.00per 1M tokens | Input$30.00per 1M tokensOutput$180.00per 1M tokens |
| Verified price | Input$1.20per 1M tokensOutput$6.00per 1M tokens | — |
| Model performance |
| Collecting data |
| Capabilities | JSON modePrompt CacheReasoningTool useVision | CodeJSON modeReasoningTool useVision |
Summary
- Claude Opus 5.5: Input $1.20 / Output $6.00 per 1M tokens; GPT-5.5 Pro: —. Rates depend on the billing unit, specification, and usage. Compare matching conditions in the model's detailed pricing; a single rate does not determine the total cost.
FAQ
Which is cheaper, Claude Opus 5.5 or GPT-5.5 Pro?
Claude Opus 5.5: Input $1.20 / Output $6.00 per 1M tokens; GPT-5.5 Pro: —. Rates depend on the billing unit, specification, and usage. Compare matching conditions in the model's detailed pricing; a single rate does not determine the total cost.
What are the key differences between Claude Opus 5.5 and GPT-5.5 Pro?
Claude Opus 5.5: Prompt Cache. GPT-5.5 Pro: Code