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GPT-5.5 Pro vs Claude Opus 4.8

GPT-5.5 Pro and Claude Opus 4.8: current price, context, max output, and supported operations.

Pricing comparison

GPT-5.5 ProClaude Opus 4.8
Model makerOpenAIAnthropic
Delivery availabilityAvailableAvailable
Context window1.05M1M
Max output128K128K
Official price
Input$30.00per 1M tokensOutput$180.00per 1M tokens
Input$5.00per 1M tokensOutput$25.00per 1M tokens
Verified price—
Input$1.50per 1M tokensOutput$7.50per 1M tokens
Model performanceCollecting data
30-day success rate
100.0%
Capabilities
CodeJSON modeReasoningTool useVision
JSON modePrompt CacheReasoningTool useVision

Summary

  • GPT-5.5 Pro: —; Claude Opus 4.8: Input $1.50 / Output $7.50 per 1M tokens. 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.
GPT-5.5 Pro
GPT-5
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Claude Opus 4.8
Claude 4
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FAQ

Which is cheaper, GPT-5.5 Pro or Claude Opus 4.8?

GPT-5.5 Pro: —; Claude Opus 4.8: Input $1.50 / Output $7.50 per 1M tokens. 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 GPT-5.5 Pro and Claude Opus 4.8?

GPT-5.5 Pro: Code. Claude Opus 4.8: Prompt Cache