GPT-5.5 Pro vs Claude Opus 4.8

Per-platform pricing

Each row retains its own currency, unit, region, and source status. Rates with different scopes are not ranked against each other.

Frequently asked questions

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

Claude Opus 4.8's stored input rate is 83% lower than GPT-5.5 Pro's ($5.00 vs $30.00 per 1M Tokens; matched scope: 1M Tokens · global · llm). Claude Opus 4.8's stored output rate is 86% lower than GPT-5.5 Pro's ($25.00 vs $180.00 per 1M Tokens; matched scope: 1M Tokens · global · llm).

Where does this comparison data come from?

This page uses stored price records. A provider or platform source is linked where the record contains one; records without a source link are explicitly marked. Record timestamps show database updates, not independent verification.

What does this comparison include?

It compares a price field only when both records have the same currency, billing unit, region, and modality. It does not normalize taxes, volume discounts, availability, latency, quality, or provider-specific terms.