tokevenClaude Opus 5.5 vs GPT 4o (2024-05-13)
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Opus 5.5
FlagshipGPT 4o (2024-05-13)
FlagshipQuality
Task confidence comparison
Guidance
When to use Claude Opus 5.5 vs GPT 4o (2024-05-13)
Choose Claude Opus 5.5 when...
- -Cost matters: 20% cheaper on input tokens
- -You need a larger context window (1,000K vs 128K)
Choose GPT 4o (2024-05-13) when...
- Similar performance; consider provider preference or ecosystem fit.
At scale
Cost at scale
FAQ
When should I use Claude Opus 5.5 instead of GPT 4o (2024-05-13)?
Claude Opus 5.5 and GPT 4o (2024-05-13) perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Is GPT 4o (2024-05-13) cheaper than Claude Opus 5.5?
GPT 4o (2024-05-13) input costs $5.00/MTok, which is 25% more than Claude Opus 5.5 at $4.00/MTok.
What are the context window sizes for Claude Opus 5.5 and GPT 4o (2024-05-13)?
Claude Opus 5.5 has a 1,000K token context window. GPT 4o (2024-05-13) has a 128K token context window.
Go deeper on either model
Per-call cost calculators, provider lineups, and price history for both models on this page.
Other comparisons
How Claude Opus 5.5 and GPT 4o (2024-05-13) stack up against the rest of the field.
Track your real costs
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.