GPT-5.5 vs Claude Opus 4.8

A side-by-side comparison of GPT-5.5 and Claude Opus 4.8 — intelligence, context, capabilities, and price.

Spec
GPT-5.5 logoGPT-5.5
Claude Opus 4.8 logoClaude Opus 4.8
Context window256K500K
Streaming
Reasoning
Tool use
Web search
Vision (image input)
Document input
Video
Audio
GPT-5.5 pricing
  • Input$0.05 / 1M tokens
  • Output$0.3 / 1M tokens
View GPT-5.5details →
Claude Opus 4.8 pricing
  • Input$0.05 / 1M tokens
  • Output$0.25 / 1M tokens
View Claude Opus 4.8details →
Try both on TryAI Browse all models

GPT-5.5 vs Claude Opus 4.8: FAQ

Is GPT-5.5 better than Claude Opus 4.8?
OpenAI flagship. AA Intelligence Index v4.1 of 55 — the strongest all-round frontier model. Frontier all-rounder. Leads SWE-bench Pro (69%) at AA Intelligence Index v4.1 of 56 — the value pick just below Fable 5. The best choice depends on your workload — compare context window, capabilities, and price above, or try both on TryAI.
Which is cheaper, GPT-5.5 or Claude Opus 4.8?
See the pricing rows above for live per-token or per-generation costs. TryAI bills both from one pay-as-you-go balance.