GPT-5 vs Claude Opus 4.8

OpenAI · Anthropic — Interactive pricing comparison

Input tokens per request4K

Output tokens per request2K

Requests per day100

OpenAI

Input$1.25/1M

Output$10/1M

Cache read$0.13/1M

Cost per request$0.025

Monthly estimate$75.00

Max input272K

Max output128K

Anthropic

Input$5/1M

Output$25/1M

Cache read$0.5/1M

Cost per request$0.070

Monthly estimate$210

Max input1.0M

Max output128K

GPT-5 is 64% cheaper at this usage

Claude Opus 4.8 has a larger context window

Capabilities