Claude Opus 4.5 vs GPT-5 mini

GPT-5 mini costs 93% less at typical usage ($0.69 vs $10.0 per 1M tokens). Claude Opus 4.5 scores higher on 11 of 11 tasks.

Spec	Claude Opus 4.5	GPT-5 mini
Input /1M	$5.00	$0.25
Output /1M	$25.0	$2.00
Typical /1M	$10.0	$0.69
Context window	200k	400k
Speed	Measured	Fast
Privacy	Strong	Standard
Open weights	No	No

Claude Opus 4.5

Steady since we started tracking (Jul 13, 2026)

GPT-5 mini

Steady since we started tracking (Jul 13, 2026)

Quality by task

Coding99/85

Agents99/83

Reasoning98/86

Writing96/85

Chat92/88

Classify90/85

Extract92/85

Summarize94/86

Translate90/86

Vision93/87

General96/85

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Prices are list $/1M tokens, hand-maintained from public provider pricing. Task scores are benchmark-informed 0-100 estimates, not gospel — validate on your own evals before moving production traffic. Not affiliated with any model provider.