Is GPT-5-Mini or Claude Opus 4.5 cheaper?

GPT-5-Mini is cheaper on output tokens ($0.29 vs $3.57 per 1M).

Which has the larger context window, GPT-5-Mini or Claude Opus 4.5?

Both models offer a similar context window.

GPT-5-Mini vs Claude Opus 4.5

GPT-5-Mini is cheaper on output tokens. Choose GPT-5-Mini or Claude Opus 4.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-5-Mini	Claude Opus 4.5
Provider	QiHang	QiHang
Input / 1M tokens	$0.04	$0.71
Output / 1M tokens	$0.29	$3.57
Context window	200K	200K
Parameters	—	—
Open weights	No	No
Released	Sep 2025	Nov 2025

GPT-5-Mini details →Claude Opus 4.5 details →

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.