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

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

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

Both models offer a similar context window.

Claude Opus 4.5 vs GPT-5-Mini

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

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

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

FAQ

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