Is GPT-5.4 nano or Claude Opus 4.8 cheaper?

GPT-5.4 nano is cheaper on output tokens ($1.25 vs $25.00 per 1M).

Which has the larger context window, GPT-5.4 nano or Claude Opus 4.8?

Claude Opus 4.8 has the larger context window (1M tokens).

GPT-5.4 nano vs Claude Opus 4.8

GPT-5.4 nano is cheaper on output tokens, while Claude Opus 4.8 offers a larger context window. Choose GPT-5.4 nano or Claude Opus 4.8 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-5.4 nano	Claude Opus 4.8
Provider	CrossModel	CrossModel
Input / 1M tokens	$0.20	$5.00
Output / 1M tokens	$1.25	$25.00
Context window	400K	1M
Parameters	—	—
Open weights	No	No
Released	Mar 2026	May 2026

GPT-5.4 nano details →Claude Opus 4.8 details →

FAQ

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