Is GPT-5.6 Sol or Claude Opus 4.8 cheaper?

GPT-5.6 Sol is cheaper on output tokens ($20.00 vs $25.00 per 1M).

Which has the larger context window, GPT-5.6 Sol or Claude Opus 4.8?

GPT-5.6 Sol has the larger context window (1.1M tokens).

GPT-5.6 Sol vs Claude Opus 4.8

GPT-5.6 Sol is cheaper on output tokens, while GPT-5.6 Sol offers a larger context window. Choose GPT-5.6 Sol or Claude Opus 4.8 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-5.6 Sol	Claude Opus 4.8
Provider	CrossModel	CrossModel
Input / 1M tokens	$4.00	$5.00
Output / 1M tokens	$20.00	$25.00
Context window	1.1M	1M
Parameters	—	—
Open weights	No	No
Released	Jul 2026	May 2026

GPT-5.6 Sol 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.