Is claude-opus-4-5-20251101 or gpt-5.1 cheaper?

gpt-5.1 is cheaper on output tokens ($10.00 vs $25.00 per 1M).

Which has the larger context window, claude-opus-4-5-20251101 or gpt-5.1?

gpt-5.1 has the larger context window (400K tokens).

claude-opus-4-5-20251101 vs gpt-5.1

gpt-5.1 is cheaper on output tokens, while gpt-5.1 offers a larger context window. Choose claude-opus-4-5-20251101 or gpt-5.1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	claude-opus-4-5-20251101	gpt-5.1
Provider	302.AI	302.AI
Input / 1M tokens	$5.00	$1.25
Output / 1M tokens	$25.00	$10.00
Context window	200K	400K
Parameters	—	—
Open weights	No	No
Released	Nov 2025	Nov 2025

claude-opus-4-5-20251101 details →gpt-5.1 details →

FAQ

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