Is GPT-5.1 or GLM-4.7 cheaper?

GLM-4.7 is cheaper on output tokens ($2.20 vs $8.50 per 1M).

Which has the larger context window, GPT-5.1 or GLM-4.7?

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

GPT-5.1 vs GLM-4.7

GLM-4.7 is cheaper on output tokens, while GPT-5.1 offers a larger context window. Choose GPT-5.1 or GLM-4.7 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-5.1	GLM-4.7
Provider	OpenCode Zen	OpenCode Zen
Input / 1M tokens	$1.07	$0.60
Output / 1M tokens	$8.50	$2.20
Context window	400K	205K
Parameters	—	358B
Open weights	No	Yes
Released	Nov 2025	Dec 2025

GPT-5.1 details →GLM-4.7 details →

FAQ

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