Is GLM 5 or GPT-5.2-Pro cheaper?

GLM 5 is cheaper on output tokens ($2.60 vs $168.00 per 1M).

Which has the larger context window, GLM 5 or GPT-5.2-Pro?

GPT-5.2-Pro has the larger context window (400K tokens).

GLM 5 vs GPT-5.2-Pro

GLM 5 is cheaper on output tokens, while GPT-5.2-Pro offers a larger context window. Choose GLM 5 or GPT-5.2-Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM 5	GPT-5.2-Pro
Provider	ZenMux	ZenMux
Input / 1M tokens	$0.58	$21.00
Output / 1M tokens	$2.60	$168.00
Context window	200K	400K
Parameters	744B	—
Open weights	Yes	No
Released	Feb 2026	Dec 2025

GLM 5 details →GPT-5.2-Pro details →

FAQ

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