Is GPT-5.2 or GLM-4.5-Flash cheaper?

GLM-4.5-Flash is cheaper on output tokens ($0.00 vs $8.40 per 1M).

Which has the larger context window, GPT-5.2 or GLM-4.5-Flash?

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

GPT-5.2 vs GLM-4.5-Flash

GLM-4.5-Flash is cheaper on output tokens, while GPT-5.2 offers a larger context window. Choose GPT-5.2 or GLM-4.5-Flash based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-5.2	GLM-4.5-Flash
Provider	UnoRouter	UnoRouter
Input / 1M tokens	$1.05	$0.00
Output / 1M tokens	$8.40	$0.00
Context window	400K	131K
Parameters	—	—
Open weights	No	No
Released	Dec 2025	Jul 2025

GPT-5.2 details →GLM-4.5-Flash details →

FAQ

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