Is OpenAI o4-mini high or GLM 4.5 cheaper?

GLM 4.5 is cheaper on output tokens ($1.30 vs $4.40 per 1M).

Which has the larger context window, OpenAI o4-mini high or GLM 4.5?

OpenAI o4-mini high has the larger context window (200K tokens).

OpenAI o4-mini high vs GLM 4.5

GLM 4.5 is cheaper on output tokens, while OpenAI o4-mini high offers a larger context window. Choose OpenAI o4-mini high or GLM 4.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	OpenAI o4-mini high	GLM 4.5
Provider	NanoGPT	NanoGPT
Input / 1M tokens	$1.10	$0.30
Output / 1M tokens	$4.40	$1.30
Context window	200K	128K
Parameters	—	355B
Open weights	No	No
Released	Apr 2025	Apr 2025

OpenAI o4-mini high details →GLM 4.5 details →

FAQ

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