Is GPT-4.1 nano or GLM-4.5 cheaper?

GPT-4.1 nano is cheaper on output tokens ($0.40 vs $2.20 per 1M).

Which has the larger context window, GPT-4.1 nano or GLM-4.5?

GPT-4.1 nano has the larger context window (1M tokens).

GPT-4.1 nano vs GLM-4.5

GPT-4.1 nano is cheaper on output tokens, while GPT-4.1 nano offers a larger context window. Choose GPT-4.1 nano or GLM-4.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-4.1 nano	GLM-4.5
Provider	Impossibl	Impossibl
Input / 1M tokens	$0.10	$0.60
Output / 1M tokens	$0.40	$2.20
Context window	1M	131K
Parameters	—	—
Open weights	No	Yes
Released	Apr 2025	Jul 2025

GPT-4.1 nano 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.