Is Gemini 2.5 Flash or GLM 4.5 cheaper?

GLM 4.5 is cheaper on output tokens ($2.20 vs $2.50 per 1M).

Which has the larger context window, Gemini 2.5 Flash or GLM 4.5?

Gemini 2.5 Flash has the larger context window (1M tokens).

Gemini 2.5 Flash vs GLM 4.5

GLM 4.5 is cheaper on output tokens, while Gemini 2.5 Flash offers a larger context window. Choose Gemini 2.5 Flash or GLM 4.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Gemini 2.5 Flash	GLM 4.5
Provider	Vercel AI Gateway	Vercel AI Gateway
Input / 1M tokens	$0.30	$0.60
Output / 1M tokens	$2.50	$2.20
Context window	1M	128K
Parameters	—	355B
Open weights	No	Yes
Released	Jun 2025	Jul 2025

Gemini 2.5 Flash 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.