Is Gemini 3.1 Pro (Preview) or GLM 4.5 cheaper?

GLM 4.5 is cheaper on output tokens ($1.30 vs $12.00 per 1M).

Which has the larger context window, Gemini 3.1 Pro (Preview) or GLM 4.5?

Gemini 3.1 Pro (Preview) has the larger context window (1M tokens).

Gemini 3.1 Pro (Preview) vs GLM 4.5

GLM 4.5 is cheaper on output tokens, while Gemini 3.1 Pro (Preview) offers a larger context window. Choose Gemini 3.1 Pro (Preview) or GLM 4.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Gemini 3.1 Pro (Preview)	GLM 4.5
Provider	NanoGPT	NanoGPT
Input / 1M tokens	$2.00	$0.30
Output / 1M tokens	$12.00	$1.30
Context window	1M	128K
Parameters	—	355B
Open weights	No	No
Released	Feb 2026	Apr 2025

Gemini 3.1 Pro (Preview) 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.