Is Gemini 3.1 Flash Image Preview (Nano Banana 2) or GLM 4.5 cheaper?

GLM 4.5 is cheaper on output tokens ($2.20 vs $3.00 per 1M).

Which has the larger context window, Gemini 3.1 Flash Image Preview (Nano Banana 2) or GLM 4.5?

Gemini 3.1 Flash Image Preview (Nano Banana 2) has the larger context window (131K tokens).

Gemini 3.1 Flash Image Preview (Nano Banana 2) vs GLM 4.5

GLM 4.5 is cheaper on output tokens, while Gemini 3.1 Flash Image Preview (Nano Banana 2) offers a larger context window. Choose Gemini 3.1 Flash Image Preview (Nano Banana 2) 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 Flash Image Preview (Nano Banana 2)	GLM 4.5
Provider	Vercel AI Gateway	Vercel AI Gateway
Input / 1M tokens	$0.50	$0.60
Output / 1M tokens	$3.00	$2.20
Context window	131K	128K
Parameters	—	355B
Open weights	No	Yes
Released	Feb 2026	Jul 2025

Gemini 3.1 Flash Image Preview (Nano Banana 2) 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.