Google: Nano Banana 2 (Gemini 3.1 Flash Image)

Pricing, context window and lifecycle for google/gemini-3.1-flash-image, tracked from what the vendor publishes.

Price per million tokens

Input	$0.500
Output	$3.00

Facts

Model ID	google/gemini-3.1-flash-image
Vendor	Google
Context window	131,072 tokens
Knowledge cutoff	-
End of life	none published

Supported parameters

include_reasoning, max_tokens, reasoning, reasoning_effort, response_format, seed, structured_outputs, temperature, top_p

Other Google models

google/gemini-2.5-flash $0.300 in / $2.50 out
google/gemini-2.5-flash-image $0.300 in / $2.50 out
google/gemini-2.5-flash-lite $0.100 in / $0.400 out
google/gemini-2.5-pro $1.25 in / $10.00 out
google/gemini-2.5-pro-preview $1.25 in / $10.00 out
google/gemini-2.5-pro-preview-05-06 $1.25 in / $10.00 out
google/gemini-3-flash-preview $0.500 in / $3.00 out
google/gemini-3-pro-image $2.00 in / $12.00 out
google/gemini-3-pro-image-preview $2.00 in / $12.00 out
google/gemini-3.1-flash-image-preview $0.500 in / $3.00 out