Google: Nano Banana 2 (Gemini 3.1 Flash Image)

google/gemini-3.1-flash-image

CHAT Mid tier ReasoningMultimodal Proprietary (API-only)

Google: Nano Banana 2 (Gemini 3.1 Flash Image) (google/gemini-3.1-flash-image) is a chat model from openrouter with a 131.1K-token context window; proprietary (API-only); capabilities reasoning, vision; input image, text; output image, text.

131.1KContext

32.8KMax output

$0.5$ / 1M in

Pricing

Input: $0.5 / 1M tokens
Output: $3 / 1M tokens
Currency: USD
Note: Indicative US list price — verify with the vendor.

Indicative US list price — a reference only, verify with the vendor. Source: openrouter. Last verified 2026-07-24.

Specifications

Context window: 131,072 tokens (131.1K)
Max output: 32,768 tokens
Weights: Proprietary (API-only)
Input modalities: image text
Output modalities: image text
Knowledge cutoff: 2025-01
Release date: 2026-05-28

Capabilities

reasoning vision

Provenance

models-devopenrouter-api

Last verified: 2026-10-30

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