Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)

Public pricingIntelligence 79/100Medium memoryVision

Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) est un modèle multimodal conçu pour génération et retouche d’images. Il associe la gestion multimodale des entrées et la compréhension d’images, un contexte de 66K tokens et un profil à coût équilibré pour un travail fiable sur génération et retouche d’images.

Input

$0.50/1M

Output

$3.00/1M

Cached

$0.07/1M

Batch

$0.15/1M

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Technical specifications

Nano Banana 2 (Gemini 3.1 Flash Image Preview) at a glance.

Memory

65,536

tokens

Max reply

65,536

tokens

Memory tier

Medium

a long report or a codebase file

Tokenizer

sentencepiece

Released

Mar 2026

Training cutoff

Apr 2025

Availability

Public pricing

Status

active

What it can do

Capabilities & limits.

  • Understands images
  • Deep step-by-step thinking
  • Uses tools / calls functions
  • Strict JSON output
  • Streams replies
  • Fine-tunable on your data

When to pick Nano Banana 2 (Gemini 3.1 Flash Image Preview)

  • Screenshot analysis, image understanding, or document OCR.
  • High-volume workloads where unit cost matters.
  • Multimodal pipelines mixing text + images.

When to look elsewhere

  • You need tool-use / function calling for agent workflows.

Alternatives

Similar models to compare.

FAQ

Nano Banana 2 (Gemini 3.1 Flash Image Preview) — the questions we see most.

Pricing, capabilities, alternatives — generated from the same data that powers the calculator above.

Get instant answers from our AI agent

At a typical workload of 50,000 conversations a month with 1,500-token prompts and 800-token replies, Nano Banana 2 (Gemini 3.1 Flash Image Preview) costs roughly $158 per month. Input is $0.50 /1M tokens and output is $3.00 /1M tokens.
Nano Banana 2 (Gemini 3.1 Flash Image Preview) has a 65,536-token context window (medium memory — a long report or a codebase file). That means you can fit about 12,288 words of input and history in a single call.
Beyond text generation, Nano Banana 2 (Gemini 3.1 Flash Image Preview) supports understanding images. It streams replies by default.
Nano Banana 2 (Gemini 3.1 Flash Image Preview) was released in March 2026, with training data cut off around April 2025.
Models in a similar class include Gemini 3 Flash Preview, Gemini 2.5 Flash, Nano Banana (Gemini 2.5 Flash Image). The "Similar models" section below this FAQ links into each.

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