Gemini 3.1 Flash Lite Image (Nano Banana 2 Lite) on GCP Vertex AI
Gemini 3.1 · Google DeepMind
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Last refreshed 2026-10-19. Next refresh: weekly.
Why use Gemini 3.1 Flash Lite Image (Nano Banana 2 Lite) on GCP Vertex AI?
GCP Vertex AI offers Gemini 3.1 Flash Lite Image (Nano Banana 2 Lite) with pay-as-you-go pricing at $0.25/1M input tokens. Vertex AI is Google Cloud's managed AI platform, offering access to Gemini models and hundreds of partner models alongside tools for fine-tuning, grounding, vector search, and end-to-end MLOps pipelines.
Compare Gemini 3.1 Flash Lite Image (Nano Banana 2 Lite) across 4 providers to find the best fit for your use caseInput / 1M
$0.25
Output / 1M
$1.50
Cache
read $0.025
Batch
-50% · in $0.125 / out $0.75
Setup recipe
Python + curlInstall
pip install google-cloud-aiplatformAuth
export GOOGLE_CLOUD_PROJECT=...Call
import os
import vertexai
from vertexai.generative_models import GenerativeModel
vertexai.init(project=os.environ["GOOGLE_CLOUD_PROJECT"], location="us-central1")Model ID
gemini-3.1-flash-lite-imageRequest example
import os
import vertexai
from vertexai.generative_models import GenerativeModel
# Reads GOOGLE_CLOUD_PROJECT from env; authenticates via Application Default Credentials
vertexai.init(project=os.environ["GOOGLE_CLOUD_PROJECT"], location="us-central1")
model = GenerativeModel("gemini-3.1-flash-lite-image")
response = model.generate_content("Hello")
print(response.text)Gotchas
- For Google-published models use the model name directly, e.g. "gemini-2.0-flash-001". For third-party publishers (Anthropic, Meta, etc.) use the full publisher path, e.g. "publishers/anthropic/models/claude-3-5-sonnet-v2@20241022".
- The examples expect GOOGLE_CLOUD_PROJECT; rename it only if your application config maps the new variable.
Compare Gemini 3.1 Flash Lite Image (Nano Banana 2 Lite) Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Google AI Studio | $0.25 | $1.50 |
| GCP Vertex AI | $0.25 | $1.50 |
| Vercel AI Gateway | $0.25 | $1.50 |
| OpenRouter | $0.25 | $1.50 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.25 |
| Output tokens | $1.50 |
| Image input | $30.00 |
Capabilities
VisionMultimodalReasoningBatch API
About Gemini 3.1 Flash Lite Image (Nano Banana 2 Lite)
Gemini 3.1 Flash Lite Image (Nano Banana 2 Lite; API id gemini-3.1-flash-lite-image) is Google's efficiency-focused image generation/editing model. Inputs text/image/video/PDF; outputs image+text. FP limits 65536/4096. Paid: $0.25/1M input, $1.50/1M text output, $30/1M image output (~$0.0336/1K image).
Get Started
Model Specs
Context64K