Nano Banana 2 (Gemini 3.1 Flash Image Preview) on GCP Vertex AI
Gemini 3.1 · Google DeepMind
Last refreshed 2026-06-15. Next refresh: weekly.
Why use Nano Banana 2 (Gemini 3.1 Flash Image Preview) on GCP Vertex AI?
GCP Vertex AI offers Nano Banana 2 (Gemini 3.1 Flash Image Preview) with pay-as-you-go pricing at $0.50/1M 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 Nano Banana 2 (Gemini 3.1 Flash Image Preview) across 4 providers to find the best fit for your use caseSetup recipe
Python + curlpip install google-cloud-aiplatformexport GOOGLE_CLOUD_PROJECT=...import os
import vertexai
from vertexai.generative_models import GenerativeModel
vertexai.init(project=os.environ["GOOGLE_CLOUD_PROJECT"], location="us-central1")gemini-3.1-flash-image-previewRequest 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-image-preview")
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 Nano Banana 2 (Gemini 3.1 Flash Image Preview) Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Google AI Studio | $0.50 | $60.00 |
| GCP Vertex AI | $0.50 | $60.00 |
| OpenRouter | $0.50 | $3.00 |
| Vercel AI Gateway | $0.50 | $3.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.50 |
| Output tokens | $60.00 |
Capabilities
No model capability flags are currently sourced.
About Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Preview release of Nano Banana 2 for Gemini 3.1 Flash Image. Google released the GA gemini-3.1-flash-image model on 2026-05-28 and will retire this preview API ID on 2026-06-25.
FAQ
What does Nano Banana 2 (Gemini 3.1 Flash Image Preview) cost on GCP Vertex AI?
On GCP Vertex AI, Nano Banana 2 (Gemini 3.1 Flash Image Preview) costs $0.5 per 1M input tokens and $60 per 1M output tokens.
What is the context window for Nano Banana 2 (Gemini 3.1 Flash Image Preview) on GCP Vertex AI?
Nano Banana 2 (Gemini 3.1 Flash Image Preview) supports a 66k token context window on GCP Vertex AI.
How does GCP Vertex AI compare to other Nano Banana 2 (Gemini 3.1 Flash Image Preview) providers?
Nano Banana 2 (Gemini 3.1 Flash Image Preview) is available from 4 providers. The cheapest input pricing is $0.5/1M tokens from Google AI Studio.
Who created Nano Banana 2 (Gemini 3.1 Flash Image Preview)?
Nano Banana 2 (Gemini 3.1 Flash Image Preview) was created by Google DeepMind as part of the Gemini 3.1 model family.
Is Nano Banana 2 (Gemini 3.1 Flash Image Preview) open source?
Nano Banana 2 (Gemini 3.1 Flash Image Preview) is not open source; the seed data lists it as proprietary.