Last refreshed 2026-06-15. Next refresh: weekly.
Why use Nano Banana Pro (Gemini 3 Pro Image Preview) on GCP Vertex AI?
GCP Vertex AI offers Nano Banana Pro (Gemini 3 Pro Image Preview) with pay-as-you-go pricing at $3.00/1M 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 Pro (Gemini 3 Pro Image Preview) across 3 providers to find the best fit for your use caseInput / 1M
$3.00
Output / 1M
$15.00
Cache
Not sourced
Batch
Not sourced
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-pro-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-pro-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 Pro (Gemini 3 Pro Image Preview) Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Google AI Studio | $2.00 | $120.00 |
| GCP Vertex AI | $3.00 | $15.00 |
| OpenRouter | $2.00 | $12.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $3.00 |
| Output tokens | $15.00 |
Capabilities
No model capability flags are currently sourced.
About Nano Banana Pro (Gemini 3 Pro Image Preview)
Preview release of Nano Banana Pro for Gemini 3 Pro Image. Google released the GA gemini-3-pro-image model on 2026-05-28 and will retire this preview API ID on 2026-06-25.
Model Specs
Released2025-09-01
Context66k
ArchitectureDecoder Only