Nano Banana 2 (Gemini 3.1 Flash Image Preview) on Vercel AI Gateway
Gemini 3.1 · Google DeepMind
Serverless
Last refreshed 2026-06-29. Next refresh: weekly.
Why use Nano Banana 2 (Gemini 3.1 Flash Image Preview) on Vercel AI Gateway?
Vercel AI Gateway offers Nano Banana 2 (Gemini 3.1 Flash Image Preview) with pay-as-you-go pricing at $0.50/1M input tokens. Vercel AI Gateway is a unified AI proxy providing a single OpenAI-compatible API endpoint to 275+ models from 25+ providers including Anthropic, OpenAI, Google, Meta, Mistral, DeepSeek, xAI, Alibaba, Amazon, ByteDance, Cohere, MiniMax, MoonshotAI, KwaiPilot, Black Forest Labs, Recraft, Voyage AI, NVIDIA, and more.
Compare Nano Banana 2 (Gemini 3.1 Flash Image Preview) across 4 providers to find the best fit for your use caseInput / 1M
$0.50
Output / 1M
$3.00
Cache
read $0.050
Batch
Not sourced
Setup recipe
Python + curlInstall
pip install openaiAuth
export AI_GATEWAY_API_KEY=...Call
import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["AI_GATEWAY_API_KEY"],Model ID
google/gemini-3.1-flash-image-previewRequest example
import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["AI_GATEWAY_API_KEY"],
base_url="https://ai-gateway.vercel.sh/v1"
)
response = client.chat.completions.create(
model="google/gemini-3.1-flash-image-preview",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- Use provider model ID "google/gemini-3.1-flash-image-preview", not the LLMReference slug "gemini-3.1-flash-image-preview".
- creator/model-name e.g. kwaipilot/kat-coder-pro-v2
- The examples expect AI_GATEWAY_API_KEY; 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 | $3.00 |
| Query | $14.00 |
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.
Get Started
Model Specs
Released2026-03-03
Context66k
ArchitectureDecoder Only
Knowledge cutoff2025-01