Last refreshed 2026-05-22. Next refresh: weekly.
Why use Gemini 3.1 Pro Preview on Vercel AI Gateway?
Vercel AI Gateway offers Gemini 3.1 Pro Preview with pay-as-you-go pricing at $2.00/1M 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 Gemini 3.1 Pro Preview across 5 providers to find the best fit for your use caseSetup recipe
Python + curlpip install openaiexport AI_GATEWAY_API_KEY=...import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["AI_GATEWAY_API_KEY"],google/gemini-3.1-pro-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-pro-preview",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- Use provider model ID "google/gemini-3.1-pro-preview", not the LLMReference slug "gemini-3.1-pro-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 Gemini 3.1 Pro Preview Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Google AI Studio | $2.00 | $12.00 |
| GCP Vertex AI | $2.00 | $12.00 |
| OpenRouter | $2.00 | $12.00 |
| Replicate API | $2.00 | $12.00 |
| Vercel AI Gateway | $2.00 | $12.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $2.00 |
| Output tokens | $12.00 |
| Query | $14.00 |
Capabilities
About Gemini 3.1 Pro Preview
Google: Gemini 3.1 Pro Preview available via OpenRouter. Pricing: $2/1M input, $12/1M output.
FAQ
What does Gemini 3.1 Pro Preview cost on Vercel AI Gateway?
On Vercel AI Gateway, Gemini 3.1 Pro Preview costs $2 per 1M input tokens and $12 per 1M output tokens.
What is the context window for Gemini 3.1 Pro Preview on Vercel AI Gateway?
Gemini 3.1 Pro Preview supports a 1,000,000 token context window on Vercel AI Gateway.
How does Vercel AI Gateway compare to other Gemini 3.1 Pro Preview providers?
Gemini 3.1 Pro Preview is available from 5 providers. The cheapest input pricing is $2.00/1M tokens from Google AI Studio.
What API model ID do I use for Gemini 3.1 Pro Preview on Vercel AI Gateway?
Use the model ID google/gemini-3.1-pro-preview when calling Vercel AI Gateway's API.
Who created Gemini 3.1 Pro Preview?
Gemini 3.1 Pro Preview was created by Google DeepMind as part of the Gemini 3.1 model family.
Is Gemini 3.1 Pro Preview open source?
Gemini 3.1 Pro Preview's open source status is unknown in the seed data.