Last refreshed 2026-05-22. Next refresh: weekly.
Why use Gemini 3.1 Flash-Lite on Vercel AI Gateway?
Vercel AI Gateway offers Gemini 3.1 Flash-Lite with pay-as-you-go pricing at $0.25/1M 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 Flash-Lite across 3 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-flash-liteRequest 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-lite",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- Use provider model ID "google/gemini-3.1-flash-lite", not the LLMReference slug "gemini-3.1-flash-lite".
- 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 Flash-Lite Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Google AI Studio | $0.25 | $1.50 |
| OpenRouter | $0.25 | $1.50 |
| Vercel AI Gateway | $0.25 | $1.50 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.25 |
| Output tokens | $1.50 |
| Query | $14.00 |
Capabilities
About Gemini 3.1 Flash-Lite
Gemini 3.1 Flash-Lite is Google's generally available low-latency Gemini 3.1 model, launched May 7, 2026. It is optimized for high-volume, cost-sensitive workloads with text, image, and video inputs, a 1M token context window, and a 66K token maximum output. The GA model uses the stable API ID gemini-3.1-flash-lite and replaces gemini-3.1-flash-lite-preview, which is scheduled to shut down on May 25, 2026. Pricing is $0.25 per 1M input tokens and $1.50 per 1M output tokens.
FAQ
What does Gemini 3.1 Flash-Lite cost on Vercel AI Gateway?
On Vercel AI Gateway, Gemini 3.1 Flash-Lite costs $0.25 per 1M input tokens and $1.5 per 1M output tokens.
What is the context window for Gemini 3.1 Flash-Lite on Vercel AI Gateway?
Gemini 3.1 Flash-Lite supports a 1,000,000 token context window on Vercel AI Gateway.
How does Vercel AI Gateway compare to other Gemini 3.1 Flash-Lite providers?
Gemini 3.1 Flash-Lite is available from 3 providers. The cheapest input pricing is $0.25/1M tokens from Google AI Studio.
What API model ID do I use for Gemini 3.1 Flash-Lite on Vercel AI Gateway?
Use the model ID google/gemini-3.1-flash-lite when calling Vercel AI Gateway's API.
Who created Gemini 3.1 Flash-Lite?
Gemini 3.1 Flash-Lite was created by Google DeepMind as part of the Gemini 3.1 model family.
Is Gemini 3.1 Flash-Lite open source?
Gemini 3.1 Flash-Lite is not open source; the seed data lists it as proprietary.