Google AI

Google AI offers 42 models through Lava’s AI Gateway, supporting Chat Completions, Chat Completions (Gemini Native), Chat Completions (Gemini Streaming). Authentication uses Authorization: Bearer or x-goog-api-key. See the Google AI API docs for provider-specific parameters.

Supports both managed (Lava’s API keys) and unmanaged (bring your own credentials) mode.

Quick Start

const response = await fetch('https://api.lava.so/v1/forward?u=https%3A%2F%2Fgenerativelanguage.googleapis.com%2Fv1beta%2Fopenai%2Fchat%2Fcompletions', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    Authorization: `Bearer ${forwardToken}`,
  },
  body: JSON.stringify({
    model: 'gemini-3.5-flash',
    messages: [{ role: "user", content: "Hello!" }],
  }),
});

Chat Completions

Target URL: https://generativelanguage.googleapis.com/v1beta/openai/chat/completions


Auth Header	`Authorization: Bearer`
Content Type	`application/json`
Streaming	Yes (set `stream: true` in request body)

Model	Input / 1M tokens	Output / 1M tokens
gemini-3.1-pro-preview	$2.00	$12.00
models/gemini-3.1-pro-preview	$2.00	$12.00
gemini-3.5-flash	$1.50	$9.00
models/gemini-3.5-flash	$1.50	$9.00
gemini-2.5-pro	$1.25	$10.00
models/gemini-2.5-pro	$1.25	$10.00
gemini-3-flash-preview	$0.50	$3.00
models/gemini-3-flash-preview	$0.50	$3.00
gemini-2.5-flash	$0.30	$2.50
models/gemini-2.5-flash	$0.30	$2.50
gemini-3.1-flash-lite	$0.25	$1.50
models/gemini-3.1-flash-lite	$0.25	$1.50
gemini-2.5-flash-lite	$0.10	$0.40
models/gemini-2.5-flash-lite	$0.10	$0.40

Chat Completions (Gemini Native)

Target URL: https://generativelanguage.googleapis.com/v1beta/models/{model}:generateContent


Auth Header	`x-goog-api-key`
Content Type	`application/json`
Streaming	No

Model	Input / 1M tokens	Output / 1M tokens
gemini-3.1-pro-preview	$2.00	$12.00
models/gemini-3.1-pro-preview	$2.00	$12.00
gemini-3.5-flash	$1.50	$9.00
models/gemini-3.5-flash	$1.50	$9.00
gemini-2.5-pro	$1.25	$10.00
models/gemini-2.5-pro	$1.25	$10.00
gemini-3-flash-preview	$0.50	$3.00
models/gemini-3-flash-preview	$0.50	$3.00
gemini-2.5-flash	$0.30	$2.50
models/gemini-2.5-flash	$0.30	$2.50
gemini-3.1-flash-lite	$0.25	$1.50
models/gemini-3.1-flash-lite	$0.25	$1.50
gemini-2.5-flash-lite	$0.10	$0.40
models/gemini-2.5-flash-lite	$0.10	$0.40

Chat Completions (Gemini Streaming)

Target URL: https://generativelanguage.googleapis.com/v1beta/models/{model}:streamGenerateContent


Auth Header	`x-goog-api-key`
Content Type	`application/json`
Streaming	Always

Model	Input / 1M tokens	Output / 1M tokens
gemini-3.1-pro-preview	$2.00	$12.00
models/gemini-3.1-pro-preview	$2.00	$12.00
gemini-3.5-flash	$1.50	$9.00
models/gemini-3.5-flash	$1.50	$9.00
gemini-2.5-pro	$1.25	$10.00
models/gemini-2.5-pro	$1.25	$10.00
gemini-3-flash-preview	$0.50	$3.00
models/gemini-3-flash-preview	$0.50	$3.00
gemini-2.5-flash	$0.30	$2.50
models/gemini-2.5-flash	$0.30	$2.50
gemini-3.1-flash-lite	$0.25	$1.50
models/gemini-3.1-flash-lite	$0.25	$1.50
gemini-2.5-flash-lite	$0.10	$0.40
models/gemini-2.5-flash-lite	$0.10	$0.40

Get Started

AI Gateway

AI Spend

Monetize

Integration

SDK

Cookbook

Comparisons

Quick Start

Chat Completions

Chat Completions (Gemini Native)

Chat Completions (Gemini Streaming)

Next Steps

All Providers

Forward Proxy

​Quick Start

​Chat Completions

​Chat Completions (Gemini Native)

​Chat Completions (Gemini Streaming)

​Next Steps

All Providers

Forward Proxy

Quick Start

Chat Completions

Chat Completions (Gemini Native)

Chat Completions (Gemini Streaming)

Next Steps