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Google AI offers 48 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.

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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-3.1-pro-preview',
    messages: [{ role: "user", content: "Hello!" }],
  }),
});

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Chat Completions

Target URL: https://generativelanguage.googleapis.com/v1beta/openai/chat/completions
Auth HeaderAuthorization: Bearer
Content Typeapplication/json
StreamingYes (set stream: true in request body)
ModelInput / 1M tokensOutput / 1M tokens
gemini-3.1-pro-preview$2.00$12.00
models/gemini-3.1-pro-preview$2.00$12.00
gemini-3-pro-preview$2.00$12.00
models/gemini-3-pro-preview$2.00$12.00
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-preview$0.25$1.50
models/gemini-3.1-flash-lite-preview$0.25$1.50
gemini-2.5-flash-lite$0.10$0.40
models/gemini-2.5-flash-lite$0.10$0.40
gemini-2.0-flash$0.10$0.40
models/gemini-2.0-flash$0.10$0.40

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Chat Completions (Gemini Native)

Target URL: https://generativelanguage.googleapis.com/v1beta/models/{model}:generateContent
Auth Headerx-goog-api-key
Content Typeapplication/json
StreamingNo
ModelInput / 1M tokensOutput / 1M tokens
gemini-3.1-pro-preview$2.00$12.00
models/gemini-3.1-pro-preview$2.00$12.00
gemini-3-pro-preview$2.00$12.00
models/gemini-3-pro-preview$2.00$12.00
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-preview$0.25$1.50
models/gemini-3.1-flash-lite-preview$0.25$1.50
gemini-2.5-flash-lite$0.10$0.40
models/gemini-2.5-flash-lite$0.10$0.40
gemini-2.0-flash$0.10$0.40
models/gemini-2.0-flash$0.10$0.40

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Chat Completions (Gemini Streaming)

Target URL: https://generativelanguage.googleapis.com/v1beta/models/{model}:streamGenerateContent
Auth Headerx-goog-api-key
Content Typeapplication/json
StreamingAlways
ModelInput / 1M tokensOutput / 1M tokens
gemini-3.1-pro-preview$2.00$12.00
models/gemini-3.1-pro-preview$2.00$12.00
gemini-3-pro-preview$2.00$12.00
models/gemini-3-pro-preview$2.00$12.00
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-preview$0.25$1.50
models/gemini-3.1-flash-lite-preview$0.25$1.50
gemini-2.5-flash-lite$0.10$0.40
models/gemini-2.5-flash-lite$0.10$0.40
gemini-2.0-flash$0.10$0.40
models/gemini-2.0-flash$0.10$0.40

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Next Steps

All Providers

Browse all supported AI providers

Forward Proxy

Learn how to construct proxy URLs and authenticate requests