vertex-gemini

Gemini 3 Flash Preview

gemini-3-flash-preview

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Gemini 3 Flash Preview is a high speed, high value thinking model designed for agentic workflows, multi turn chat, and coding assistance. It delivers near Pro level reasoning and tool use performance with substantially lower latency than larger Gemini variants, making it well suited for interactive development, long running agent loops, and collaborative coding tasks. Compared to Gemini 2.5 Flash, it provides broad quality improvements across reasoning, multimodal understanding, and reliability. The model supports a 1M token context window and multimodal inputs including text, images, audio, video, and PDFs, with text output. It includes configurable reasoning via thinking levels (minimal, low, medium, high), structured output, tool use, and automatic context caching. Gemini 3 Flash Preview is optimized for users who want strong reasoning and agentic behavior without the cost or latency of full scale frontier models.

Chat with Gemini 3 Flash Preview

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Providers for Gemini 3 Flash Preview

AnyInt routes requests to the best providers that are able to handle your prompt size and parameters, with fallbacks to maximize uptime.

vertex-gemini

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Sample code and API for Gemini 3 Flash Preview

AnyInt generates a quickstart from this model's declared API operations, including complete polling flows for asynchronous media.

Create API key

Choose an operation and language that match this model.

ResponsesOpenAI compatible

Call the standard operation supported by this model.

/v1/responses

curl 'https://api.anyint.ai/v1/responses' \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer <YOUR_API_KEY>" \
  -d '{
  "model": "gemini-3-flash-preview",
  "input": "Describe a calm futuristic city at sunrise."
}'

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