Gemini 3 Flash Preview

Chat model by Google.

Google language model featuring a extended context window. Engineered for dialogue, instruction following, and versatile text generation.

Models / Gemini 3 Flash PreviewID: vertex_ai/google/gemini-3-flash-preview

Maker

Google

Served On: Google Vertex AI

This model is deprecated

Gemini 3 Flash Preview has been deprecated. It is still served on nRouter and can still be called.

Caller Notice: To help identify integrations still relying on this model, all API responses now include x-nr-model-deprecated: true and Warning: 299 - "Model deprecated" headers.

Specifications

Context window, ranked against other chat models

Proportional scale: 0 to 1.05M tokens. Not ranked, no published context window: qwen-plus-2025-09-11, voxtral-small-24b-2507, qwen3.6-plus-2026-04-02.

Context window

—

Max output

—

Modality

chat

Vision
Function calling
System prompt

Pricing

Rates are read live

Pricing for gemini-3-flash-preview is fetched from the live catalogue on load, so it is never served from a cache that could outlive a repricing.

Provider-Reported Capabilities

What the hosting provider reports for this model, shown as it was returned. nRouter adds nothing to this report and infers nothing that is missing from it.

Version ID versionId

default

Launch Stage launchStage

PUBLIC_PREVIEW

Supported Actions supportedActions
Open Generation AI Studio openGenerationAiStudio
References references
Us central1 us-central1

{}

Availability

Not enough data yet

We have not collected enough health probes for this model to publish an uptime or latency figure. A percentage from a handful of samples is fabricated precision, so none is shown until the sample count supports one.

How Gemini 3 Flash Preview is billed

Billed at the provider's list price, with no per-token markup.

Exact list price
Tokens settle at the published rate of the model that served your call.
Cache discounts passed through
Provider prompt-caching discounts reach your balance with no added fee.
Cost on every response
Each response carries the x-nr-request-cost header, so you can reconcile spend per request.

More from Google

Start building with gemini-3-flash-preview

One API key, three steps. Choose your tool to begin.

  1. Set your API key

    export NROUTER_API_KEY="<YOUR_API_KEY>"
  2. Configure Claude Code

    Choose a tool, then copy its setup from the panel.

npm install -g @anthropic-ai/claude-code
Claude Code · vertex_ai/google/gemini-3-flash-preview
# Point Claude Code to nRouter gateway
export ANTHROPIC_BASE_URL="https://api.nrouter.ai"
export ANTHROPIC_API_KEY="$NROUTER_API_KEY"

# Launch with vertex_ai/google/gemini-3-flash-preview
claude --model vertex_ai/google/gemini-3-flash-preview

FAQs

What is Gemini 3 Flash Preview?

Google language model featuring a extended context window. Engineered for dialogue, instruction following, and versatile text generation.

How much does Gemini 3 Flash Preview cost?

Gemini 3 Flash Preview is billed at the provider's list price on nRouter with no per-token markup — tokens settle at the exact upstream rate. Input and output rates are read live, so see the pricing section above for the current figures.

Does Gemini 3 Flash Preview support tool calling and structured outputs?

No. Gemini 3 Flash Preview does not support tool calling, so it cannot invoke external tools or functions.

What inputs and outputs does Gemini 3 Flash Preview support?

Gemini 3 Flash Preview takes text as input and returns text as output.

How do I use Gemini 3 Flash Preview via nRouter?

Use any OpenAI-compatible client: point it at https://api.nrouter.ai/v1 with your nRouter API key and set the model to "vertex_ai/google/gemini-3-flash-preview". The quick-start panel above has a copy-paste curl command for this model.

When was Gemini 3 Flash Preview released?

Gemini 3 Flash Preview was released on October 6, 2026.

Where is the Gemini 3 Flash Preview documentation?

Start at nrouter.ai/docs. The quick-start guide (nrouter.ai/docs/getting-started/quick-start) covers API keys and your first request, and the API reference (nrouter.ai/docs/api-reference) lists every parameter.

What other text models does Google have?

Other Google text models on nRouter include Gemini 3.1 Pro (nrouter.ai/models/gemini-3.1-pro), Gemma 4 31B Instruct (nrouter.ai/models/google-gemma-4-31b-it), Gemma 4 26B A4B Instruct (nrouter.ai/models/google-gemma-4-26b-a4b-it), Gemini 3.1 Flash Lite (nrouter.ai/models/gemini-3.1-flash-lite).