Gemini 3 Flash (Preview) API

Model details

Context window

1.0M tokens

Max output

66K tokens

Input

Text, images, audio, documents

Output

Text

Capabilities

Reasoning, Vision, Tool calling, Streaming, JSON output

Interfaces

OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses

Why teams pick it

• Gemini 3 Flash (Preview) for OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses.

Call Gemini 3 Flash (Preview)

Gemini 3 Flash (Preview) answers on any of the APIs below — pick the one your code already speaks and just swap in your Inferray key.

curl https://api.inferray.com/v1/chat/completions \
  -H "Authorization: Bearer inferray_..." \
  -H "Content-Type: application/json" \
  -d '{
  "model": "gemini-3-flash-preview",
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ]
}'

curl https://api.inferray.com/v1/messages \
  -H "Authorization: Bearer inferray_..." \
  -H "Content-Type: application/json" \
  -d '{
  "model": "gemini-3-flash-preview",
  "max_tokens": 1024,
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ]
}'

curl https://api.inferray.com/v1/responses \
  -H "Authorization: Bearer inferray_..." \
  -H "Content-Type: application/json" \
  -d '{
  "model": "gemini-3-flash-preview",
  "input": "Hello"
}'

Use Gemini 3 Flash (Preview) in your tools

Every coding agent below has a setup guide. Set the model to gemini-3-flash-preview.

• Claude Code
• Codex
• opencode
• Cline
• Roo Code
• Aider
• Continue

More from Google

Alternatives to Gemini 3 Flash (Preview)

• Qwen3.6 PlusQwen3.6 Plus for OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses.Alibaba
• Seed 2.0 Code Preview (260328)Seed 2.0 Code Preview (260328) for OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses.ByteDance
• GLM-5.3A coding-first flagship with a million-token context.Z.ai

Questions about this model

How much does the Gemini 3 Flash (Preview) API cost?

Gemini 3 Flash (Preview) costs $0.5 per 1M input tokens and $3 per 1M output tokens on Inferray, and cached input is $0.05 per 1M. That is the list price, with no gateway fee on top.

Is there a free tier for Gemini 3 Flash (Preview)?

No. You add credit and pay Gemini 3 Flash (Preview)'s list rate for each request — seats, projects, and API keys are free, and pay-as-you-go credit never expires.

Am I charged for failed requests?

No. A request that fails without returning a result is not billed. If a response fails part-way, the tokens already processed before the failure are charged.

Is Gemini 3 Flash (Preview) included in Token Plans?

No. Gemini 3 Flash (Preview) is pay-as-you-go only; Token Plans cover the other text models in the catalog.

Can I use Gemini 3 Flash (Preview) in Claude Code?

Yes. Set ANTHROPIC_BASE_URL to https://api.inferray.com, ANTHROPIC_AUTH_TOKEN to your Inferray key, and ANTHROPIC_MODEL to gemini-3-flash-preview. The same key works in Codex, opencode, Cline, and other agents.

Does Gemini 3 Flash (Preview) support tool calling and vision?

Gemini 3 Flash (Preview) supports tool calling, image input, reasoning, JSON output and streaming on Inferray.

Is it the real Gemini 3 Flash (Preview)?

Yes. A request for gemini-3-flash-preview is answered by Gemini 3 Flash (Preview) from Google, billed at its published list price. Inferray never substitutes a different or smaller model.