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Gemini 3 Flash Preview

by Google
google/gemini-3-flash-preview

Gemini 3 Flash Preview is a text and image and audio and video and file-input model by Google, available through the AgentSky API as google/gemini-3-flash-preview at $0.55 per million input tokens and $3.30 per million output tokens, with a 1M context window.

The preview-channel Flash model, with the same multimodal input envelope as 3.5 Flash.

Repo

Pricing

USD per million tokens, using your plan when signed in.
MeterPer 1M tokens
InputPrice: $0.55
OutputPrice: $3.30
Cache readPrice: $0.055
Cache writePrice: $0.55

Every response carries its own cost. Balance and per-call records: /v1/credits and /v1/generation.

Use it

Point your client at the gateway and pass this model id. Nothing else changes.
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://gateway.agentsky.dev/v1",
  apiKey: process.env.AGENTSKY_API_KEY, // ast_…
});

const completion = await client.chat.completions.create({
  model: "google/gemini-3-flash-preview",
  messages: [{ role: "user", content: "Summarise this ticket." }],
});
console.log(completion.usage.cost); // USD, in the response

Questions