Gemini 3.5 Flash

by Google

google/gemini-3.5-flash

A multimodal Flash model for agentic and coding work, taking text, images, audio, video, and documents.

Modalities
Text, Image, Audio, Video, File
In / out per 1M
$1 / $6
Context
1M
Released
May 19, 2026

Overview

A multimodal Flash model for agentic and coding work, taking text, images, audio, video, and documents. It is billed from the same balance as every other model and API here, and the price of each call comes back in the response.

Pricing

The default plan, in USD per million tokens.

MeterPer 1M tokens
Input$1.00
Output$6.00
Cache read$1.00
Cache write$1.00

Your balance and per-call records come from /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-3.5-flash",
  messages: [{ role: "user", content: "Summarise this ticket." }],
});
console.log(completion.usage.cost); // USD, in the response

Questions

Gemini 3.5 Flash — AgentSky