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Gemini 3.5 Flash

GoogleAll Google models

Input

$1.50

USD / 1M tokens

Output

$9.00

USD / 1M tokens

Context

1.05M

tokens

Released

2026-05-19

Positioning: Fast. Price level 3 of 4 among text models.

Gemini 3.5 Flash is Google's generally available Flash-tier Gemini model, launched in May 2026 for agentic and coding work at Flash speed. It reads text, images, video, audio and PDFs, defaults to medium thinking effort, and carries its reasoning across multi-turn conversations automatically. Google has since released Gemini 3.6 Flash as a more token-efficient follow-up.

ThinkingToolsVisionAudio
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Google's Gemini API model page lists a 1,048,576-token input limit and a 65,536-token output limit for Gemini 3.5 Flash.

Pricing

Pay for what you use: credits are deducted only when a request succeeds.
Prices in USD · $1 = 100 credits
Input
$1.50
Output
$9.00
USD / 1M tokens

Google · Family · USD / 1M tokens

Text models from the same vendor on ATP. Bars fill up to the family's highest price.
All Google models
ModelInputOutput
Gemini 3.1 Pro (Preview)gemini-3-1-pro-preview$2.00$12.00
Gemini 3.5 Flash This pagegemini-3-5-flash$1.50$9.00
Gemini 3.6 Flashgemini-3-6-flash$1.50$7.50
Gemini 3 Flash (Preview)gemini-3-flash-preview$0.50$3.00
Gemini 3.5 Flash Litegemini-3-5-flash-lite$0.30$2.50

Cost per 1,000 typical requests

A quick estimate with fixed token counts per request. No caching, no retries. Try the estimator with your own numbers.
WorkloadUSD / 1,000
Short chat turn800 / 400$4.80
RAG answer4,000 / 500$10.50
Agent step with tools20,000 / 1,500$43.50

Where it fits

Good fit
  • Iterative coding loops, rapid prototyping, and sub-agent fan-out
  • Multi-step tool-calling workflows that run for many turns
  • Multimodal pipelines mixing text, image, video, audio, and PDF inputs
  • Long-document review and chart reading over a 1M-token context
Usually not ideal
  • Questions about events after January 2025 without search grounding (Google's stated knowledge cutoff)
  • New agent builds chasing token efficiency — Google positions Gemini 3.6 Flash (also on ATP) as leaner

Benchmarks

Vendor-reported

Scores as published by each vendor, not measured by ATP. Test conditions vary, so they are not directly comparable across vendors.

Same controls on every model: project keys, per-project model access, credit budgets, and a log of every request.Set up your organization

Cost estimator

Plug in your usage to see roughly what a month costs.
0200
0100
ESTIMATE
$33.00
USD / month
3,300 credits / month
  • Input$15.00
  • Output$18.00

$33.00 USD / month · 3,300 credits / month

An estimate at our USD prices (USD 1 = 100 credits). What each request actually cost shows up in your console's request log.

Quickstart

Keep your SDK. Point it at ATP and use a project key. Read the docs
quickstart.py · OpenAI SDK
from openai import OpenAI

client = OpenAI(
  base_url="https://api.atptoken.ai/v1",
  api_key="atp-•••"
)

r = client.chat.completions.create(
  model="gemini-3-5-flash",
  messages=[{"role":"user","content":"hi"}],
)

Compare with similar models

Same type and positioning, from other vendors, closest in price first.
Compare side by side

Related models

All Google models
Gemini 3.1 Pro (Preview)gemini-3-1-pro-preview$2.00 / $12.00In / out · per 1M tokensGemini 3.6 Flashgemini-3-6-flash$1.50 / $7.50In / out · per 1M tokensGemini 3 Flash (Preview)gemini-3-flash-preview$0.50 / $3.00In / out · per 1M tokensGemini 3.5 Flash Litegemini-3-5-flash-lite$0.30 / $2.50In / out · per 1M tokensNano Banana Pronano-banana-pro$0.134 / $0.1341K / 2K · per imageNano Banana Pro (Edit)nano-banana-pro-edit$0.134 / $0.1341K / 2K · per image

FAQ

4
Can Gemini 3.5 Flash use tools, read images, or think before answering?
Gemini 3.5 Flash supports tool calling, vision input, extended thinking and audio.
How much context does Gemini 3.5 Flash take?
Google lists a 1,048,576-token context window for Gemini 3.5 Flash. Source: Google AI for Developers — Gemini 3.5 Flash. The model list your key can see shows the limit you actually get.
How is Gemini 3.5 Flash priced?
You pay per 1M input tokens and per 1M output tokens. You only pay when a request succeeds. $1 = 100 credits. See pricing
Is there a newer Google model than Gemini 3.5 Flash on ATP?
Yes. Gemini 3.5 Flash Lite (gemini-3-5-flash-lite) and Gemini 3.6 Flash (gemini-3-6-flash) came out on Jul 21, 2026, after Gemini 3.5 Flash (May 19, 2026), and are the newer Google text option on ATP. Both stay available: compare family prices on this page, then turn on the id you want for your project.

Sources

The model description on this page cites these sources. Prices come from ATP.
Get started

Start with $5. Credits never expire.

Create a project key, turn this model on, and pay only for what you use.

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