gemini-3.5-flash

Gemini 3.5 Flash API — price per token

Gemini 3.5 Flash is the previous-generation Flash — a proven high-throughput model for coding and multimodal workloads, at the same input rate as 3.6 Flash.

Pricing per 1M tokens

RateOfficial GoogleHere (−50%)
Input$1.5$0.75
Cached input$0.15$0.075
Output$9$4.5

Input

Official Google
$1.5
Here (−50%)
$0.75

Cached input

Official Google
$0.15
Here (−50%)
$0.075

Output

Official Google
$9
Here (−50%)
$4.5

Every request is metered at the official rate first, then the flat 50% B2C discount is subtracted before it touches your prepaid balance. Context window: 1M tokens. Max output: 64K tokens.

Best for

  • Workloads pinned to Gemini 3.5 Flash for reproducibility.
  • High-volume production API traffic.
  • Multimodal pipelines migrating gradually to 3.6 Flash.

Good to know

  • Same input price as Gemini 3.6 Flash, but output is $9.00 vs $7.50 — new work should default to gemini-3.6-flash.
  • Cached input bills at 10% of input; caching is automatic on repeated prefixes.

How to use Gemini 3.5 Flash

Create a free account, generate one key, and point any Gemini-compatible tool at https://gemini.api.apitoken.sale with model ID gemini-3.5-flash — the native /v1beta/models/gemini-3.5-flash:generateContent surface works, authenticated with x-goog-api-key. New accounts include $10 of API usage at official prices — enough to test the model before topping up.

Frequently asked questions

How much does the Gemini 3.5 Flash API cost?

Officially $1.50 per 1M input tokens and $9.00 per 1M output tokens, with cached input at $0.15. With the flat 50% apiToken.sale discount that is $0.75/$4.50.

Gemini 3.5 Flash or 3.6 Flash?

They share an input price, and 3.6 Flash is newer with cheaper output ($7.50 vs $9.00) — prefer it for new projects. Stay on 3.5 Flash when your prompts and evals are pinned to it.

What is the model ID?

gemini-3.5-flash. It works on the same apiToken.sale key and balance as every other Claude, GPT and Gemini model — send it as the model on the native Gemini endpoint with x-goog-api-key.

Run Gemini 3.5 Flash on the native Gemini API at a flat 50% off — instant key, prepaid balance, card or crypto.