Verified 2026-05-20 · sourced from Google
Gemini 3.5 Flash Token Calculator, Pricing & 100K/1M Cost
Check Google Gemini 3.5 Flash pricing, estimate 100K and 1M token cost, and size a real API budget before you send a single request. Standard pricing is $1.50 per million input tokens and $9.00 per million output tokens with a 1M token context window.
Quick answer: Gemini 3.5 Flash pricing per 1M tokens is $1.50 input and $9.00 output. Context window: 1,048,576 tokens · Cached input: $0.150 / 1M.
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Context window
1,048,576 tokens
Input price
$1.50 / 1M
Output price
$9.00 / 1M
Cached input
$0.150 / 1M
Pricing modes and thresholds
Usage scenarios
Compare standard and cached pricing (where available) across common workloads.
| Scenario | Tokens in | Tokens out | Total tokens | Standard cost | Cached cost |
|---|---|---|---|---|---|
Quick chat reply Single user question with a short assistant answer | 650 | 220 | 870 | $0.0030 | $0.0021 |
Coding assistant session Multi-turn pair programming exchange (≈6 turns) | 2,600 | 1,400 | 4,000 | $0.0165 | $0.0130 |
Knowledge base response Retrieval-augmented answer referencing multiple passages | 12,000 | 3,000 | 15,000 | $0.0450 | $0.0288 |
Near-max context run Large document processing approaching the 1M token limit | 922,747 | 125,829 | 1,048,576 | $2.52 | $1.27 |
Daily & monthly budgeting
Translate usage into predictable operating expenses across popular deployment sizes.
| Profile | Requests/day | Tokens/day | Daily cost | Monthly cost | Cached daily | Cached monthly |
|---|---|---|---|---|---|---|
| Team pilot | 25 | 75,000 | $0.300 | $9.00 | $0.233 | $6.98 |
| Product launch | 100 | 500,000 | $1.87 | $56.25 | $1.40 | $42.07 |
| Enterprise scale | 500 | 3,000,000 | $12.00 | $360.00 | $9.30 | $279.00 |
Pricing notes
- Google lists Gemini 3.5 Flash as a stable model with the model code gemini-3.5-flash.
- Standard paid pricing is $1.50 input, $0.15 cached input, and $9.00 output per 1M tokens.
- Batch and Flex both use $0.75 input and $4.50 output per 1M tokens; Flex cached input is listed at $0.08 per 1M tokens.
- Priority pricing is $2.70 input, $0.27 cached input, and $16.20 output per 1M tokens.
Frequently asked questions
How much does Gemini 3.5 Flash cost per 1,000 tokens?
At the published rates of $1.50 per million input tokens and $9.00 per million output tokens, a typical 1,000 token request (≈70% input, 30% output) costs about $0.0037.
Does Gemini 3.5 Flash offer cached input discounts?
Gemini 3.5 Flash drops input costs to $0.150 per million cached tokens. Using cached contexts, that same 1,000 token call totals $0.0028, a significant saving for chatbots and RAG systems.
What is the context window for Gemini 3.5 Flash?
Gemini 3.5 Flash supports up to 1,048,576 tokens (1M), allowing large prompts and retrieval-augmented payloads in a single call.
How fresh is the Gemini 3.5 Flash pricing data?
Pricing is sourced from https://ai.google.dev/gemini-api/docs/pricing and was last verified on 2026-05-20. The calculator updates automatically when models.json is refreshed.