Gemini 3.5 Flash
Specs & Pricing
API pricing per 1M tokens and core technical specificationsCost Calculator
Simulate estimated API usage cost based on your specific traffic and context sizeSimulation Results
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Alternative Models
Models with comparable benchmark score and pricing tier| Model | Provider | Context Window | Max Output | Training Cutoff | Input / 1M | Cache Price / 1M | Output / 1M | Benchmark | Speed | Total |
|---|---|---|---|---|---|---|---|---|---|---|
OpenAI | 400K | 128K | 2024-09 | $1.25 | $0.125 | $10.00 | 88.5 | Standard | $0.0435 | |
OpenAI | 400K | 128K | 2024-09 | $1.25 | $0.125 | $10.00 | 87.75 | Standard | $0.0435 | |
OpenAI | 400K | 128K | 2024-09 | $1.25 | $0.125 | $10.00 | 86 | Slow | $0.0435 | |
OpenAI | 128K | 16K | 2024-09 | $1.25 | $0.125 | $10.00 | 86 | Standard | $0.0435 | |
OpenAI | 128K | 16K | 2024-09 | $1.25 | $0.125 | $10.00 | 86 | Standard | $0.0435 |
Provider
Benchmark
88.5Speed
Standard
Training Cutoff
2024-09
Context Window
400K
Max Output
128K
Input / 1M
$1.25
Cache Price / 1M
$0.125
Output / 1M
$10.00
Provider
Benchmark
87.75Speed
Standard
Training Cutoff
2024-09
Context Window
400K
Max Output
128K
Input / 1M
$1.25
Cache Price / 1M
$0.125
Output / 1M
$10.00
Provider
Benchmark
86Speed
Slow
Training Cutoff
2024-09
Context Window
400K
Max Output
128K
Input / 1M
$1.25
Cache Price / 1M
$0.125
Output / 1M
$10.00
Provider
Benchmark
86Speed
Standard
Training Cutoff
2024-09
Context Window
128K
Max Output
16K
Input / 1M
$1.25
Cache Price / 1M
$0.125
Output / 1M
$10.00
Provider
Benchmark
86Speed
Standard
Training Cutoff
2024-09
Context Window
128K
Max Output
16K
Input / 1M
$1.25
Cache Price / 1M
$0.125
Output / 1M
$10.00
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Gemini 3.5 Flash Frequently Asked Questions (FAQ)
Key insights into Gemini 3.5 Flash API pricing, context capacity, caching savings, and performance benchmarks
Q. What is the API pricing for Gemini 3.5 Flash? How much does it cost per 1M tokens?＋
Gemini 3.5 Flash (Google) is priced at $1.5000 per 1 million input tokens and $9.0000 per 1 million output tokens. The output rate is approximately 6.0x higher than the input rate. You can simulate your exact monthly API expenses tailored to your request volume and token length using the calculator above.
Q. What are the context window and maximum output limits of Gemini 3.5 Flash?＋
Gemini 3.5 Flash features a 1M context window and a maximum output limit of 65K tokens per request. This massive 1M+ context capacity allows you to process extensive document libraries or entire codebases in a single prompt.
Q. Does Gemini 3.5 Flash support Prompt Caching, and how much cost can be saved?＋
Yes, Gemini 3.5 Flash supports prompt caching. Cached reads cost $0.1500 per 1M tokens, delivering an estimated 90% discount compared to standard input rates. (Minimum cache threshold: 4K) Caching reusable system instructions and documentation substantially lowers recurring API expenses.
Q. What is the benchmark score (90.5) and performance profile of Gemini 3.5 Flash?＋
Gemini 3.5 Flash achieves an overall benchmark score of 90.5/100 with a "Blazing Fast" speed rating. It serves as a premier flagship model suited for complex reasoning, autonomous agents, and advanced coding.
Q. Which alternative models are comparable to Gemini 3.5 Flash?＋
Key alternatives in similar price-to-performance tiers include GPT-5, GPT-5.1, GPT-5.1-Codex-Max. We recommend comparing them based on your latency targets, context window needs, and prompt caching benefits using the full comparison tool on this site.