Gemini 3.5 Flash API Pricing
Short answer
Gemini 3.5 Flash costs $1.50 per 1M input tokens and $9.00 per 1M output tokens (cached input $0.15/1M). Context window: 1,048,576. Last verified 2026-06-17 from cloud.google.com. Confidence: Verified.
Gemini 3.5 Flash is Google's newest GA model, positioned to beat 3.1 Pro on coding and agentic tasks at lower cost.
Input
$1.50 /1M
Output
$9.00 /1M
Cached input
$0.15 /1M
Input pricing$1.50
Cached input$0.15
Output pricing$9.00
Limits & capabilities
Context window1,048,576
Max output65,536
Modalitytext/image/video/audio input, text output
ChannelGoogle Vertex AI
ProviderGoogle Gemini
Best for
CodingAgenticFast
Batch/Flex: $0.75 input / $4.50 output. Thinking tokens billed as output.
Last checked Verified
More from Google Gemini
Gemini 3.1 Pro
$2.00 /1M in
$12.00 /1M out
Reasoning, Agentic, Long context
Gemini 3.1 Flash-Lite
$0.25 /1M in
$1.50 /1M out
Low cost, High volume, Fast
Gemini 2.5 Pro
$1.25 /1M in
$10.00 /1M out
Reasoning, Long context, Multimodal
Gemini 2.5 Flash
$0.30 /1M in
$2.50 /1M out
Low latency, High volume, Multimodal
Gemini 2.5 Flash-Lite
$0.10 /1M in
$0.40 /1M out
Lowest cost, High volume
Imagen 4
— /1M in
— /1M out
Photoreal, Text-to-image, Bulk