Gemini 3.1 Flash Lite API Pricing

Google · released May 7, 2026 · 1.05M context · API model ID gemini-3.1-flash-lite

Gemini 3.1 Flash Lite by Google API pricing: $0.25 per 1M input tokens and $1.50 per 1M output tokens (verified against the official pricing page, Oct 9, 2026).

Prices

Gemini 3.1 Flash Lite prices, USD per 1M tokens
PriceUSD per 1M tokens
Input$0.25
Output$1.50
Cache read$0.025
Cache writeNot published
Batch input$0.125
Batch output$0.75
Audio input$0.50

Verified against the provider's official pricing page on Oct 9, 2026. Official pricing page Long-context and separately billed token prices, where shown, are list prices compiled by models.dev (checked Oct 10, 2026, 09:00 UTC).

Estimated monthly cost

$300.00

per month

per day
$10.00
per request
$0.001

Cost = input tokens × input price + output tokens × output price, 30 days a month. Cached input uses the cache read price. Cache write fees are not included.

Compare this workload across models

Monthly cost by workload

WorkloadPer month
Chatbot1,000 in / 500 out tokens, 10,000 requests a day$300.00/mo
RAG8,000 in / 500 out tokens, 5,000 requests a day$412.50/mo
Coding agent50,000 in / 2,000 out tokens, 1,000 requests a day, 80% cached input$195.00/mo

Context and capabilities

Context
1,048,576 tokens
Max output
65,536 tokens
Input
text, image, video, audio, pdf
Output
text
Knowledge cutoff
January 2025
Open weights
No
Tool calling
Yes
Reasoning
Yes
Structured outputs
Yes

Capabilities and limits as listed by models.dev.

Similarly priced models

Price history

No price changes since we started tracking on Oct 8, 2026.

Questions

How much does Gemini 3.1 Flash Lite cost per month?
For a chatbot handling 10,000 requests a day with 1,000 input and 500 output tokens each, Gemini 3.1 Flash Lite costs about $300.00 per month at the provider's official prices (verified) ($0.25 per 1M input tokens, $1.50 per 1M output tokens).
Does Gemini 3.1 Flash Lite support prompt caching?
Yes. Cached input costs $0.025 per 1M tokens, compared with $0.25 for regular input.
How long is Gemini 3.1 Flash Lite's context window?
Gemini 3.1 Flash Lite accepts up to 1,048,576 tokens (1.05M) of context and returns up to 65,536 tokens per response.
Does Gemini 3.1 Flash Lite have a batch price?
Yes. Asynchronous batch requests cost $0.125 per 1M input tokens and $0.75 per 1M output tokens.