How much does Gemini 3.1 Flash Lite Preview 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 Preview costs about $300.00 per month at Google's list prices ($0.25 per 1M input tokens, $1.50 per 1M output tokens).

Does Gemini 3.1 Flash Lite Preview 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 Preview's context window?

Gemini 3.1 Flash Lite Preview accepts up to 1,048,576 tokens (1.05M) of context and returns up to 65,536 tokens per response.

Gemini 3.1 Flash Lite Preview API Pricing

Google has deprecated this model. The price is kept here for reference; check the provider's documentation before building on it.

Google · released Mar 3, 2026 · 1.05M context · API model ID gemini-3.1-flash-lite-preview

Gemini 3.1 Flash Lite Preview by Google API pricing: $0.25 per 1M input tokens and $1.50 per 1M output tokens (provider list price via models.dev, Oct 10, 2026).

Prices

Gemini 3.1 Flash Lite Preview prices, USD per 1M tokens
Price	USD per 1M tokens
Input	$0.25
Output	$1.50
Cache read	$0.025
Cache write	Not published
Audio input	$0.50

Google's list price for its own API, as compiled by models.dev and checked Oct 10, 2026, 09:00 UTC. Prices on cloud platforms and resellers can differ. Provider documentation

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

Workload	Per 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

GLM-5.3-FlashX · $0.37 in / $1.25 out
DeepSeek V4.1 Flash · $0.30 in / $1.20 out
MiniMax-M3 · $0.30 in / $1.20 out
Gemini 3.5 Flash Lite · $0.30 in / $2.50 out

Price history

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

Questions

How much does Gemini 3.1 Flash Lite Preview 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 Preview costs about $300.00 per month at Google's list prices ($0.25 per 1M input tokens, $1.50 per 1M output tokens).
Does Gemini 3.1 Flash Lite Preview 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 Preview's context window?: Gemini 3.1 Flash Lite Preview accepts up to 1,048,576 tokens (1.05M) of context and returns up to 65,536 tokens per response.