Gemini 3.1 Flash Lite vs Gemini 2.5 Flash: Pricing Comparison
Compare pricing, capabilities, and costs for your LLM workloads.
Gemini 3.1 Flash Lite
Pricing (per 1M tokens)
Input$0.2500
Output$1.50
Cached Input$0.0250
Batch Input$0.1250
Batch Output$0.7500
Context & Output
Context Window1M tokens
Max Output65.5K tokens
Capabilities
Categorybudget
Multimodaltext + image + audio
Fine-tuningNo
StreamingYes
Gemini 2.5 Flash
Pricing (per 1M tokens)
Input$0.3000
Output$2.50
Cached Input$0.0300
Batch Input$0.1500
Batch Output$1.25
Context & Output
Context Window1M tokens
Max Output65.5K tokens
Capabilities
Categorymid
Multimodaltext + image + audio
Fine-tuningNo
StreamingYes
Quick Verdict
Cheaper Input Price
Gemini 3.1 Flash Lite
16.7% cheaper
Cheaper Output Price
Gemini 3.1 Flash Lite
40.0% cheaper
Larger Context Window
Gemini 2.5 Flash
+0 tokens
Cost Comparison
Sample workload: 1,000,000 input tokens + 1,000,000 output tokens
Gemini 3.1 Flash Lite
$1.75
$0.2500/1M input + $1.50/1M output
Gemini 2.5 Flash
$2.80
$0.3000/1M input + $2.50/1M output
Gemini 3.1 Flash Lite is 37.5% cheaper for this workload.
Frequently Asked Questions
Which is cheaper, Gemini 3.1 Flash Lite or Gemini 2.5 Flash?
For input tokens, Gemini 3.1 Flash Lite is cheaper at $0.2500 per 1M tokens. For output tokens, Gemini 3.1 Flash Lite is cheaper at $1.50 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of Gemini 3.1 Flash Lite vs Gemini 2.5 Flash?
Gemini 3.1 Flash Lite has a context window of 1M tokens, while Gemini 2.5 Flash has 1M tokens. Gemini 3.1 Flash Lite supports a larger context window of 1M tokens, which is beneficial for processing longer documents.
How do Gemini 3.1 Flash Lite and Gemini 2.5 Flash compare for batch processing?
Both models support batch processing with discounted rates. Gemini 3.1 Flash Lite offers a better batch rate at $0.1250 per 1M input tokens. Batch processing is ideal for non-time-sensitive workloads where you can wait for processing.
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