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Gemini 3.1 Flash-Lite Preview vs Gemini 3 Flash

Compare Google and Google AI models

Google
Gemini 3.1 Flash-Lite Preview
vs
Google
Gemini 3 Flash

Cost Comparison (1000 input + 500 output tokens, 100 requests/day)

Gemini 3.1 Flash-Lite Preview

Per Request:$0.001000
Daily:$0.10
Monthly:$3.00
Yearly:$36.50

Gemini 3 Flash

Per Request:$0.002000
Daily:$0.20
Monthly:$6.00
Yearly:$73.00

Cost Differences

+$0.001000
Per Request
+$0.10
Daily
+$3.00
Monthly
+$36.50
Yearly

Gemini 3 Flash costs more than Gemini 3.1 Flash-Lite Preview

Feature Comparison

FeatureGemini 3.1 Flash-Lite PreviewGemini 3 Flash
ProviderGoogleGoogle
Input Price$0.25/1M tokens$0.50/1M tokens
Output Price$1.50/1M tokens$3.00/1M tokens
Context Window1,000,000 tokens1,000,000 tokens
Max Output8,192 tokens65,536 tokens
Categoryefficientefficient
Capabilities
textvisioncode
textvisionaudiocode
Release Date3/3/202612/17/2025

Gemini 3.1 Flash-Lite Preview vs Gemini 3 Flash: Which Should You Choose?

Choosing between Gemini 3.1 Flash-Lite Preview and Gemini 3 Flash depends on your priorities: cost efficiency, context length, or raw capability. Gemini 3.1 Flash-Lite Preview is the more affordable option at $0.25/1M input tokens50% cheaper than Gemini 3 Flash.

Both models are in the efficient category, making this a direct head-to-head comparison. At scale — say 10,000 requests per day — the cost difference adds up: Gemini 3.1 Flash-Lite Preview would save you roughly $300.00/month compared to Gemini 3 Flash. For startups and indie developers, that difference can be significant.

Output costs matter too. Gemini 3.1 Flash-Lite Preview charges $1.50/1M output tokens vs $3.00 for Gemini 3 Flash. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Gemini 3.1 Flash-Lite Preview has the edge here at $1.50/1M output tokens.

Multimodal capabilities: Both models support vision (image understanding), so you can send images alongside text prompts with either option.

Best Use Cases

Choose Gemini 3.1 Flash-Lite Preview when:

  • • Budget is a primary concern
  • • You're already using Google's API ecosystem
  • • You're running high-volume, latency-sensitive workloads

Choose Gemini 3 Flash when:

  • • You need more capabilities (audio)
  • • You need longer outputs (up to 65,536 tokens)
  • • You're already using Google's API ecosystem
  • • You're running high-volume, latency-sensitive workloads

Try Different Scenarios

Use the calculator below to see how costs change with different usage patterns

Gemini 3.1 Flash-Lite Preview (Google)

Gemini 3 Flash (Google)

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Frequently Asked Questions

Which is cheaper, Gemini 3.1 Flash-Lite Preview or Gemini 3 Flash?
Gemini 3.1 Flash-Lite Preview is cheaper for input tokens at $0.25 per million tokens vs $0.50 for Gemini 3 Flash — that's 50% savings on input costs.
What is the context window difference between Gemini 3.1 Flash-Lite Preview and Gemini 3 Flash?
Gemini 3.1 Flash-Lite Preview supports 1,000,000 tokens while Gemini 3 Flash supports 1,000,000 tokens — a difference of 0 tokens in favor of Gemini 3.1 Flash-Lite Preview.
Which model is better for AI Chatbot?
Both models support text. For ai chatbot, Gemini 3.1 Flash-Lite Preview is the lower-cost option, while Gemini 3.1 Flash-Lite Preview offers a larger context window (1,000,000 vs 1,000,000 tokens). Choose Gemini 3.1 Flash-Lite Preview for budget sensitivity or Gemini 3.1 Flash-Lite Preview for longer context tasks.
Which model has better overall pricing for heavy usage?
At 100 requests/day with 1,000 input and 500 output tokens each, Gemini 3.1 Flash-Lite Preview costs about $3.00/month and Gemini 3 Flash costs about $6.00/month. Overall, Gemini 3.1 Flash-Lite Preview has lower combined input + output rates ($0.25 in, $1.50 out) vs Gemini 3 Flash.

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