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Gemini 3.1 Flash-Lite Preview vs o1

Gemini 3.1 Flash-Lite Preview vs o1: Gemini 3.1 Flash-Lite Preview is cheaper for input-heavy usage ($0.25/M vs $15.00/M input tokens), while Gemini 3.1 Flash-Lite Preview is better for long-context tasks (1,000,000 tokens).

Direct answer: choose Gemini 3.1 Flash-Lite Preview for lower token spend and choose Gemini 3.1 Flash-Lite Preview when your workload needs longer context.

Compare input and output token pricing, context windows, and monthly cost estimates on one page so you can pick the cheaper model fast.

Google
Gemini 3.1 Flash-Lite Preview
vs
OpenAI
o1

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

o1

Per Request:$0.045
Daily:$4.50
Monthly:$135.00
Yearly:$1,642.50

Cost Differences

+$0.044
Per Request
+$4.40
Daily
+$132.00
Monthly
+$1,606.00
Yearly

o1 costs more than Gemini 3.1 Flash-Lite Preview

Quick Recommendation

Winner for direct API pricing: Gemini 3.1 Flash-Lite Preview. At the default workload, Gemini 3.1 Flash-Lite Preview saves about $132.00/month ($1,606.00/year) versus o1.

Feature Comparison

FeatureGemini 3.1 Flash-Lite Previewo1
ProviderGoogleOpenAI
Input Price$0.25/1M tokens$15.00/1M tokens
Output Price$1.50/1M tokens$60.00/1M tokens
Context Window1,000,000 tokens200,000 tokens
Max Output8,192 tokens65,536 tokens
Categoryefficientreasoning
Capabilities
textvisioncode
textreasoning
Release Date3/3/20269/12/2024

Gemini 3.1 Flash-Lite Preview vs o1: Which Should You Choose?

Choosing between Gemini 3.1 Flash-Lite Preview and o1 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 tokens98% cheaper than o1. Meanwhile, Gemini 3.1 Flash-Lite Preview offers a significantly larger context window at 1,000,000 tokens vs 200,000 for o1.

These models come from different providers — Google and OpenAI — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with Google, switching to OpenAIinvolves migration effort beyond just pricing. Factor in your existing infrastructure when deciding.

These models target different tiers: Gemini 3.1 Flash-Lite Preview is a efficient model while o1 is reasoning. This means they're optimized for different workloads. o1 targets more demanding workloads, while Gemini 3.1 Flash-Lite Preview provides a cost-effective option for everyday tasks.

Output costs matter too. Gemini 3.1 Flash-Lite Preview charges $1.50/1M output tokens vs $60.00 for o1. 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: Gemini 3.1 Flash-Lite Preview supports vision (image inputs) while o1 is text-only. If your application needs image understanding, this narrows your choice.

Best Use Cases

Choose Gemini 3.1 Flash-Lite Preview when:

  • • Budget is a primary concern
  • • You need a larger context window (1,000,000 tokens)
  • • You need more capabilities (vision, code)
  • • You're already using Google's API ecosystem
  • • You're running high-volume, latency-sensitive workloads

Choose o1 when:

  • • You need longer outputs (up to 65,536 tokens)
  • • You're already using OpenAI's API ecosystem

Pros and Caveats at a Glance

Gemini 3.1 Flash-Lite Preview

  • Input pricing: $0.25/M tokens
  • Output pricing: $1.50/M tokens
  • Context window: 1,000,000 tokens
  • Max output: 8,192 tokens

Watch out for

  • Trade-offs are minor in this matchup.

o1

  • Input pricing: $15.00/M tokens
  • Output pricing: $60.00/M tokens
  • Context window: 200,000 tokens
  • Max output: 65,536 tokens

Watch out for

  • Higher input cost than Gemini 3.1 Flash-Lite Preview
  • Higher output cost than Gemini 3.1 Flash-Lite Preview
  • Smaller context window than Gemini 3.1 Flash-Lite Preview

Try Different Scenarios

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

Gemini 3.1 Flash-Lite Preview (Google)

o1 (OpenAI)

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Frequently Asked Questions

Which is cheaper, Gemini 3.1 Flash-Lite Preview or o1?
Gemini 3.1 Flash-Lite Preview is cheaper for input tokens at $0.25 per million tokens vs $15.00 for o1 — that's 98% savings on input costs.
What is the context window difference between Gemini 3.1 Flash-Lite Preview and o1?
Gemini 3.1 Flash-Lite Preview supports 1,000,000 tokens while o1 supports 200,000 tokens — a difference of 800,000 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 200,000 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 o1 costs about $135.00/month. Overall, Gemini 3.1 Flash-Lite Preview has lower combined input + output rates ($0.25 in, $1.50 out) vs o1.
Where can I compare Google and OpenAI API pricing beyond this model matchup?
See the Google vs OpenAI provider comparison page for lineup-level averages, then review each model page for exact per-token rates.

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