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Gemini 2.5 Flash Lite Preview 09-2025 vs o1-pro

How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Gemini 2.5 Flash Lite Preview 09-2025 and o1-pro.

Google

Gemini 2.5 Flash Lite Preview 09-2025

Gemini 2.5 Flash-Lite is a lightweight reasoning model in the Gemini 2.5 family, optimized for ultra-low latency and cost efficiency. It offers improved throughput, faster token generation, and better performance...

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OpenAI

o1-pro

The o1 series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o1-pro model uses more compute to think harder and provide...

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Technical Specifications

SpecificationGemini 2.5 Flash Lite Preview 09-2025o1-pro
ProviderGoogleOpenAI
Context Window1,048,576 tokens200,000 tokens
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apimanaged api
Production Stabilitybetastable
API AvailableYesYes
Released Date2025-09-252025-03-19

API Pricing Comparison

Input Price per Million Tokens

Gemini 2.5 Flash Lite Preview 09-2025

$0.10

o1-pro

$150.00

Output Price per Million Tokens

Gemini 2.5 Flash Lite Preview 09-2025

$0.40

o1-pro

$600.00

Want to test both models live?

Run side-by-side prompt prompts in our dynamic Sandbox. Check execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.

Gemini 2.5 Flash Lite Preview 09-2025 Quirks & Gotchas

No developer gotchas reported.

o1-pro Quirks & Gotchas

No developer gotchas reported.