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Gemini 2.5 Flash-Lite vs o3
Comprehensive side-by-side LLM comparison
o3 leads with 28.8% higher average benchmark score. Gemini 2.5 Flash-Lite offers 814.1K more tokens in context window than o3. Gemini 2.5 Flash-Lite is $9.50 cheaper per million tokens. Overall, o3 is the stronger choice for coding tasks.
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Gemini 2.5 Flash Lite was created as the most efficient option in the Gemini 2.5 family, designed to provide cutting-edge capabilities with minimal computational overhead. Built for applications where cost and latency are primary concerns, it extends advanced multimodal understanding to resource-conscious deployments.
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OpenAI
o3 represents the next generation in OpenAI's reasoning model series, developed to advance the capabilities of deliberate, step-by-step problem solving. Built to handle increasingly complex challenges across mathematics, science, and coding, it continues the evolution of reasoning-focused AI with improved analytical depth and accuracy.
2 months newer
o3
OpenAI
2025-04-16
Gemini 2.5 Flash-Lite
2025-06-17
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Pricing Comparison
Cost per million tokens (USD)
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Gemini 2.5 Flash-Lite
Input:$0.10
Output:$0.40($9.50 cheaper)
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o3
Input:$2.00
Output:$8.00
Performance Metrics
Context window and performance specifications
Average performance across 6 common benchmarks
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Gemini 2.5 Flash-Lite
Average Score:41.8%
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o3
Average Score:70.5%(+28.8%)
Performance comparison across key benchmark categories
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Gemini 2.5 Flash-Lite
Coding31.6%
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o3
Coding69.1%(+37.5%)
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Knowledge Cutoff
Training data recency comparison
o3
2024-05-31
Gemini 2.5 Flash-Lite
2025-01-01
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Gemini 2.5 Flash-Lite
1 providers
Throughput: 5.69 tok/s
Latency: 0.44ms
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o3
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Gemini 2.5 Flash-Lite
Avg Score:41.8%
Providers:1
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o3
Avg Score:70.5%(+28.8%)
Providers:1