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Gemini 2.5 Flash-Lite vs o3
Comprehensive side-by-side LLM comparison
o3 leads with 32.9% 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 is a multimodal language model developed by Google. The model shows competitive results across 13 benchmarks. It excels particularly in FACTS Grounding (84.1%), Global-MMLU-Lite (81.1%), MMMU (72.9%). With a 1.1M token context window, it can handle extensive documents and complex multi-turn conversations. The model is available through 1 API provider. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents Google's latest advancement in AI technology.
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OpenAI
o3 is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 67.5% across 22 benchmarks. It excels particularly in COLLIE (98.4%), AIME 2024 (91.6%), ARC-AGI (88.0%). It supports a 300K token context window for handling large documents. The model is available through 1 API provider. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents OpenAI's latest advancement in AI technology.
2 months newer
o3
OpenAI
2025-04-16
Gemini 2.5 Flash-Lite
2025-06-17
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 29 common benchmarks
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Gemini 2.5 Flash-Lite
Average Score:18.3%
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o3
Average Score:51.2%(+32.9%)
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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:18.3%
Providers:1
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o3
Avg Score:51.2%(+32.9%)
Providers:1