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Gemini 2.5 Flash vs o3-mini
Comprehensive side-by-side LLM comparison
o3-mini leads with 17.8% higher average benchmark score. Gemini 2.5 Flash offers 814.1K more tokens in context window than o3-mini. Gemini 2.5 Flash is $2.70 cheaper per million tokens. Gemini 2.5 Flash supports multimodal inputs. Overall, o3-mini is the stronger choice for coding tasks.
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Gemini 2.5 Flash is a multimodal language model developed by Google. It achieves strong performance with an average score of 62.5% across 14 benchmarks. It excels particularly in Global-MMLU-Lite (88.4%), AIME 2024 (88.0%), FACTS Grounding (85.3%). With a 1.1M token context window, it can handle extensive documents and complex multi-turn conversations. The model is available through 2 API providers. 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-mini is a language model developed by OpenAI. The model shows competitive results across 26 benchmarks. It excels particularly in COLLIE (98.7%), MATH (97.9%), IFEval (93.9%). It supports a 300K token context window for handling large documents. The model is available through 2 API providers. Released in 2025, it represents OpenAI's latest advancement in AI technology.
3 months newer
o3-mini
OpenAI
2025-01-30
Gemini 2.5 Flash
2025-05-20
Pricing Comparison
Cost per million tokens (USD)
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Gemini 2.5 Flash
Input:$0.30
Output:$2.50($2.70 cheaper)
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o3-mini
Input:$1.10
Output:$4.40
Performance Metrics
Context window and performance specifications
Average performance across 34 common benchmarks
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Gemini 2.5 Flash
Average Score:25.7%
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o3-mini
Average Score:43.5%(+17.8%)
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Knowledge Cutoff
Training data recency comparison
o3-mini
2023-09-30
Gemini 2.5 Flash
2025-01-31
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
2 providers
Throughput: 85 tok/s
Latency: 0.7ms
ZeroEval
Throughput: 85 tok/s
Latency: 0.7ms
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Gemini 2.5 Flash
Avg Score:25.7%
Providers:2
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o3-mini
Avg Score:43.5%(+17.8%)
Providers:2