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Gemini 2.5 Flash vs o3-mini
Comprehensive side-by-side LLM comparison
Gemini 2.5 Flash leads with 3.5% 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. Both models have their strengths depending on your specific coding needs.
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Gemini 2.5 Flash represents a continued evolution of Google's efficient multimodal models, designed to deliver enhanced capabilities while maintaining the performance characteristics valued in the Flash series. Built to serve high-throughput applications with improved quality, it advances the balance between speed and intelligence.
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OpenAI
o3-mini was created as an efficient variant of the o3 reasoning model, designed to provide advanced thinking capabilities with reduced computational requirements. Built to make next-generation reasoning accessible to a broader range of applications, it balances analytical depth with practical speed and cost considerations.
3 months newer
o3-mini
OpenAI
2025-01-30
Gemini 2.5 Flash
2025-05-20
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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 6 common benchmarks
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Gemini 2.5 Flash
Average Score:62.8%(+3.5%)
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o3-mini
Average Score:59.3%
Performance comparison across key benchmark categories
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Gemini 2.5 Flash
Coding60.4%(+11.1%)
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o3-mini
Coding49.3%
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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:62.8%(+3.5%)
Providers:2
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o3-mini
Avg Score:59.3%
Providers:2