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Gemini 2.5 Pro vs o3
Comprehensive side-by-side LLM comparison
o3 leads with 12.4% higher average benchmark score. Gemini 2.5 Pro offers 814.1K more tokens in context window than o3. o3 is $1.25 cheaper per million tokens. Overall, o3 is the stronger choice for coding tasks.
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Gemini 2.5 Pro is a multimodal language model developed by Google. It achieves strong performance with an average score of 69.6% across 16 benchmarks. It excels particularly in MRCR (93.0%), AIME 2024 (92.0%), Global-MMLU-Lite (88.6%). 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 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.
1 month newer
o3
OpenAI
2025-04-16
Gemini 2.5 Pro
2025-05-20
Pricing Comparison
Cost per million tokens (USD)
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Gemini 2.5 Pro
Input:$1.25
Output:$10.00
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o3
Input:$2.00
Output:$8.00($1.25 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 30 common benchmarks
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Gemini 2.5 Pro
Average Score:37.1%
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o3
Average Score:49.5%(+12.4%)
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Knowledge Cutoff
Training data recency comparison
o3
2024-05-31
Gemini 2.5 Pro
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 Pro
2 providers
Throughput: 85 tok/s
Latency: 0.7ms
ZeroEval
Throughput: 85 tok/s
Latency: 0.7ms
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Gemini 2.5 Pro
Avg Score:37.1%
Providers:2
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o3
Avg Score:49.5%(+12.4%)
Providers:1