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Gemini 1.5 Flash vs o4-mini
Comprehensive side-by-side LLM comparison
Gemini 1.5 Flash leads with 16.3% higher average benchmark score. Gemini 1.5 Flash offers 756.8K more tokens in context window than o4-mini. Gemini 1.5 Flash is $4.75 cheaper per million tokens. Overall, Gemini 1.5 Flash is the stronger choice for coding tasks.
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Gemini 1.5 Flash is a multimodal language model developed by Google. It achieves strong performance with an average score of 66.8% across 22 benchmarks. It excels particularly in XSTest (97.0%), HellaSwag (86.5%), GSM8k (86.2%). 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 2024, it represents Google's latest advancement in AI technology.
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OpenAI
o4-mini is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 66.5% across 14 benchmarks. It excels particularly in AIME 2024 (93.4%), AIME 2025 (92.7%), MathVista (84.3%). 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.
11 months newer
Gemini 1.5 Flash
2024-05-01
o4-mini
OpenAI
2025-04-16
Pricing Comparison
Cost per million tokens (USD)
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Gemini 1.5 Flash
Input:$0.15
Output:$0.60($4.75 cheaper)
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o4-mini
Input:$1.10
Output:$4.40
Performance Metrics
Context window and performance specifications
Average performance across 33 common benchmarks
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Gemini 1.5 Flash
Average Score:44.5%(+16.3%)
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o4-mini
Average Score:28.2%
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Knowledge Cutoff
Training data recency comparison
Gemini 1.5 Flash
2023-11-01
o4-mini
2024-05-31
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 1.5 Flash
1 providers
Throughput: 150 tok/s
Latency: 0.3ms
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o4-mini
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Gemini 1.5 Flash
Avg Score:44.5%(+16.3%)
Providers:1
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o4-mini
Avg Score:28.2%
Providers:1