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GPT-4o vs GPT-5 nano
Comprehensive side-by-side LLM comparison
GPT-4o leads with 30.8% higher average benchmark score. GPT-5 nano offers 395.9K more tokens in context window than GPT-4o. GPT-5 nano is $12.05 cheaper per million tokens. Overall, GPT-4o is the stronger choice for coding tasks.
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OpenAI
GPT-4o is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 77.4% across 8 benchmarks. It excels particularly in MGSM (90.5%), HumanEval (90.2%), MMLU (88.7%). It supports a 132K token context window for handling large documents. 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 2024, it represents OpenAI's latest advancement in AI technology.
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OpenAI
GPT-5 nano is a multimodal language model developed by OpenAI. The model shows competitive results across 5 benchmarks. It excels particularly in AIME 2025 (85.2%), HMMT 2025 (75.6%), GPQA (71.2%). It supports a 528K token context window for handling large documents. 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 OpenAI's latest advancement in AI technology.
1 year newer
GPT-4o
OpenAI
2024-05-13
GPT-5 nano
OpenAI
2025-08-07
Pricing Comparison
Cost per million tokens (USD)
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GPT-4o
Input:$2.50
Output:$10.00
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GPT-5 nano
Input:$0.05
Output:$0.40($12.05 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 12 common benchmarks
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GPT-4o
Average Score:51.6%(+30.8%)
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GPT-5 nano
Average Score:20.9%
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Knowledge Cutoff
Training data recency comparison
GPT-5 nano
2024-05-30
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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GPT-4o
2 providers
Azure
Throughput: 92 tok/s
Latency: 0.54ms
OpenAI
Throughput: 100 tok/s
Latency: 0.5ms
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GPT-4o
Avg Score:51.6%(+30.8%)
Providers:2
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GPT-5 nano
Avg Score:20.9%
Providers:2