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Claude 3 Sonnet vs GPT-5 nano
Comprehensive side-by-side LLM comparison
Claude 3 Sonnet leads with 37.5% higher average benchmark score. GPT-5 nano offers 128.0K more tokens in context window than Claude 3 Sonnet. GPT-5 nano is $17.55 cheaper per million tokens. Overall, Claude 3 Sonnet is the stronger choice for coding tasks.
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Anthropic
Claude 3 Sonnet is a multimodal language model developed by Anthropic. It achieves strong performance with an average score of 73.8% across 11 benchmarks. It excels particularly in ARC-C (93.2%), GSM8k (92.3%), HellaSwag (89.0%). It supports a 400K token context window for handling large documents. The model is available through 3 API providers. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2024, it represents Anthropic'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
Claude 3 Sonnet
Anthropic
2024-02-29
GPT-5 nano
OpenAI
2025-08-07
Pricing Comparison
Cost per million tokens (USD)
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Claude 3 Sonnet
Input:$3.00
Output:$15.00
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GPT-5 nano
Input:$0.05
Output:$0.40($17.55 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 15 common benchmarks
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Claude 3 Sonnet
Average Score:54.1%(+37.5%)
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GPT-5 nano
Average Score:16.7%
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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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Claude 3 Sonnet
3 providers
Anthropic
Throughput: 100 tok/s
Latency: 0.5ms
Bedrock
Throughput: 120 tok/s
Latency: 0.5ms
Throughput: 42 tok/s
Latency: 0.4ms
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Claude 3 Sonnet
Avg Score:54.1%(+37.5%)
Providers:3
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GPT-5 nano
Avg Score:16.7%
Providers:2