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Claude 3.5 Sonnet vs Claude Opus 4.1
Comprehensive side-by-side LLM comparison
Claude 3.5 Sonnet leads with 35.3% higher average benchmark score. Claude 3.5 Sonnet offers 168.0K more tokens in context window than Claude Opus 4.1. Claude 3.5 Sonnet is $72.00 cheaper per million tokens. Overall, Claude 3.5 Sonnet is the stronger choice for coding tasks.
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Anthropic
Claude 3.5 Sonnet is a multimodal language model developed by Anthropic. It achieves strong performance with an average score of 73.3% across 19 benchmarks. It excels particularly in GSM8k (96.4%), DocVQA (95.2%), AI2D (94.7%). 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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Anthropic
Claude Opus 4.1 is a multimodal language model developed by Anthropic. It achieves strong performance with an average score of 72.7% across 8 benchmarks. It excels particularly in MMMLU (89.5%), TAU-bench Retail (82.4%), GPQA (80.9%). It supports a 232K token context window for handling large documents. The model is available through 4 API providers. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents Anthropic's latest advancement in AI technology.
9 months newer
Claude 3.5 Sonnet
Anthropic
2024-10-22
Claude Opus 4.1
Anthropic
2025-08-05
Pricing Comparison
Cost per million tokens (USD)
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Claude 3.5 Sonnet
Input:$3.00
Output:$15.00($72.00 cheaper)
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Claude Opus 4.1
Input:$15.00
Output:$75.00
Performance Metrics
Context window and performance specifications
Average performance across 23 common benchmarks
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Claude 3.5 Sonnet
Average Score:60.6%(+35.3%)
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Claude Opus 4.1
Average Score:25.3%
Provider Availability & Performance
Available providers and their performance metrics
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Claude 3.5 Sonnet
3 providers
Anthropic
Throughput: 100 tok/s
Latency: 0.5ms
Bedrock
Throughput: 101 tok/s
Latency: 0.5ms
Throughput: 42 tok/s
Latency: 0.4ms
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Claude 3.5 Sonnet
Avg Score:60.6%(+35.3%)
Providers:3
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Claude Opus 4.1
Avg Score:25.3%
Providers:4