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Claude 3.5 Sonnet vs Claude Opus 4
Comprehensive side-by-side LLM comparison
Claude 3.5 Sonnet leads with 10.3% higher average benchmark score. Claude 3.5 Sonnet offers 72.0K more tokens in context window than Claude Opus 4. Claude 3.5 Sonnet is $72.00 cheaper per million tokens. Claude Opus 4 is available on 4 providers. 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. This model demonstrates exceptional performance with an average score of 84.1% across 9 benchmarks. It excels particularly in GSM8k (96.4%), BIG-Bench Hard (93.1%), HumanEval (92.0%). It supports a 400K 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 Anthropic's latest advancement in AI technology.
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Anthropic
Claude Opus 4 is a multimodal language model developed by Anthropic. It achieves strong performance with an average score of 64.6% across 9 benchmarks. It excels particularly in MMMLU (88.8%), TAU-bench Retail (81.4%), GPQA (79.6%). It supports a 328K 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.
11 months newer
Claude 3.5 Sonnet
Anthropic
2024-06-21
Claude Opus 4
Anthropic
2025-05-22
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
Input:$15.00
Output:$75.00
Performance Metrics
Context window and performance specifications
Average performance across 17 common benchmarks
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Claude 3.5 Sonnet
Average Score:44.5%(+10.3%)
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Claude Opus 4
Average Score:34.2%
Provider Availability & Performance
Available providers and their performance metrics
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Claude 3.5 Sonnet
2 providers
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:44.5%(+10.3%)
Providers:2
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Claude Opus 4
Avg Score:34.2%
Providers:4