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Claude Sonnet 4.5 vs Llama 3.1 8B Instruct
Comprehensive side-by-side LLM comparison
Llama 3.1 8B Instruct leads with 16.2% higher average benchmark score. Claude Sonnet 4.5 offers 1.9K more tokens in context window than Llama 3.1 8B Instruct. Llama 3.1 8B Instruct is $17.94 cheaper per million tokens. Claude Sonnet 4.5 supports multimodal inputs. Llama 3.1 8B Instruct is available on 9 providers. Overall, Llama 3.1 8B Instruct is the stronger choice for coding tasks.
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Anthropic
Claude Sonnet 4.5 is a multimodal language model developed by Anthropic. It achieves strong performance with an average score of 75.8% across 9 benchmarks. It excels particularly in MMMLU (89.1%), AIME 2025 (87.0%), TAU-bench Retail (86.2%). It supports a 264K 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 Anthropic's latest advancement in AI technology.
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Meta
Llama 3.1 8B Instruct is a language model developed by Meta. It achieves strong performance with an average score of 61.3% across 18 benchmarks. It excels particularly in GSM-8K (CoT) (84.5%), ARC-C (83.4%), API-Bank (82.6%). It supports a 262K token context window for handling large documents. The model is available through 9 API providers. Released in 2024, it represents Meta's latest advancement in AI technology.
1 year newer
Llama 3.1 8B Instruct
Meta
2024-07-23
Claude Sonnet 4.5
Anthropic
2025-09-29
Pricing Comparison
Cost per million tokens (USD)
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Claude Sonnet 4.5
Input:$3.00
Output:$15.00
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Llama 3.1 8B Instruct
Input:$0.03
Output:$0.03($17.94 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 26 common benchmarks
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Claude Sonnet 4.5
Average Score:26.2%
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Llama 3.1 8B Instruct
Average Score:42.5%(+16.2%)
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Knowledge Cutoff
Training data recency comparison
Llama 3.1 8B Instruct
2023-12-31
Claude Sonnet 4.5
2025-01-31
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Claude Sonnet 4.5
2 providers
Anthropic
Throughput: 42 tok/s
Latency: 0.4ms
ZeroEval
Throughput: 42 tok/s
Latency: 0.4ms
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Claude Sonnet 4.5
Avg Score:26.2%
Providers:2
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Llama 3.1 8B Instruct
Avg Score:42.5%(+16.2%)
Providers:9