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Claude Sonnet 4.5 vs Llama 3.1 70B Instruct
Comprehensive side-by-side LLM comparison
Claude Sonnet 4.5 leads with 41.7% higher average benchmark score. Claude Sonnet 4.5 offers 8.0K more tokens in context window than Llama 3.1 70B Instruct. Llama 3.1 70B Instruct is $17.60 cheaper per million tokens. Claude Sonnet 4.5 supports multimodal inputs. Llama 3.1 70B Instruct is available on 9 providers. Overall, Claude Sonnet 4.5 is the stronger choice for coding tasks.
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Anthropic
Claude Sonnet 4.5 was developed to bridge human thinking and machine assistance, allowing people to work with language and tools in a more conversational and natural way. Built with a focus on turning ideas into results, it represents an evolution in making AI feel less mechanical while maintaining strong capabilities across reasoning, coding, and collaborative tasks.
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Meta
Llama 3.1 70B was created as a balanced open-source model, designed to provide strong performance with 70 billion parameters while remaining practical for many deployment scenarios. Built to serve as a versatile foundation for fine-tuning and application development, it combines capability with accessibility in the open-source ecosystem.
1 year newer
Llama 3.1 70B Instruct
Meta
2024-07-23
Claude Sonnet 4.5
Anthropic
2025-09-29
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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 70B Instruct
Input:$0.20
Output:$0.20($17.60 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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Claude Sonnet 4.5
Average Score:83.4%(+41.7%)
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Llama 3.1 70B Instruct
Average Score:41.7%
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Knowledge Cutoff
Training data recency comparison
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:83.4%(+41.7%)
Providers:2
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Llama 3.1 70B Instruct
Avg Score:41.7%
Providers:9