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Claude Opus 4.1 vs Llama 3.1 405B Instruct
Comprehensive side-by-side LLM comparison
Claude Opus 4.1 leads with 30.2% higher average benchmark score. Llama 3.1 405B Instruct offers 24.0K more tokens in context window than Claude Opus 4.1. Llama 3.1 405B Instruct is $88.22 cheaper per million tokens. Claude Opus 4.1 supports multimodal inputs. Llama 3.1 405B Instruct is available on 8 providers. Overall, Claude Opus 4.1 is the stronger choice for coding tasks.
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Anthropic
Claude Opus 4.1 represents an iteration within the Claude 4 Opus line, built to deliver refined performance in complex reasoning and analysis tasks. Developed as part of Anthropic's flagship tier, it incorporates improvements to the foundational capabilities that define the Opus family of models.
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Meta
Llama 3.1 405B was developed as Meta's largest open-source language model, designed to provide frontier-level capabilities with 405 billion parameters. Built to demonstrate that open-source models can match proprietary systems in capability, it enables researchers and developers to experiment with and deploy a powerful foundation model without licensing restrictions.
1 year newer
Llama 3.1 405B Instruct
Meta
2024-07-23
Claude Opus 4.1
Anthropic
2025-08-05
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Pricing Comparison
Cost per million tokens (USD)
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Claude Opus 4.1
Input:$15.00
Output:$75.00
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Llama 3.1 405B Instruct
Input:$0.89
Output:$0.89($88.22 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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Claude Opus 4.1
Average Score:80.9%(+30.2%)
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Llama 3.1 405B Instruct
Average Score:50.7%
Provider Availability & Performance
Available providers and their performance metrics
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Claude Opus 4.1
4 providers
Anthropic
Throughput: 100 tok/s
Latency: 0.5ms
Bedrock
Throughput: 120 tok/s
Latency: 0.5ms
Throughput: 42 tok/s
Latency: 0.4ms
ZeroEval
Throughput: 42 tok/s
Latency: 0.4ms
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Claude Opus 4.1
Avg Score:80.9%(+30.2%)
Providers:4
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Llama 3.1 405B Instruct
Avg Score:50.7%
Providers:8