Rankings›Compare›Llama 3.1 405B vs Claude 3.5 Sonnet

Llama 3.1 405BvsClaude 3.5 Sonnet

Llama 3.1 405B

Meta's open-source frontier model

Arena ELO

1247

Context

128K

Speed

45 t/s

Input/1M

$0.9

Anthropic

Claude 3.5 Sonnet

🏆 Overall Winner

Anthropic's most intelligent model

Arena ELO

1298

Context

200K

Speed

85 t/s

Input/1M

Capability Radar

Category performance across 6 domains

Benchmark Scores

MMLU · HumanEval · MATH · GSM8K · GPQA · BBH

Llama 3.1 405B

Pros

✓Fully open-source and free to deploy

✓No data leaves your infrastructure

✓Competitive benchmarks

Cons

✗Requires significant compute to self-host

✗No official vendor support

Claude 3.5 Sonnet

Pros

✓Best coding (SWE-bench leader)

✓200K context window

✓Exceptional instruction following

Cons

✗Slower than GPT-4o

✗No native audio capabilities

🏆 Our Verdict

Based on overall benchmark averages, Claude 3.5 Sonnet has the edge with an average score of 84.6% across all benchmarks. However, the best choice depends on your use case — Llama 3.1 405B excels in fully open-source and free to deploy, while Claude 3.5 Sonnet stands out for best coding (swe-bench leader).

More Comparisons

Llama 3.1 405B vs GPT-4o →Claude 3.5 Sonnet vs GPT-4o →Llama 3.1 405B vs Gemini 1.5 Pro →Claude 3.5 Sonnet vs Gemini 1.5 Pro →Llama 3.1 405B vs Grok 2 →Claude 3.5 Sonnet vs Grok 2 →Llama 3.1 405B vs Mistral Large 2 →Claude 3.5 Sonnet vs Mistral Large 2 →