Llama 3.1 405BvsGemini 1.5 Pro
Meta
🏆 Overall WinnerLlama 3.1 405B
Meta's open-source frontier model
Arena ELO
1247
Context
128K
Speed
45 t/s
Input/1M
$0.9
Google
Gemini 1.5 Pro
Google's 1M-token multimodal model
Arena ELO
1261
Context
1000K
Speed
150 t/s
Input/1M
$1.25
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
Gemini 1.5 Pro
Pros
✓1M token context window
✓Fastest response times
✓Best price-to-performance
Cons
✗Slightly lower reasoning vs GPT-4o/Claude
✗Less consistent instruction following
🏆 Our Verdict
Based on overall benchmark averages, Llama 3.1 405B has the edge with an average score of 81.2% 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 Gemini 1.5 Pro stands out for 1m token context window.