Comprehensive side-by-side LLM comparison
DeepSeek-V3.1 leads with 17.3% higher average benchmark score. DeepSeek-V3.1 offers 71.7K more tokens in context window than Llama 3.1 405B Instruct. DeepSeek-V3.1 is $0.51 cheaper per million tokens. Llama 3.1 405B Instruct is available on 8 providers. Overall, DeepSeek-V3.1 is the stronger choice for coding tasks.
DeepSeek
DeepSeek-V3.1 was developed as an incremental advancement over DeepSeek-V3, designed to refine the mixture-of-experts architecture with improved training techniques. Built to enhance quality and efficiency while maintaining the open-source philosophy, it represents continued iteration on DeepSeek's flagship model line.
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.
5 months newer

Llama 3.1 405B Instruct
Meta
2024-07-23

DeepSeek-V3.1
DeepSeek
2025-01-10
Cost per million tokens (USD)

DeepSeek-V3.1

Llama 3.1 405B Instruct
Context window and performance specifications
Average performance across 2 common benchmarks

DeepSeek-V3.1

Llama 3.1 405B Instruct
Available providers and their performance metrics

DeepSeek-V3.1
DeepInfra
Novita

Llama 3.1 405B Instruct

DeepSeek-V3.1

Llama 3.1 405B Instruct

DeepSeek-V3.1

Llama 3.1 405B Instruct
Bedrock
DeepInfra
Fireworks
Hyperbolic
Lambda
Replicate
Together