DeepSeek V3 vs Llama 3.1 405B

Side-by-side comparison of specifications, capabilities, and pricing.

	DeepSeek V3 DeepSeek	Llama 3.1 405B AI at Meta
Released	2024-12-26	2024-07-23
Context window	64k	128K
Parameters	671B	405B
Architecture	mixture of experts	decoder only
License	Open Source	Open Source
Knowledge cutoff	2024-04	—
Capabilities
Vision
Multimodal
Reasoning
Function calling
Tool use
Structured Outputs
Code execution
Availability
Providers	DeepInfra Fireworks AI DeepSeek Platform Microsoft Foundry OpenRouter NVIDIA NIM AWS Bedrock Together AI Bitdeer AI SiliconFlow Replicate API	—

Benchmarks

HellaSwag95.795.8HumanEval85.589.0Massive Multitask Language Understanding88.588.6LiveCodeBench49.6—Aider Polyglot48.4—BigCodeBench50.0—Chatbot Arena1302.01228.0MMLU PRO75.9—Google-Proof Q&A—51.5

Full DeepSeek V3 specs →Full Llama 3.1 405B specs →