Versus Engine
DeepSeek-V4.1-Flash vs Llama 3.1 405B
Specs, price and the one trade-off that actually decides it — DeepSeek-V4.1-Flash against Llama 3.1 405B, side by side.
Cheaper to start
Llama 3.1 405B
Has a free tier.
Best ecosystem
Tie
Neither lists native integrations.
Standout
DeepSeek-V4.1-Flash
High peak throughput
DeepSeek-V4.1-Flash
DeepSeek-V4.1-Flash, a conversational AI model.
Where it wins, where it doesn't
Pros
- High peak throughput
- Peak/off-peak pricing offers cost savings
Cons
- Smaller KV cache and limited storage capacity
Llama 3.1 405B
Meta's open-weights behemoth.
Where it wins, where it doesn't
Pros
- Open weights
- GPT-4 level reasoning
- High context length (131072)
- Large vocabulary size (128256)
Cons
- Requires massive VRAM to run locally
- Complex architecture with many parameters