Llama 3.1 405B (fw)
Largest dense Llama. Used as a quality benchmark for open weights, heavy to run, often hosted via Together / DeepInfra / Cerebras.
Llama 3.1 405B (fw) is a frontier AI model from Fireworks AI. It costs $3.000 per million input tokens and $3.000 per million output tokens (blended $3.000/M), with a 131,000-token context window.
Profile inherited from upstream Llama 3.1 405B ↗ — this is a hosted variant of the same open-weights model.
- Top open-weights quality
- Permissive license
- Strong reasoning
- Open-weights quality ceiling
- Synthetic data generation
- Distillation source
Benchmarks
More from Fireworks AI
See all 7 →Frequently asked questions
How much does Llama 3.1 405B (fw) cost?
Llama 3.1 405B (fw) costs $3.000 per million input tokens and $3.000 per million output tokens, for a blended reference rate of $3.000 per million tokens.
What is Llama 3.1 405B (fw)'s context window?
Llama 3.1 405B (fw) supports up to 131,000 tokens of context in a single request.
What is Llama 3.1 405B (fw) best for?
Llama 3.1 405B (fw) is well suited to Top open-weights quality, Permissive license and Strong reasoning.
Who makes Llama 3.1 405B (fw)?
Llama 3.1 405B (fw) is developed and served by Fireworks AI.