L

Llama 3.1 405B

Open weights
Open LLM Meta Docs ↗
Model spec
Provider
Meta
Context window
128K ctx
Max output
-
Input price
-
Output price
-
License
Llama 3.1 Community License
Open weights
Yes

Llama 3.1 405B is Meta’s current flagship open-weight language model, offering text processing capabilities comparable to leading proprietary models. With its 128,000-token context window, it can handle longer documents and conversations than many alternatives while maintaining performance across various benchmarks.

The model fits between fully proprietary systems and smaller open models, offering a middle ground for developers who need advanced capabilities without vendor lock-in. It’s particularly notable as one of the largest open-weight models available under the Llama 3.1 Community License.

Developers building text-based applications who value model transparency and adaptability should consider Llama 3.1 405B. Organizations needing predictable pricing or multimodal capabilities should evaluate whether its specifications meet their requirements, as some operational details remain unspecified.

Modality

Text

Use cases

Text generation for long-form content like articles or reportsSummarization of lengthy documents or conversationsQuestion answering with broad contextual understandingCode generation and explanationGeneral-purpose text-based AI applications

Pros & cons

Pros

  • Open-weights model under the Llama 3.1 Community License
  • Large context window enables processing of extensive inputs
  • Competitive performance with proprietary models on many tasks

Cons

  • No specified pricing structure for input/output usage
  • Lack of multimodal capabilities (text-only)
  • Maximum output length not defined

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Read the official docs

Llama 3.1 405B

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