Llama 3.1 405B Instruct
The highly anticipated 400B class of Llama3 is here! Clocking in at 128k context with impressive eval scores, the Meta AI team continues to push the frontier of open-source LLMs.
Input
Output
Context
10K
Max Output
2K
Parameters
405B
Technical Specifications
Model TypeChat
Context Window10K
Max Output Tokens2K
Parameters405B
Training Cutoff—
Licensellama3.1
Capabilities
Input Modalities
text
Output Modalities
text
Features
function_callingjson_modereasoningstreamingtext_generation
Resources & Links
Estimated GPU Requirements for Llama 3.1 405B Instruct
Estimates based on INT8 quantization. Actual requirements vary by framework and configuration.
Related Tools
Data sourced from official provider APIs and documentation
Last updated: May 5, 2026
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