HOST DIAGNOSTIC · Meta
Llama 3.1 405B
Llama 3.1 405B · ACTIVE· Llama· CLOSED
ACTIVE
ATTRIBUTE MATRIX · ATRBT GROUP 01
HOST TELEMETRY
AVG
8.9
/20
BEST
16
Cost Efficiency
WEAK
5
Multimodal Fluency
PARAMETERS
Undisclosed
CONTEXT
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PRICING
—
STATUS
ACTIVE
SCORING METHODOLOGY
RECALIBRATED per ADR-NM108 (April 17, 2026). Arena ~1320 maps to 9-11 band. Prior scores 6-8 were under by 2-3 pts. Reasoning 7→10, Code 8→10. Legacy model released July 2024, largest open model of its gen (405B params). Speed 8 (slow due to size). Cost 16 validated (self-hosting value).