Llama 3.1 405B Instruct (BF16) by Meta

Llama 3.1 405B Instruct (BF16) by Meta is listed on Arena.ai’s Text Arena. As of 12 November 2026 it holds #246 of 421 models.

Where it stands

Platform: Arena.ai — Text Arena. Position: #246.

• Arena score: 1336±4
• Votes: 41 375
• Price per 1M tokens (input/output): $4 / $4
• Context: 32.8K

What it is

• Developer: Meta
• Licence: Llama 3.1 Community
• Arena: Text Arena
• Model page: primary source

How to read the figures

The Arena score comes from pairwise chat comparisons, not a guarantee for your own task. Rankings, prices and context windows change; check the primary source before deciding.

Sources

1. Arena.ai, Text Arena leaderboard, 12 November 2026 — leaderboard
2. Model primary source — link

Prepared by the Listing AI desk from Arena.ai’s public leaderboard. It describes ranking data; it is not an independent review or test.