Llama 3.1 405B at a glance
Llama 3.1 came in 8B, 70B and 405B sizes with a 128K context and eight languages. Meta said the 405B was competitive with GPT-4o and Claude 3.5 Sonnet and allowed its outputs to train other models.
What changed with Llama 3.1 405B
Meta released Llama 3.1 on July 23, 2024, in 8B, 70B and 405B sizes. All three supported a 128K-token context and eight languages. Meta described the 405B as the first frontier-level open model and said its own evaluations showed it competitive with GPT-4, GPT-4o and Claude 3.5 Sonnet.
Meta also changed the license so developers could use outputs from Llama models, including the 405B, to improve other models, which opened the door to synthetic data generation and distillation. More than 25 partners offered the models on day one.
Llama 3.1 405B in numbers
Values are copied from the linked source on the date shown. They are not IA Compa measurements.
- Context windowas of · Source for Context window: ai.meta.com (opens in a new tab)
- 128K tokens
How it compares
Other models in the same category that we have covered, using each model's latest recorded value. (Models)
Where to compare Llama 3.1 405B
Independent leaderboards and official resources for comparing this model yourself. Rankings change often; each site shows its own current data.
General leaderboards
Why Llama 3.1 405B matters for businesses
For businesses, Llama 3.1 405B showed that near-frontier quality no longer required a closed API. Most companies would still use the 8B or 70B models, or a hosted 405B, but the release gave regulated industries a credible self-hosted path.
Sources for this story
- Official
- Llama-3.1-405B model card (opens in a new tab)Official
Meta on Hugging Face · huggingface.co
- Llama 3.1 405B model page (opens in a new tab)Benchmark
Artificial Analysis · artificialanalysis.ai
Last verified: . IA Compa summarizes public announcements for business readers. We are not affiliated with the companies mentioned. Always confirm details, pricing, and availability with the official source.
- #llm
- #meta
- #llama
- #open-weights
- #frontier-model