# Llama 3.1 405B Instruct

> Four hundred and five billion parameters that anyone could download, which Meta called the first frontier-level open source model and almost nobody had the hardware to serve. Its more consequential job was as a teacher: the licence was rewritten so that its outputs could legally train other models, and a great deal of what it knew now lives inside models small enough to run on one card.

2024-07-23 — 2026-07-07 · lived 1 year, 11 months

## The record

- Provider: Meta
- Model id: `meta.llama3-1-405b-instruct-v1:0`
- Cause of death: Superseded
- Notice given: 2026-01-07
- Context window: 128,000 tokens

## Sources

- https://ai.meta.com/blog/meta-llama-3-1/
- https://web.archive.org/web/20260220023706/https://docs.aws.amazon.com/bedrock/latest/userguide/model-lifecycle.html

## Elsewhere

- [Stand at this grave](https://models.rip/llama-3-1-405b-instruct)
- [The Meta plot](https://models.rip/meta)
- [The whole cemetery](https://models.rip/)