# Llama 2 70B Chat

> Meta put the weights and a commercial licence out on the same day, and a seventy-billion-parameter chat model that people quantised until it ran on a laptop stopped being a research artefact. Four thousand tokens of context was all it ever had. Amazon switched off its hosted copy in October 2024; the file it was serving is on a great many hard drives still.

2023-07-18 — 2024-10-30 · lived 1 year, 3 months

## Last words

Its safety tuning was tight enough that it declined ordinary requests, and the refusals became a genre of screenshot.

## The record

- Provider: Meta
- Model id: `meta.llama2-70b-chat-v1`
- Cause of death: Superseded
- Notice given: 2024-05-12
- Context window: 4,096 tokens

## Sources

- https://ai.meta.com/blog/llama-2/
- https://arxiv.org/abs/2307.09288
- https://huggingface.co/meta-llama/Llama-2-70b-chat-hf
- 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-2-70b-chat)
- [The Meta plot](https://models.rip/meta)
- [The whole cemetery](https://models.rip/)