# Llama 3.1 405B Instruct: Catalogue listing

Llama 3.1 405B Instruct: Catalogue listing. First seen 17 Sep 2026. The context window is 131,072 tokens. Pricing is $0.00 per million input tokens and $0.00 per million output tokens. 4 evidence links.

- Kind: Launch
- Developer: Meta
- Confidence: Confirmed
- First seen: 2026-09-17T09:37:09.328Z
- Model: [Llama 3.1 405B Instruct](https://alexgetman.com/models/meta/llama-3-1-405b-instruct-1132/)
- Canonical: https://alexgetman.com/signals/2026/09/17/llama-3-1-405b-instruct/

## Evidence links

- [models.dev · catalogue](https://models.dev/#llama-3.1-405b-instruct)
- [Artificial Analysis · benchmarks](https://artificialanalysis.ai/models)
- [AWS Bedrock · lifecycle](https://docs.aws.amazon.com/en_en/bedrock/latest/userguide/model-lifecycle-legacy.html)
- [Primary source (reviewed)](https://huggingface.co/meta-llama/Llama-3.1-405B-Instruct)