When was LLaMA 1 released?

LLaMA 1 was released by Meta on Friday, Feb 24 2023.

LLaMA 1 was built by Meta. Develops the open-weight Llama series of models. Committed to open-source AI research.

Is LLaMA 1 open source?

Partly. LLaMA 1 is an open-weight model: the trained weights are free to download and run locally or on your own infrastructure, but the training data and code are not fully released and the license may restrict some commercial uses. It is not open source in the strict sense.

What came before and after LLaMA 1?

It was followed by LLaMA 2 on Jul 18 2023.

LLaMA 1Open Weight

Released Feb 24 2023

LLaMA 1 is an AI model released by Meta on Friday, Feb 24 2023. It is an open-weight model — the trained weights are available to download and run.

Compare LLaMA 1 with

LLaMA 1

Suggested comparisons

LLaMA 1vsMuse Spark 1.3 LLaMA 1vsGPT-6 Astra LLaMA 1vsClaude Fable 5.1 LLaMA 1vsGemini 3.8 Flash LLaMA 1vsGrok 4.6 LLaMA 1vsDeepSeek-V4.1-Flash LLaMA 1vsMistral Medium 3.5 LLaMA 1vsKimi K3 LLaMA 1vsGLM-5.3-Flash LLaMA 1vsQwen3.8-Max-0902 LLaMA 1vsNemotron 3.5 Lightning

Frequently asked questions

: LLaMA 1 was released by Meta on Friday, Feb 24 2023.
: LLaMA 1 was built by Meta. Develops the open-weight Llama series of models. Committed to open-source AI research.
: Partly. LLaMA 1 is an open-weight model: the trained weights are free to download and run locally or on your own infrastructure, but the training data and code are not fully released and the license may restrict some commercial uses. It is not open source in the strict sense.
: It was followed by LLaMA 2 on Jul 18 2023.