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Browse subtopics: Large Language Models

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Atlas (language model)

Atlas is a retrieval-augmented language model developed by researchers at Meta AI (the group then known as Facebook AI Research, or FAIR).

Information Retrieval Large Language Models

Byte Latent Transformer

The Byte Latent Transformer (BLT) is a tokenizer-free large language model architecture introduced by researchers at Meta AI's Fundamental AI Research (FAIR) group in December 2024.

Large Language Models Model Architecture

Code Llama

Code Llama is a family of open-weight large language models specialized for code generation and understanding, released by Meta AI on August 24, 2023.

AI Code Generation Large Language Models

Galactica (language model)

Galactica is a large language model for science, built by the Papers with Code team at Meta AI and released on 15 November 2022.

AI for Science Large Language Models

LLM Compiler (Meta)

The Meta Large Language Model Compiler, usually shortened to LLM Compiler, is a family of pre-trained large language model models built by Meta AI for code and compiler optimization tasks.

AI Code Generation Large Language Models

LLaMA

LLaMA is the original name of a family of large language models developed by Meta AI.

Large Language Models Natural Language Processing

LLaMA/Model Card

The Llama model card is the official documentation that Meta AI ships with each release of the Llama family of large language models.

AI Models Developer Tools

Llama 2 is a family of open-weight large language models developed by Meta AI. Meta released pretrained and dialogue-tuned checkpoints with 7 billion, 13 billion, and 70 billion parameters on July 18, 2023.

Large Language Models Machine Learning

Llama 3

Llama 3 is a family of open-weight large language models developed by Meta. Meta released the original Llama 3 checkpoints on April 18, 2024, in 8-billion-parameter and 70-billion-parameter sizes.

AI Models Large Language Models

Llama 3.1

Llama 3.1 is a family of open-weight large language models released by Meta on July 23, 2024, in three sizes, 8 billion, 70 billion, and 405 billion parameters, each shipped in both a pre-trained base form and…

AI Models Large Language Models

Llama 3.2

Llama 3.2 is a family of four open-weight large language models released by Meta on September 25, 2024, comprising lightweight 1 billion and 3 billion parameter text-only models for on-device AI and the 11…

AI Models Large Language Models

Llama 3.2 Vision

Llama 3.2 Vision is the set of multimodal (image-plus-text) models in Meta's Llama 3.2 family, released on September 25, 2024 at the Meta Connect 2024 developer conference.

Large Language Models Multimodal AI

Llama 3.3

Llama 3.3 is an instruction-tuned, text-only large language model with 70 billion parameters that Meta released on December 6, 2024

AI Models Large Language Models

Llama 4

Llama 4 (Large Language Model Meta AI 4) is a family of natively multimodal large language models developed by Meta and released on April 5, 2025, the first generation of the Llama series to use a mixture of…

Large Language Models

Llama 4 Behemoth

Llama 4 Behemoth is the announced but never publicly released flagship model in the Llama 4 family from Meta AI.

AI Models Large Language Models

Llama 4 Scout and Maverick

Llama 4 Scout and Llama 4 Maverick are open-weight, natively multimodal AI large language models developed by Meta and released on April 5, 2025.

AI Models Large Language Models

Muse Glimmer

Muse Glimmer is an open-weight text-and-image model developed by Meta AI for local agent and coding workloads. Meta released the model on August 10, 2026 under the identifier meta-models/Muse-Glimmer-30B.

AI Agents AI Models

OPT (Open Pre-trained Transformer)

OPT (Open Pre-trained Transformer) is a suite of decoder-only large language models released by Meta AI in May 2022, ranging from 125 million to 175 billion parameters and built to reproduce the scale and…

Large Language Models Open Source AI

SpiRit-LM

SpiRit-LM (also written Spirit LM) is a large language model from Meta AI's Fundamental AI Research (FAIR) group that handles spoken and written language inside a single model.

Large Language Models Speech & Audio AI

Toolformer

Toolformer is a research language model from Meta AI that learns, in a self-supervised way, to call external software tools through simple text-based API calls.

AI Agents Large Language Models