525 articles
Poro / Viking (model family)
Poro and Viking are related open-source multilingual large language model families trained on Finland's LUMI supercomputer by SiloGen, TurkuNLP, and HPLT, released in 2024 under Apache 2.0.
ProtGPT2
ProtGPT2 is a GPT-2-style language model that generates novel protein sequences, trained on 50 million UniRef50 sequences and released in 2022 by Noelia Ferruz and colleagues at the University of Bayreuth.
Puffin-World
Puffin-World is a unified multimodal world model released as a 2026 academic preprint, representing 3D scenes through explicit gravity, depth, and appearance states rather than RGB frames alone.
Pythia (model family)
Pythia is a suite of 16 open-source language models released by EleutherAI in 2023, ranging from 70M to 12B parameters, with 154 training checkpoints per model for studying how models learn.
Quantized community variants
A quantized community variant is an open-weight AI model converted, fine-tuned, or repackaged by a third party and published on a model hub such as Hugging Face.
Qwen (model family)
Qwen is a family of large language and multimodal models published by Alibaba Group's Qwen Team, first released in 2023 and distributed with open weights.
Qwen (通义千问)
Qwen (通义千问), also known as Tongyi Qianwen, is a family of large language models from Alibaba Cloud, first unveiled in 2023 and spanning dense, multimodal, and open-weight releases.
Qwen derivative ecosystem
The Qwen derivative ecosystem is the population of fine-tuned, quantized, merged, and distilled models built on Alibaba's open Qwen weights, the largest such base in the open-model world by 2026.
Qwen licensing shift
The Qwen licensing shift is Alibaba's move of its Qwen AI models from a restrictive custom license to Apache 2.0, beginning in 2024 and partially reversed in 2026.
Qwen-AgentWorld
Qwen-AgentWorld is a pair of open-weight language world models announced by Alibaba's Qwen team in June 2026, which predict how agentic environments respond to an agent's actions across seven domains.
Qwen-Audio
Qwen-Audio is an open-weight audio-language model line from Alibaba Cloud's Qwen series, first released in November 2023, trained on more than 30 tasks covering speech, sound, music, and song.
Qwen-Coder
Qwen-Coder is Alibaba's family of open-weight code-specialized language models, spanning CodeQwen1.5, Qwen2.5-Coder (2024), and the agentic Qwen3-Coder line launched in 2025 under the Apache 2.0 license.
Qwen-Image
Qwen-Image is a family of image generation and editing models from Alibaba's Qwen team, first released in August 2025, known for complex text rendering, especially Chinese, and precise image editing.
Qwen-Music
Qwen-Music is a music generation model family from Alibaba, introduced in July 2026, that generates complete songs from text prompts or by re-rendering reference audio in a new style.
Qwen-VL
Qwen-VL is a family of open-weight vision-language models developed by Alibaba's Qwen Team within the Tongyi Qianwen series, first released in August 2023 and spanning four generations through Qwen3-VL.
Qwen3
Qwen3 is a family of open-weight large language models released by Alibaba's Qwen team in April 2025, spanning eight checkpoints from 0.6B to a 235B-parameter flagship under Apache 2.0.
Qwen3-Coder
Qwen3-Coder is a family of open-weight, code-specialized large language models developed by Alibaba's Qwen team, released on July 23, 2025 and licensed under Apache 2.0.
Qwen3-TTS
Qwen3-TTS is a text-to-speech model family from Alibaba's Qwen team, released as a commercial API in September 2025 and as Apache 2.0 open-weight models in January 2026, trained on over 5 million hours of speech.
Qwen3.8-Max
Qwen3.8-Max is a large language model released by Alibaba on August 3, 2026, billed as the most powerful model in its Qwen series to date.
QwQ-32B
QwQ-32B is a 32-billion-parameter open-weight reasoning model released by Alibaba's Qwen team on March 6, 2025, trained with reinforcement learning to match DeepSeek-R1's math and coding performance at a fraction of the size.
RDT-1B
RDT-1B is a 1B-parameter diffusion transformer for bimanual robot manipulation, released in October 2024 by Tsinghua University's TSAIL group and described as the largest such model at the time.
Reasoning model
A reasoning model, also called a reasoning language model, is a large language model that uses extra test-time compute to reason through a problem in explicit multi-step steps before answering.
Recraft
Recraft is a family of proprietary text-to-image models for professional design work, best known for its V3 model, which topped the Artificial Analysis leaderboard in October 2024.
Replit Agent
Replit Agent is a cloud-hosted autonomous coding agent from Replit that builds, tests, and deploys complete applications from a natural-language description, with no coding knowledge required.
RETRO (DeepMind model)
RETRO, short for Retrieval-Enhanced Transformer, is a language model developed by DeepMind, introduced in 2021, that conditions predictions on text retrieved from a corpus of up to 2 trillion tokens.
Reve Image
Reve Image is a proprietary text-to-image model family from startup Reve AI in Palo Alto, California, first released in March 2025 and noted for prompt adherence and typography.
RFdiffusion
RFdiffusion is an open-source generative model for de novo protein design, described in Nature in 2023 by David Baker's lab at the University of Washington.
Riffusion
Riffusion is an open-source AI music-generation model family created by Seth Forsgren and Hayk Martiros in December 2022, fine-tuning Stable Diffusion to generate spectrogram images converted into audio.
RoBERTa
RoBERTa is a transformer encoder from Facebook AI, released in 2019, that keeps BERT's architecture but pretrains it with more data and no next-sentence prediction.
RoboBrain
RoboBrain is a family of open-source embodied AI models developed by the Beijing Academy of Artificial Intelligence, released from February 2025, that lets robots plan long-horizon manipulation tasks.