525 articles
GPT-4
GPT-4 is a large multimodal language model released by OpenAI in March 2023, scoring 86.4% on MMLU and passing a simulated bar exam in the top 10%.
GPT-4.1
GPT-4.1 is a family of three OpenAI large language models launched in the API on April 14, 2025, focused on coding, instruction following, and long-context comprehension.
GPT-4.5
GPT-4.5 was a large language model released by OpenAI as a research preview in February 2025, its last non-reasoning chat model, retired from the API in July 2025.
GPT-4Chan
GPT-4chan, or Generative Pre-trained Transformer 4Chan, was an open-weight language model created by Yannic Kilcher in 2022, fine-tuned on years of 4chan /pol/ posts and blocked by Hugging Face after its bots wrote over 30,000 posts.
GPT-4o
GPT-4o is OpenAI's flagship multimodal large language model, announced May 13, 2024, handling text, audio, image, and video in one neural network and powering ChatGPT's native voice mode.
GPT-4V(ision)
GPT-4V(ision) is the vision-enabled version of OpenAI's GPT-4, allowing the model to accept images alongside text; it reached ChatGPT users in September 2023 and the API that November.
GPT-5
GPT-5 is a large language model system OpenAI released on August 7, 2025, unifying a fast model, a deeper reasoning model, and a router that picks between them.
GPT-5.1
GPT-5.1 is a family of OpenAI large language models released via ChatGPT and the API on November 13, 2025, shipping Instant and Thinking variants built around adaptive reasoning.
GPT-5.2
GPT-5.2 is a family of proprietary large language models released by OpenAI on December 11, 2025, the fourth release in the GPT-5 family, serving Instant, Thinking, Pro, and Codex variants.
GPT-5.3-Codex
GPT-5.3-Codex is an agentic coding model released by OpenAI on February 5, 2026, combining the coding performance of GPT-5.2-Codex with the reasoning of GPT-5.2, and rated High capability for cybersecurity tasks.
GPT-5.4
GPT-5.4 is a large language model released by OpenAI on March 5, 2026, in standard, Thinking, and Pro versions, positioned as the company's flagship for complex professional work.
GPT-5.5
GPT-5.5, also known as OpenAI GPT-5.5, is a large language model released by OpenAI on April 23, 2026, positioned for agentic coding, tool use, and multi-step reasoning work.
GPT-5.6
GPT-5.6, also known as OpenAI GPT-5.6, is a family of large language models released by OpenAI in July 2026, offered in three tiers named Sol, Terra, and Luna.
GPT-J and GPT-NeoX
GPT-J and GPT-NeoX are open-weight language models released by the volunteer collective EleutherAI as community replications of GPT-3, with GPT-NeoX-20B's weights downloadable in February 2022.
gpt-oss
gpt-oss is a pair of open-weight reasoning language models, gpt-oss-120b and gpt-oss-20b, released by OpenAI on August 5, 2025 under Apache 2.0, its first open weights since GPT-2 in 2019.
GPT-SoVITS
GPT-SoVITS is an open-source voice-cloning and text-to-speech toolkit released on GitHub in 2024 under the MIT license, cloning a voice from 5 seconds of audio.
GPT4All
GPT4All is a free, open-source desktop application built by Nomic AI that runs quantized open-weight language models locally on Windows, macOS, and Linux without an internet connection.
GR (ByteDance robotics VLA family)
GR is a family of vision-language-action models for robot manipulation developed by ByteDance Seed, built on internet video pretraining and released as GR-1, GR-2, and GR-3 between 2023 and July 2025.
GraphCast
GraphCast is a machine-learning weather forecasting system developed by Google DeepMind, announced in Science in 2023, that predicts global weather up to 10 days ahead more accurately than the leading physics-based model.
Grok (chatbot)
Grok, also known as TruthGPT, is an AI chatbot and large language model family developed by xAI, Elon Musk's startup, launched in November 2023 and distributed through X.
Grok (model family)
Grok is a family of large language models developed by xAI, first released in November 2023, known for native access to live X posts after xAI acquired X in 2025.
Grok 3
Grok 3 is a family of large language models from xAI, Elon Musk's AI company, released in beta in 2025 with DeepSearch and reasoning modes, and retired from the API in 2026.
Grok 4
Grok 4 is a frontier reasoning model released by xAI on July 9, 2025, trained on the Colossus supercomputer and offered in a standard and Heavy variant.
Grounded Language-Image Pre-training (GLIP)
Grounded Language-Image Pre-training (GLIP) is a vision-language model from Microsoft Research, introduced in December 2021, that unifies object detection and phrase grounding in one task.
GWM-1
GWM-1 is a family of generative world models announced by Runway on December 11, 2025, generating video frame by frame in real time with interactive control.
Hailuo (海螺)
Hailuo (海螺) is a family of video generation models by Shanghai AI company MiniMax, first released in September 2024 and known for physics realism and low pricing.
HappyHorse-1.0
HappyHorse-1.0 is a text-to-video and image-to-video AI model that took #1 on the Artificial Analysis Video Arena in April 2026 before being attributed to Alibaba's Future Life Lab.
Hardware-vendor open model strategy
Hardware-vendor open model strategy is the practice, prominent by 2026, of chipmakers such as AMD and NVIDIA publishing open-weight AI models to sell hardware rather than monetize the models.
Helix (AI model)
Helix is a vision-language-action model developed by Figure AI and announced in February 2025 to control its humanoid robots end-to-end from camera pixels and natural-language commands.
HiDream
HiDream is a family of open-weight image generation and editing models from Beijing-based HiDream.ai, starting with the 17-billion-parameter text-to-image model HiDream-I1 in April 2025 and continuing with the unified 8-billion-parameter HiDream-O1-Image line in 2026.