Models
Every model tracked in AI Universe — search, filter by open/closed weight, and sort by release date.
xAI
Grok (4.5)
xAI's model family, notable for tight integration with X (formerly Twitter) and one of the largest disclosed training clusters in the industry.
Anthropic
Claude (Sonnet 5)
Anthropic's model family, built with a heavy emphasis on Constitutional AI — currently the Sonnet 5, Opus 4.8, Fable 5, and Haiku 4.5 lineup.
DeepSeek
DeepSeek (V4)
The Chinese open-weight model family that shook up the industry by matching closed frontier models at a fraction of the reported training cost.
OpenAI
GPT (GPT-5.5)
OpenAI's flagship model family — the engine behind ChatGPT's default experience.
Meta Superintelligence Labs
Muse Spark
Meta's first proprietary, closed-weight flagship model — a striking departure from the open-weight Llama line.
Mistral AI
Mistral (Medium 3.5)
The French AI lab's model lineup — closed-weight flagships alongside some of the most-used open models in the industry.
Google DeepMind
Gemini (3.1 Pro)
Google DeepMind's natively multimodal model family, notable for very long context windows and strong reasoning benchmarks.
Alibaba
Qwen (3.5)
Alibaba's open-weight model family, shipped in an unusually wide range of sizes from mobile-friendly to frontier-scale.
Meta
Llama (4 Scout / Maverick)
Meta's open-weight model family — widely used as the base for countless fine-tuned and self-hosted AI products.