Conversational AI with millions of user-created characters. Largest LLM chat audience after ChatGPT.
The world's most popular AI chatbot — powered by GPT-4o ChatGPT by OpenAI. Used by 200M+ people weekly for writing, coding, research, image generation, and more.
Constitutional AI assistant by Anthropic — safe, helpful, honest Claude is Anthropic's family of AI assistants, designed with a focus on safety and helpfulness. Available via API and Claude.ai.
Enterprise LLM platform with Command R+ models, strong retrieval/RAG primitives.
Open-weights Chinese frontier LLM that shocked the industry with frontier-class reasoning at a fraction of the cost.
Google's most capable multimodal AI — text, code, images, audio, video Gemini is Google's flagship AI model family, featuring Gemini Ultra, Pro, and Flash. Available via Google AI Studio and Vertex AI.
xAI conversational model integrated into X. Long context, real-time web access, less filtered than other frontier LLMs.
World's fastest AI inference — LPU chips delivering 500+ tokens/sec Groq offers ultra-fast inference for open-source LLMs (Llama 3, Mixtral, Gemma) using proprietary LPU hardware.
Meta's open-source LLM family. Llama 4 is the de-facto baseline for self-hosted AI in 2026.
European frontier AI — open weights, fast, efficient models Mistral AI builds frontier open-weight LLMs. Mistral Large competes with GPT-4; Mistral 7B is the most downloaded open-source model.
AI-powered search engine with real-time web access Perplexity AI is an answer engine that uses LLMs + live web search to give cited, up-to-date answers.