Agent Index
32 agents tracked across 25 companies.
Anthropic
Character Technologies
Cognition AI
Google DeepMind
Microsoft
Microsoft / GitHub
Microsoft / OpenAI
OpenAI
GPT-43
OpenAI's flagship model, used via ChatGPT, API, and plugins.
OpenAI
OpenAI's omni model with vision, audio, and agentic capabilities.
o1
OpenAI's reasoning model optimized for complex multi-step tasks.
o3
OpenAI's next-generation reasoning model with extended thinking.
OpenAI Assistants API1
OpenAI's hosted agent runtime with code interpreter, retrieval, and function calling.
OpenAI API (custom)1
Custom agents built directly on the OpenAI API without a named product wrapper.
Paul Gauthier
Perplexity AI
Significant Gravitas