OpenAI is the leading AI research lab behind GPT-4o and ChatGPT. Best for general-purpose AI tasks and rapid prototyping.
Anthropic is the creator of the Claude model family and Claude Code. Excellent for coding, analysis, and complex reasoning tasks.
Google's multimodal AI platform with native agent and tool-use capabilities. Integrates with Google Workspace.
AI-powered research and answer engine. Combines web search with LLM reasoning for deep-dive research.
Hume AI builds empathetic AI that understands emotional nuance in voice and facial expressions. Their EVI (Empathic Voice Interface) API lets developers build emotionally-aware voice agents. Used for mental health, customer servic
Rasa is the leading open-source conversational AI framework. It provides NLU (Natural Language Understanding) and dialogue management tools for building text and voice assistants. Self-hostable, privacy-focused, with a large devel
Voiceflow is a collaborative platform for designing, prototyping and building AI agents and chatbots. Offers a visual drag-and-drop interface for conversation design, with integrations for LLMs, API calls, and deployment to multip
AgentGPT is a browser-based autonomous AI agent platform that lets users create and deploy custom AI agents for web browsing, research, code generation, and task automation without any coding.
TypingMind is a powerful AI chat interface supporting multiple AI models including GPT-4, Claude, and Gemini. Features custom prompts, chat organization, plugin system, and API key management.
Poe is a multi-model AI chat platform by Quora that integrates GPT-4, Claude, Gemini, and many custom bots in one interface. Create your own bots, upload files, search the web, and switch between leading AI models seamlessly.
Based on hedirbase's curated directory, the most notable AI agent platforms in 2026 include OpenAI, Anthropic Claude, Google Gemini, Perplexity, Hume AI, Rasa, Voiceflow, AgentGPT, TypingMind, Poe. The right choice depends on whether you want an end-to-end hosted platform or a framework you deploy yourself.
Agent platforms are hosted services that manage models, memory, tools and deployment for you, while agent frameworks (such as LangChain, CrewAI and AutoGen) are code libraries you use to build custom agents. hedirbase lists both in separate categories.
hedirbase verifies the links of listed platforms on a regular basis and records a last-verified date on every entry page. This ranking reflects the current directory data; new platforms can be suggested through the Submit page at any time.