Best Free AI Agent tools

Google Antigravity is a free agentic development platform for building, managing, and automating software work with local agents, CLI, and SDK tools.

OpenClaw is an open-source personal AI assistant that can manage email, calendars, chat workflows, and other tasks from messaging apps.

Base44 is an AI app and website builder that turns plain-English ideas into working products without coding.

Higgsfield AI is an AI platform for generating images and videos, plus creative tools for editing, presets, plugins, and workflow automation.

Airtable is a no-code workspace for building AI-powered workflows, apps, and agents around shared business data.

Genspark is an all-in-one AI workspace for generating documents, slides, sheets, images, video, audio, and workflows.

Manus is an AI agent platform that helps users create slides, build websites, develop apps, design assets, and automate research tasks.

Anthropic is an AI company offering Claude models, developer tools, and safety-focused research and products.

Vapi is an API-first platform for building, testing, and deploying advanced voice AI agents at enterprise scale.

Outreach is an agentic AI revenue platform that helps sales teams prospect, manage deals, forecast, coach, and expand accounts.

Dify is an open-source platform for building, deploying, and scaling production-ready AI agents and workflows with RAG, integrations, and observability.

Vast.ai is an API-native GPU cloud for renting on-demand compute with real-time pricing and per-second billing.

Xiaomi MiMo is Xiaomi's AI model platform offering web demos, API access, blog updates, and hiring information.

Modal is a high-performance AI infrastructure platform for running inference, training, batch jobs, and sandboxes with instant autoscaling.

ElevenLabs is an AI audio platform for text-to-speech, voice cloning, dubbing, speech-to-text, music, and voice agents.