
Provides powerful reasoning agents and deep research, but lacks Manus's specialized continuous cloud workspace execution.
Provides powerful reasoning agents and deep research, but lacks Manus's specialized continuous cloud workspace execution.
BuildingAI (FastbuildAI) records 0 monthly visits with -100% month-over-month growth and Free pricing. Manus records 19,195,779 monthly visits with -1.7% growth and Free Trial pricing.
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | fastbuildai.com | manus.im |
| Pricing Model | Free | Free Trial |
| Monthly Visits | 0 (0) | 19.2M (19,195,779) |
| MoM Traffic Delta | -43 (-100%) | -339.79K (-1.7%) |
| Primary Market & Share | 🇯🇵 Japan (100%) | 🇧🇷 Brazil (18.3%) |
| Direct Visits / mo | 0 | 10.56M |
| User Rating | 4.6 | 4.6 |
| Supported Platforms | Website | Website |

Open-source, block-based platform for building and monetizing your own private AI app suite
Core AI capabilities are decomposed into modules with a plugin layer for custom functionality, so you compose systems by assembling components such as knowledge base, agent or workflow rather than coding from zero.
Build agents on a drag-and-drop canvas, attach knowledge bases, import/export agents via DSL, and interoperate with Coze, Dify and MCP-based tools.
Create structured, extensible knowledge stores, import multiple document formats, and share editing/management rights with collaborators through role-based permissions.
Connect mainstream global large language models and AIGC image models, or run fully local inference through Ollama, with unified key management.
A general-purpose AI agent that executes tasks, not just answers them
Give the agent a goal and it plans the steps, chooses tools, and works through the task in a cloud environment without constant supervision.
Produces finished artifacts such as slide decks, functional websites, small games, and formatted documents rather than raw text.
Runs broad, multi-source investigations and compiles the findings into a structured report.
Generates images, video, and music as part of a larger task or as standalone outputs.

Provides powerful reasoning agents and deep research, but lacks Manus's specialized continuous cloud workspace execution.
Provides powerful reasoning agents and deep research, but lacks Manus's specialized continuous cloud workspace execution.
Features advanced computer use and interactive artifacts, but operates primarily as a chat assistant rather than a dedicated autonomous agent platform.
Features advanced computer use and interactive artifacts, but operates primarily as a chat assistant rather than a dedicated autonomous agent platform.
Autonomous enterprise AI agents and CRM intelligence powered by Salesforce Data 360 and Atlas.
Autonomous enterprise AI agents and CRM intelligence powered by Salesforce Data 360 and Atlas.

Executes tasks using cloud virtual Linux machines, but focuses more on personal desktop automation than complex multi-app research.

Build working apps, websites, and AI agents by describing them
Build working apps, websites, and AI agents by describing them
Free / Open-sourceRun and build with open AI models locally or in the cloud
Free / Open-sourceRun and build with open AI models locally or in the cloud
Free / Open-sourceOpen-source workflow automation built for AI agents and technical teams
Free / Open-sourceOpen-source workflow automation built for AI agents and technical teams
Free / Open-sourceProvides open-source personal task automation, but lacks the polished cloud sandbox environment of Manus.
Free / Open-sourceProvides open-source personal task automation, but lacks the polished cloud sandbox environment of Manus.
No-code builder for custom AI agents and workflows
No-code builder for custom AI agents and workflows

Automates multi-step workflows and asset creation, but with fewer built-in general browser navigation tools.
SpecialistConverts prompts into structured office deliverables, but acts primarily as a document generation workspace.
SpecialistConverts prompts into structured office deliverables, but acts primarily as a document generation workspace.

Free / Open-sourceBuild, deploy, and govern production-ready agentic AI workflows
Free / Open-sourceBuild, deploy, and govern production-ready agentic AI workflows