Krater.ai is a Manus alternative that puts 350+ AI models directly in your hands: chat, image, video, voice, and code in one workspace with flat pricing.
The best Manus alternative is Krater.ai, which gives you direct access to 350+ AI models for chat, image, video, voice, and code in one workspace with one credit pool. Manus is an autonomous agent that executes tasks for you but does not let you pick models or work interactively across modalities. Krater.ai starts at $20 per month for 1,500 credits with flat, predictable pricing.

Manus (manus.im, now part of Meta) is an autonomous AI agent: you describe a goal, and it plans and executes the steps on its own. It can build websites, create slide decks, design assets, run wide research across many sources, and even operate a browser to complete tasks. It also offers AI image generation, AI music, and integrations such as Slack and mail.
Here is what Manus is built for:
Manus is impressive at hands-off execution, but the agent-first design has real trade-offs for everyday AI work:
Krater.ai takes the opposite approach: instead of one agent that hides the models, it puts 350+ models directly in your hands inside one continuous workspace.
In short: choose Manus if you mainly want to hand off entire tasks and wait for results. Choose Krater.ai if you work with AI interactively across chat, images, video, voice, and code, and want to pick the right model for each job.
Yes. Krater.ai covers the same day-to-day outcomes (research, documents, slides, images, code) while adding direct access to 350+ models, frontier video and voice generation, and flat-rate pricing from $20 per month.
Yes. The Krater Layer executes multi-step tool workflows (web search, document creation, code execution) inside your conversation, keeping you in control between steps instead of running fully unattended.
Yes. You can pick any of the 350+ models per message, or let the auto-router choose the best model for the task. Manus does not expose a model picker.
Krater.ai Pro is $20 per month for 1,500 credits in one pool across chat, image, video, voice, and code. Manus sells credit packages, and long autonomous runs can consume credits unpredictably.