What it does

Krater is a subscription workspace that gathers many AI models in one place. The site says it offers more than 500 models, including ChatGPT, Claude, Gemini and Grok. You can switch models in the middle of a chat or let an Auto Router choose one for you. Beyond chat, the site describes image and video creation (video models named include Kling, Seedance and Sora), speech, sound effects, voice changing and transcription, and deep research connected to the web. You can also describe slides, websites or apps and get an editable result with a live preview. Krater Agent works from a stated goal: it plans the job, does research, browses sites and calls tools, then hands back the completed output. The site lists more than 1,400 app connections, including Gmail, Slack, Notion and GitHub, plus scheduled tasks, memory and projects that keep your context and files ready, and summaries of PDFs, URLs and videos. It states that data is EU-hosted, GDPR compliant and not used for training.

Capabilities

Chat with 500+ models and switch between them mid-conversation, or use an Auto Router
Image and video generation, editing and upscaling
Krater Agent that plans, researches, browses and runs tools toward a goal
1,400+ app connections and scheduled tasks
Slides, documents, websites and apps built from a description with a live preview
Speech, sound effects, voice changing and transcription

When to use it

Using several leading chat models from one subscription instead of separate accounts
Producing images, video and voiceovers alongside written content in one place
Handing recurring work to scheduled agents connected to your apps
Researching across the web and your own PDFs, URLs or videos