| What it does | AI prompt workspace for generating, optimizing, and organizing prompts across AI models
| All-in-one AI workspace with 500+ models, one subscription
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| Stage | Startup
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| Founded | 2025
| 2022
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| Based in | Not given
| DK
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| Pricing model | Freemium
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| Pricing | Free plan with 5 prompt usages per month; Pro at $10/month with 1,500 usages; Pro+ at $15/month with 3,000 usages; Max at $20/month with 5,000 usages. All paid plans include access to all features, prompt templates/library, public API & MCP access, and priority support.
| Pro: $20/month (1,500 credits/month), Ultra: $49/month (4,000 credits/month), Max: $119/month (10,000 credits/month). Enterprise: custom pricing. Yearly billing available with discounts.
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| Key features | - Prompt Generator - Create professional AI prompts for any goal, format, or workflow
- Prompt Analysis - Understand what works and how to make prompts more effective
- Prompt Optimizer - Turn rough prompts into high-performing versions tailored for better results
- Prompt Refinement - Refine existing prompts with feedback and iterative improvements
- Reverse Prompt - Reverse-engineer images, videos, URLs, or text into reusable prompts
- Prompt Library - Save, organize, and reuse prompts across projects and workflows
- Prompt History - Track every prompt version across generations and optimizations
- Multi-Language Support - Works with prompts in multiple languages
- Model-Aware Recommendations - Get tailored structures for ChatGPT, Claude, Gemini, image and video models
- REST API and MCP Integrations - Integrate prompt generation into applications and AI clients
| - AI Chat with ChatGPT, Claude, Gemini and 500+ models
- Image Generation with Flux, DALL-E, Stable Diffusion
- Video Generation with Sora, Kling, LTX
- Music & Audio Generation
- 1,400+ app connections
- Text-to-Speech & Speech-to-Text
- AI Agent for task automation
- Document Analysis and Web Search Integration
- Code generation and execution
- AI Model Compare Arena
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| What makes it different | - Works across text, image, and video AI models in one unified workspace
- Reverse-engineer existing content into prompts you can reuse and adapt
- Get better AI results without paying for more expensive models
- Convert rough requests into production-ready reusable prompt templates with variables
- Track complete version history of all prompt iterations and refinements
| - 500+ models in one workspace eliminates need for multiple subscriptions
- Krater Agent automates complete workflows across web and connected apps
- Privacy-first design with no training on user data
- 1,400+ app integrations allow automation within existing tools
- Available in 11 languages for global reach
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 39 ● no change since last check | 37 ● no change since last check |
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| Trust Flow (Majestic) | 12 | 9 |
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| Citation Flow (Majestic) | 33 | 39 |
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| Referring domains (Majestic) | 380 | 662 |
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PrompTessor
Krater