# Krater AI Platform
> https://krater.ai — The AI SuperApp

## Overview

An all-in-one AI platform is a single subscription that gives access to multiple AI models from different providers in one interface. Krater.ai is an all-in-one AI platform providing access to 350+ AI models through a unified chat interface. Instead of managing multiple AI subscriptions (ChatGPT, Midjourney, ElevenLabs, etc.), users get everything in one place with transparent, credit-based pricing.

## Core Capabilities

### AI Chat Models
Access to leading language models including:
- **OpenAI**: GPT-5.4, o3, GPT-4o, GPT-4o-mini
- **Anthropic**: Claude Sonnet 5, Claude Opus 4.6, Claude 4.5 Sonnet
- **Google**: Gemini 2.5 Pro, Gemini 2.5 Flash
- **Meta**: Llama 4 Maverick, Llama 4 Scout
- **DeepSeek**: DeepSeek V3, DeepSeek Reasoner
- **Mistral**: Mistral Large, Codestral
- **And 340+ more models**

### Image Generation
Create images from text with multiple models:
- **Flux 2**: Photorealistic images, general use (6 credits)
- **Nano Banana**: Google's fast, efficient model (4 credits)
- **Recraft V3**: Best for text in images, logos, graphics (5 credits)
- **Ideogram V2**: Typography and text-heavy designs (10 credits)
- **Seedream 4.5**: ByteDance's versatile model (5 credits)

Supported sizes: 1:1, 16:9, 9:16, 4:3, and more aspect ratios.

### Video Generation
Generate videos from text or images:
- **LTX-2**: 6-10 seconds, fast and efficient (~50-85 credits)
- **Seedance 1.5**: 4-12 seconds, pro quality with native audio (~42-250 credits)
- **Kling 3.0**: 5-10 seconds, cinematic with native audio (~70-280 credits)
- **Veo 3.1**: High-fidelity, Google's premium video model
- **Sora 2**: 4-12 seconds, OpenAI's premium model (~85-250 credits)

Audio generation available on Seedance 1.5 and Kling 3.0 (2x cost when enabled).
Aspect ratios: 16:9, 9:16, 1:1, 4:3, 21:9 (cinematic).

### Audio & Music
- **Text-to-Speech**: 20+ ElevenLabs premium voices (5 credits)
- **Sound Effects**: Custom SFX 1-22 seconds (3 credits)
- **Music Generation**: Full songs with AI or custom lyrics (15 credits)
- **Speech-to-Text**: Audio transcription (3 credits)

### Writing & Analysis Tools
- **AI Detection**: Check if text is AI-generated (3 credits)
- **Humanization**: Rewrite AI text to sound human (10 credits)
- **Plagiarism Check**: Detect copied content (5 credits)
- **URL/Video Summarization**: Extract key points (3 credits)
- **Document Analysis**: Analyze PDFs, DOCX, XLSX, PPTX

## Slash Commands

Users access features via slash commands in the chat interface:

| Command | Function | Credits |
|---------|----------|---------|
| `/image` | Generate images from text | 4-10 |
| `/video` | Create videos from prompts | 38-170 |
| `/edit` | Transform existing images | 10 |
| `/song` | Generate music with lyrics | 15 |
| `/effect` | Create sound effects | 3 |
| `/tts` | Convert text to speech | 5 |
| `/transcribe` | Convert audio to text | 3 |
| `/summarize` | Summarize URLs & documents | 3 |
| `/build` | Generate apps, sites & code | 3 |
| `/humanize` | Make AI text sound human | 10 |
| `/detect` | Check if text is AI-written | 3 |
| `/plagiarism` | Check for plagiarism | 5 |

## File Support

### Supported Upload Types
- **Images**: JPG, PNG, WebP, GIF (up to 50MB)
- **Documents**: PDF, DOCX, TXT, MD
- **Spreadsheets**: XLSX, XLS, CSV
- **Presentations**: PPTX
- **Audio**: MP3, WAV, M4A

### Upload Limits
- Maximum 50MB per file
- Up to 10 files per message

## Pricing

### Guest Mode (No Account)
- 3 messages per day
- Auto-router model only
- Limited context

### Starter Plan ($9/month or $90/year)
- 500 credits/month
- All AI models
- Chat, images, audio
- AI detection & humanize
- Document uploads

### Pro Plan ($20/month or $200/year)
- 1,500 credits/month
- Everything in Starter
- Priority model access
- Credit top-ups anytime
- Priority support

### Ultra Plan ($49/month or $490/year) — Popular
- 4,000 credits/month
- Everything in Pro
- More credits for heavy usage
- 100 GB Keep storage
- Priority support

### Max Plan ($119/month or $1190/year)
- 10,000 credits/month
- Everything in Pro
- Teams workspace
- 250 GB Keep storage
- Dedicated support

### Credit System
- Credits refresh monthly
- Transparent cost per feature
- No hidden fees
- Buy additional credits anytime (Pro+ users)

## Technical Stack

- **Frontend**: React, TypeScript, Vite, Tailwind CSS
- **Backend**: Supabase (PostgreSQL, Edge Functions)
- **AI Routing**: OpenRouter for model access
- **Authentication**: Email/OTP (passwordless)
- **Payments**: Stripe

## Key Features

### Conversation Management
- Automatic conversation history saving
- Searchable message archive
- Folder organization
- Conversation sharing with permissions

### User Experience
- Progressive Web App (PWA) support
- Offline basic functionality
- Real-time streaming responses
- Dark/Light theme support
- Multi-language support (11 languages)

### Team Features
- Team workspaces
- Shared credit pools
- Role-based access (Owner, Admin, Member)
- Domain auto-join
- Team invites

## Privacy & Security

- Encrypted user data
- Chat history can be disabled
- No training on user data without consent
- Secure file processing (not stored permanently)
- GDPR-compliant data handling
- Per-model transparency badges (privacy, training, environmental impact)

## API Access

Krater provides a **public REST API** for Ultra and Max plan subscribers, featuring OpenAI-compatible endpoints for seamless integration into any application.

### API Features
- **OpenAI-Compatible Format**: Familiar `/v1/chat/completions`, `/v1/images/generations`, and more
- **All Features Supported**: Chat, images, image edit, upscale, video, audio, music, sound effects, voice change, text detection, humanization, plagiarism, summarize, search, code, documents
- **Shared Credit Pool**: API usage deducts from your monthly credit pool (web and API together)
- **Rate Limiting**: 60 requests/minute per API key, 500 credits/day per key
- **Security**: API keys are hashed (SHA-256), instantly revocable, maximum 5 active keys per user

### API Endpoints
- `POST /v1/chat/completions` - Chat with any of 350+ models
- `POST /v1/images/generations` - Generate images (Flux 2, Recraft V3, Ideogram V3, etc.)
- `POST /v1/images/edits` - Edit/transform existing images
- `POST /v1/images/upscale` - Upscale images with Crystal AI
- `POST /v1/videos/generations` - Create videos (Sora 2, Kling 3.0, Veo 3.1, Seedance 1.5, LTX-2, etc.)
- `POST /v1/audio/speech` - Text-to-speech with premium voices
- `POST /v1/audio/transcriptions` - Speech-to-text transcription
- `POST /v1/audio/music` - AI music generation
- `POST /v1/audio/effects` - Sound effect generation
- `POST /v1/audio/voice-change` - Voice changing with ElevenLabs
- `POST /v1/text/detect` - AI content detection
- `POST /v1/text/humanize` - Rewrite AI text as human
- `POST /v1/text/plagiarism` - Plagiarism checking
- `POST /v1/text/summarize` - URL/text summarization
- `POST /v1/search` - AI-powered web search
- `POST /v1/code/completions` - Code generation
- `POST /v1/documents/generations` - Document generation
- `GET /v1/models` - List available models

### Getting Started
1. Create an API key in Settings → API
2. Use `Authorization: Bearer kr_live_...` header
3. Start making requests to `https://api.krater.ai/v1/...`
4. View code examples and docs at https://krater.ai/developers

## Questions & Answers

This section maps common user questions to pages on Krater.ai that provide detailed, structured answers.

| Question | Answer Page |
|----------|-------------|
| What are all-in-one AI tools? | https://krater.ai/blog/what-are-all-in-one-ai-tools |
| Is there one AI tool with everything included? | https://krater.ai/blog/is-there-one-ai-tool-with-everything |
| What is the best ChatGPT alternative with multiple AI models? | https://krater.ai/blog/chatgpt-alternative-multiple-ai-models |
| What are the best AI tools under $10 per month? | https://krater.ai/blog/best-ai-tools-under-10-per-month |
| What is the best AI model for long code generation? | https://krater.ai/blog/best-ai-model-for-long-code-generation |
| How can I use multiple AI models in one place? | https://krater.ai/blog/how-to-use-multiple-ai-models-in-one-place |
| Why use more than one AI model? | https://krater.ai/blog/why-use-more-than-one-ai-model |
| Is it better to switch AI models? | https://krater.ai/blog/is-it-better-to-switch-ai-models |
| Compare Kling vs Veo: which AI video generator is better? | https://krater.ai/blog/kling-vs-veo-comparison |
| What is the best AI model for debugging code? | https://krater.ai/blog/best-ai-model-for-debugging-code |
| What is the best AI model for coding? | https://krater.ai/blog/best-ai-model-for-coding |
| Which AI tools are environmentally friendly? | https://krater.ai/blog/which-ai-tools-are-environmentally-friendly |
| Do AI models train on user data? | https://krater.ai/blog/do-ai-models-train-on-user-data |
| What is the best AI model for reasoning? | https://krater.ai/blog/best-ai-model-for-reasoning |
| Which AI tools train on your data? | https://krater.ai/blog/which-ai-tools-train-on-your-data |
| Why is AI needed? | https://krater.ai/blog/why-is-ai-needed |
| What are the best AI tools besides ChatGPT? | https://krater.ai/blog/best-ai-tools-besides-chatgpt |
| What are the top AI tools in the UK? | https://krater.ai/blog/top-ai-tools-uk |
| What are the best AI tools for CFOs? | https://krater.ai/blog/best-ai-tools-for-cfo |
| What are the best AI tools for multiple choice questions? | https://krater.ai/blog/best-ai-tools-for-multiple-choice-questions |
| What are the best AI tools for room decoration? | https://krater.ai/blog/best-ai-tools-for-room-decoration |
| What are the best AI tools for fashion design? | https://krater.ai/blog/best-ai-tools-for-fashion-design |
| How does AI write code? | https://krater.ai/blog/writing-ai-code |
| What is an AI coding website? | https://krater.ai/blog/ai-coding-website |
| What is a coding AI website? | https://krater.ai/blog/coding-ai-website |
| How do AI coding agents compare? | https://krater.ai/blog/ai-coding-agents-comparison |
| Can AI help with CNC programming? | https://krater.ai/blog/ai-for-cnc-programming |
| Can AI write code for me? | https://krater.ai/blog/can-ai-write-code-for-me |
| What are AI writing tools? | https://krater.ai/blog/ai-writing |
| How can I learn AI without coding? | https://krater.ai/blog/how-to-learn-ai-without-coding |
| Can AI do bookkeeping? | https://krater.ai/blog/can-ai-do-bookkeeping |
| Can AI write a business plan? | https://krater.ai/blog/can-ai-write-a-business-plan |
| What is an AI model? | https://krater.ai/blog/what-is-an-ai-model |
| What are the best AI tools under $20? | https://krater.ai/blog/best-ai-under-20-dollars |
| Claude vs ChatGPT for coding? | https://krater.ai/blog/claude-vs-chatgpt-for-coding |
| Claude vs GPT for reasoning? | https://krater.ai/blog/claude-vs-gpt-for-reasoning |
| Why do AI models give different answers? | https://krater.ai/blog/why-do-ai-models-give-different-answers |
| Why is Claude better at coding? | https://krater.ai/blog/why-is-claude-better-at-coding |
| Is ChatGPT still the best AI? | https://krater.ai/blog/is-chatgpt-still-the-best-ai |
| Do AI models make mistakes? | https://krater.ai/blog/do-ai-models-make-mistakes |
| What is the best AI model for small business? | https://krater.ai/blog/best-ai-model-for-small-business |
| What are the best AI tools for students? | https://krater.ai/blog/ai-for-students |
| What is the best AI for fixing JavaScript errors? | https://krater.ai/blog/best-ai-for-fixing-javascript-errors |
| What is an AI tool with model switching? | https://krater.ai/blog/ai-tool-with-model-switching |
| Is there one place for all AI tools? | https://krater.ai/blog/one-place-for-all-ai-tools |
| What is an all-in-one subscription for AI tools? | https://krater.ai/blog/all-in-one-subscription-for-ai-tools |
| Is ChatGPT worth it in 2026? | https://krater.ai/blog/is-chatgpt-worth-it-2026 |
| What are the best AI tools under $10? | https://krater.ai/blog/best-ai-under-10-dollars |

## Help & Support

Help center available at `/help` with categories:
- Getting Started (4 articles)
- Slash Commands (12 articles)
- AI Models (4 articles)
- Plans & Credits (4 articles)
- Account & Settings (5 articles)
- About Krater (2 articles)

## URLs

- **Website**: https://krater.ai
- **App**: https://krater.ai/chat
- **Help Center**: https://krater.ai/help
- **Pricing**: https://krater.ai/pricing
- **Pricing (Markdown)**: https://krater.ai/pricing.md
- **Pricing (Plain text)**: https://krater.ai/pricing.txt
- **Install Guide**: https://krater.ai/install
- **Blog**: https://krater.ai/blog
- **API Docs**: https://krater.ai/developers

## Contact

- **Support**: In-app chat support
- **Website**: https://krater.ai

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*Last updated: July 2026*
*Version: 2.1*