| What it does | Learn programming by building real software with an AI tutor
| Desktop app for AI agents working with open source and cloud models
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| Stage | Not given
| Startup
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| Founded | Not given
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| Based in | PT
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| Pricing model | Freemium
| Freemium
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| Pricing | Free: 2,000 credits once, no card required. Learner: 5,000 credits/month. Scholar: 11,000 credits/month. Fellow: 38,000 credits/month. Campus: contact for pricing. One-time top-ups available. Yearly plans offer 2 months free.
| Free: Local Ollama models with unlimited usage, no account required. Cloud Plus: $20/month including $20/m of usage credits (10% ChatOSS fee), web search, and BYOK unlock. Cloud Max: $100/month including $100/m of usage credits. BYOK Yearly: $39/year to use your own API keys from Ollama Cloud, OpenR
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| Key features | - In-browser code editor and terminal for writing and running code
- Structured syllabuses with lessons that must be completed in order
- Knowledge checks after each lesson to verify understanding
- Final assessments taken without tutor assistance
- Generate custom courses for topics not in the catalog
- Progress is saved and can be resumed exactly where left off
- Credit-based usage allows flexible learning without seat-based fees
- Unused monthly credits roll over for up to two months
| - Agents work directly inside repositories and write code
- Extensible suite of apps you can build
- Switch between local Ollama and cloud models mid-conversation
- Support for multiple open source models including Qwen, DeepSeek, GLM, Minimax, Gemma, Nemotron
- Run many agents in parallel on models of your choice
- Web search capability on cloud plans
- Built-in apps including PR Reviewer and Migration Bot
- BYOK support for Ollama Cloud, OpenRouter.ai, Anthropic, and OpenAI-compatible providers
- No data retention for local or cloud conversations
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| What makes it different | - Full syllabus visible upfront before starting any lesson or course
- No expiring free credits: 2,000 credits to learn risk-free without providing payment info
- Projects run in the browser without requiring software installation
- Generate custom syllabuses on demand for any language or topic
| - Free forever with local Ollama models, no account or credit card required
- Run AI agents directly in your code repositories for real work
- Switch between open source and cloud models without restarting
- Flat 10% fee on cloud plans with all usage going to model providers
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | 9 ● no change since last check | 3 ● no change since last check |
| Trust Flow (Majestic) | 5 | 3 |
| Citation Flow (Majestic) | 30 | 27 |
| Referring domains (Majestic) | 87 | 68 |