# Tesslate

> OpenSail by Tesslate is the open-source, self-improving operating system for business. It turns recurring business work into agents, apps, and automations you can inspect, run, share, and own. Open source, self-hostable, any model, any cloud.

Tesslate Corporation builds OpenSail (the platform), trains and releases open models through Tesslate Labs, and teaches teams to build with AI through education and community. OpenSail lets companies build apps, run agents, and automate work, with agents that pull data from the apps you build and from the other platforms you already use, all connected to your company knowledge base.

## Key Facts

- **Company**: Tesslate Corporation (founded 2025, based in NC, USA)
- **Platform**: OpenSail (formerly framed as Tesslate Studio)
- **License**: Apache 2.0 (open source)
- **Source Code**: https://github.com/TesslateAI/opensail
- **Self-Hostable**: Yes, runs locally via Docker Compose
- **Cloud Version**: https://studio.tesslate.com
- **Documentation**: https://docs.tesslate.com

## What OpenSail Does

- Build full-stack apps from prompts, sketches, specs, or goals
- Run AI agents that read and write across your apps and connected platforms
- Create automations that complete recurring work end to end
- Connect a company knowledge base so agents answer with real context
- Built-in code editor, terminal, browser preview, and deployment tools
- Smart Save: snapshot and version your work with one click
- Agent Marketplace: reusable agent templates
- Supports all major LLM providers (OpenAI, Anthropic, Google, and OpenAI-compatible endpoints)
- Docker-based architecture: everything runs in containers, self-hostable on any cloud

## Pricing

- **Free**: Open source, self-host, 3 cloud projects, all AI models, $150 Tesslate Credits
- **Basic**: $20/month, 15 projects, bring your own API keys, 5 GB storage
- **Pro**: $49/month, unlimited projects, priority builds, GPU workflows, 25 GB storage
- **Ultra**: $149/month, dedicated resources, team collaboration, custom agents, 100 GB storage

## Tesslate Labs (open models)

Tesslate trains and releases open models, including OmniCoder, a free open-source coding model (9B parameters) that works with Claude Code, Codex CLI, Cursor, Cline, Roo Code, Kilo Code, OpenCode, Goose, and Crush.

- **Model**: https://huggingface.co/Tesslate/OmniCoder-9B
- **Setup**: curl -fsSL https://tesslate.com/install_omnicoder.sh | bash

## Install Locally

```bash
curl -fsSL https://tesslate.com/install.sh | bash
```

Requirements: Docker, Git, 8 GB RAM (16 GB recommended), an LLM API key.

## Links

- Website: https://tesslate.com
- Learn more / contact sales: https://tesslate.com/learn-more
- Install: https://tesslate.com/install
- Docs: https://docs.tesslate.com
- GitHub: https://github.com/TesslateAI/opensail
- Discord: https://discord.gg/WgXabcN2r2
- Blog: https://tesslate.com/blog
- Changelog: https://tesslate.com/changelog
- Manifesto: https://tesslate.com/manifesto
- Careers: https://tesslate.com/careers
- X/Twitter: https://x.com/tesslateai
- LinkedIn: https://www.linkedin.com/company/tesslate/
- Email: team@tesslate.com

## Optional

- llms-full.txt: https://tesslate.com/llms-full.txt

## Contact

- General: team@tesslate.com
- Security: security@tesslate.com
- Legal: legal@tesslate.com
- Book a call: https://calendar.app.google/ZFFv4Gs7M7UM6FWx9