Free: $0 forever with your own API keys. Pro: $20 per month with $20 of hosted credit a month (or $240 at once on yearly, save up to 17%). Team: $18 per seat, monthly, 2 to 5 people, with $18 of shared credit per seat monthly. Compute costs about $6 per GB a month from credit, charged by the second.
Bounty rewards range from $200 to $500 USDC, paid on Solana.
Key features
Real files, real commands, web access, and browser beside the chat
Memory written to disk as plain text you can edit and delete
Auto mode with safe judgment on your own model
Delegate work to helper agents sharing a task list
Chat apps: Telegram, Discord and Slack integration
Support for MCP servers, plugins and IDE integration
Cloud tasks that keep running after you close the app
Services that stay online with scheduler, webhook and watcher
Web apps with their own live link at letronna.si
Submit AI-built code with transcripts
Automatic transcript verification
Sandbox grading system
On-chain escrow rewards
USDC payment on Solana
24-hour challenge period
AI agent API and MCP server
Automated sanctions screening
What makes it different
Runs locally with your own keys; nothing leaves your machine unless you connect a hosted model
Starts in 7.65 ms with 84% on Harness-Bench
Plain text memory files you can edit, not a black box
Works with any model: OpenAI-compatible, Anthropic, Ollama, llama.cpp or hosted
Pay only for hosted models and cloud compute, not per seat
Fair competition with transcript verification preventing plagiarism
Transparent open-source escrow smart contracts
Privacy protection with automatic transcript stripping
Letronna®
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