LettiB is a multi-AI workspace designed for AI power users. The platform integrates multiple artificial intelligence (AI) models into a single workspace, allowing users to compare outputs from models such as ChatGPT, Claude, Gemini, and Grok simultaneously.
One of its core features is the ability to synthesize the best ideas from these models into a single authoritative answer, which can be saved for future reference.
Additionally, LettiB allows users to organize their work by project, making it easier to manage and search through their data. Essential features also include the ability to add OpenAI, Anthropic, Google, Groq, and xAI keys once for connection, enabling the transaction process to be direct between users and AI service providers.
Moreover, the platform prioritizes privacy with features like encrypted keys and a policy of not training models with user data. Users maintain comprehensive ownership of their data and outputs.
Research basis: This is a source-based directory listing prepared from public product information; it is not represented as a hands-on test. Last updated August 4, 2026. Read our methodology.
Exact feature availability by plan was not specified in the source.
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