GBrain

GBrain is a shared workspace where a team prompts one AI together and keeps a single memory that every AI tool it uses can read. Instead of each person chatting alone with a separate assistant, the whole team works in one conversation, anyone can ask or follow up, and everyone sees how an answer was reached. The memory is a folder of plain markdown notes covering people, projects, decisions and how the team works. It connects over MCP to ChatGPT, Claude, Claude Code, Cursor, OpenClaw and other compatible tools, so a correction made in one place reaches the rest. Teams connect accounts such as Gmail, calendar and the web once; GBrain holds the sign in and returns results to the AI rather than passwords. Each connected AI can be given read only or full access, and calls are logged on one record. Scheduled jobs can run unattended, and the workspace can switch between Anthropic and OpenAI models. It is built for small teams that want shared context across AI tools. Pricing is a single plan called Explorer at $199 a month per workspace regardless of team size, billed monthly, with $100 of usage credit included each month for AI models and metered tools. Additional credit can be bought. The vendor states that the notes can be copied out as plain files and that the open source parts are free to run yourself. The product was founded by Brad Gessler, Garry Tan and Jamison Mercurio and is backed by Y Combinator.