Where team memory can live
With Anthropic's memory tool, your application holds the storage. The tool operates client-side: Claude requests file operations, your application runs them, and you control where and how the data is stored through your own infrastructure (Anthropic docs).
Deleting a conversation is not the same as deleting memory. OpenAI notes that deleting the original chat does not automatically delete a separate saved memory (OpenAI Help). Deletion and Memory updates can also take time to propagate, and logs of deleted saved memories may be retained for up to 30 days (OpenAI Help).
Administering memory settings
ChatGPT workspaces place memory under owner and admin control: workspace owners and admins can manage supported memory settings and role permissions (OpenAI Help). OpenAI also notes that memory features and controls can vary by plan, region, platform, and workspace settings (OpenAI Help).
With Anthropic's memory tool, safety checks sit in your own implementation. Anthropic requires implementations to validate every path in every command to prevent directory traversal attacks (Anthropic docs). A client-side implementation must also handle creating, reading, updating, deleting, and moving memory files (Anthropic docs).
Maintaining memory over time
Anthropic's memory tool supports creating, reading, updating, deleting, and moving memory files (Anthropic docs). Anthropic recommends tracking memory file sizes, capping how large a file can grow, and periodically deleting files that have not been accessed in a long time (Anthropic docs).
Retrieval happens on demand: rather than loading all relevant information up front, an agent records what it learns in memory files and reads them back on demand (Anthropic docs). ChatGPT memory does not retain every detail from every conversation, and what it uses can change as your context changes (OpenAI Help).
Where KnowMan fits
KnowMan is built for one person's library today (personal knowledge base guide). Team plans are not available yet.
For one reader's library, start with persistent memory for AI agents or giving your AI context. To connect an assistant, see the MCP server knowledge base guide.
Questions people ask
Can a team share ChatGPT memory?
Within limits. ChatGPT memory can draw on saved memories, past chats, custom instructions, saved files, and connected apps, depending on plan and region (OpenAI Help). Workspace owners and admins manage supported memory settings and role permissions, and Project-only memory keeps context inside its project (OpenAI Help).
Is Claude Code memory shared across machines?
No. Auto memory is machine-local, shared only across worktrees and subdirectories of the same git repository (Claude Code docs). Project instructions are the team-shared part, distributed through version control (Claude Code docs).
Who controls the data in Anthropic's memory tool?
Your application does. The tool runs client-side, so Claude requests file operations and your application executes them, with storage in your own infrastructure (Anthropic docs). Anthropic says this can support building up a knowledge base over time (Anthropic docs).
Does deleting a chat delete its saved memory?
Not automatically. OpenAI states that deleting the original chat does not automatically delete a separate saved memory (OpenAI Help). Deletion and Memory updates can take time to propagate, and logs of deleted saved memories may be retained for up to 30 days (OpenAI Help).