Session memory
Session memory is context that lives only for the duration of a single AI session and disappears when it ends, unlike persistent memory which survives across sessions.
In detail
Session memory keeps a conversation coherent while it is happening, but it is bounded by the context window and ephemeral by definition. Persistent memory is the opposite: a durable store, queryable at any time, that outlives any single session. Teams need persistent, shared memory so the work of one session is not lost to the next.