continuity capability
Persistent memory
Retains user or project context for use across separate sessions.
of 10 products classified
Saved chats, project instructions, retrieval over history, and automatically learned preferences are labeled separately in notes.
Direct answer
9 of 10 tracked products have a source-backed state for persistent memory.
That total includes conditional, plan-limited, platform-limited, and experimental support. It is not a count of universal “yes” answers. Records were reviewed on 2026-07-27.
| Product | State | Scope | Evidence | Verified |
|---|---|---|---|---|
| ChatGPT | Supported with conditions | Product-wide | 1 primary | |
| Claude | Selected plans | Pro, Max, Team, Enterprise | 1 primary | |
| Perplexity | Supported | Product-wide | 2 primary | |
| Codex | Supported with conditions | ChatGPT Plus, Pro, Business, Enterprise, API | 3 primary | |
| Claude Code | Supported | Two mechanisms: user-written CLAUDE.md or AGENTS.md files loaded at session start, and auto memory that Claude writes from corrections and preferences. Official pages do not name a plan gate. Auto memory can be toggled off. | 2 primary | |
| Cursor | Supported with conditions | User-written Rules are the current documented cross-session context and are not automatic preference learning. The Rules page says models do not retain memory between completions. Cursor 1.0 announced Memories as a beta that stores conversation facts per project, managed from Settings. Team Rules are documented for Team and Enterprise plans; that vendor label is not mapped onto the seed plan string Teams. Project and user rules are not given a plan gate on the Rules page. | 2 primary | |
| GitHub Copilot | Selected plans | Pro, Pro Plus | 2 primary | |
| Devin Desktop | Supported with conditions | Product-wide | 1 primary | |
| Replit Agent | Supported with conditions | Product-wide | 1 primary | |
| Gemini Code Assist | Unknown or unverified | Product-wide | Not verified |
Selection guidance
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A support state only becomes decision-grade when the required plan, product surface, platform, and operating conditions match your use case. Open a record before treating a matrix symbol as a purchase decision.
Product vendors change feature availability quickly. Use the evidence link and verification date to check the exact current rollout.