AI Tool WatchRemember Context Over Time
Can retain preferences, memory, or persistent context across sessions.
Definition
What counts
- explicit memory features
- saved preferences reused later
- persistent user context across chats
What doesn't count
- only remembering content inside a single active session
- temporary context windows with no persistence
Product Availability (4 products)
ChatGPT
Memory
Memory lets ChatGPT remember your preferences and context across conversations. **All plans get saved memories**; Plus/Pro also get full chat history reference for richer personalization.
Access: free
| Plan | Available | Notes |
|---|---|---|
| Free | ✓ | |
| Go | ✓ | |
| Plus | ✓ | |
| Pro | ✓ | |
| Team | ✓ | |
| Enterprise | ✓ |
Surfaces: Windows macOS iOS Android web
Verified: 2026-03-19
Claude
Memory
Memory lets Claude remember your preferences and context across conversations—corrections, working style, recurring topics. **Free on all plans** since March 2026. Enable it in Settings → Capabilities → Memory. You can also import memories from other AI tools using the memory import tool.
Access: free
| Plan | Available | Notes |
|---|---|---|
| Free | ✓ | |
| Pro | ✓ | |
| Max 5x | ✓ | |
| Max 20x | ✓ | |
| Team | ✓ | |
| Enterprise | ✓ |
Surfaces: Windows macOS Linux iOS Android web API
Verified: 2026-03-19
Gemini
Past Chats (Memory)
Gemini's Past Chats feature lets it remember your preferences and context across conversations. Enable it in Settings → Personal context. **Now free for all users**—it rolled out to non-paying accounts in late February 2026. You can control what Gemini remembers via 'Instructions for Gemini' in settings.
Access: free
| Plan | Available | Notes |
|---|---|---|
| Free | ✓ | |
| Google AI Plus | ✓ | |
| Google AI Pro | ✓ | |
| Google AI Ultra | ✓ |
Surfaces: iOS Android web
Verified: 2026-03-07
Grok
Memory
Grok has persistent memory that carries user preferences and context across conversations. **Available on all tiers including free.** Memory is selective and automatic—Grok stores key facts it deems important, but users cannot currently inspect or edit what has been saved. The feature appeared with Grok 3 in early 2025 and behavior can be inconsistent across platforms.
Access: free
| Plan | Available | Notes |
|---|---|---|
| Free | ✓ | |
| Premium | ✓ | |
| Premium+ | ✓ | |
| SuperGrok | ✓ |
Surfaces: Windows macOS Linux iOS Android web
Verified: 2026-03-07
Also Known As
AI memory, remember conversations, persistent context, long-term memory, remember preferences