pref0 vs CrewAI Memory

CrewAI has built-in memory for multi-agent crews. pref0 provides preference learning that works with any framework. Both help agents retain context, but they differ in scope and flexibility.

pref0CrewAI Memory
What it storesStructured preferences with confidence scoresShort-term, long-term, entity, and contextual memory
ScopeCross-session preference learningWithin-crew and cross-execution memory
Confidence scoringBuilt-in, compounds over timeNot available
FrameworkFramework-agnostic REST APICrewAI-specific (Python only)
StorageHosted — no infrastructureLocal ChromaDB and SQLite
Best forLearning user preferences across any agentSharing context within a CrewAI crew

Key differences

Framework-agnostic vs. framework-locked

pref0 works with any agent framework via REST API — CrewAI, LangChain, Vercel AI SDK, or custom agents. CrewAI Memory only works within CrewAI crews. If you switch frameworks, CrewAI memories don't come with you.

Preference learning vs. general memory

pref0 extracts structured preferences with confidence scores from conversations. CrewAI Memory stores raw interactions, task results, and entity references. CrewAI's memory helps crews collaborate; pref0 helps agents personalize to individual users.

Hosted vs. local storage

pref0 is a hosted API — no databases to manage. CrewAI Memory uses local ChromaDB and SQLite, which works for development but requires infrastructure planning for production.

When to use each

Use pref0 when...

  • You want preference learning that works across any framework
  • You need structured preferences with confidence scoring
  • You're building user-facing personalization
  • You want a hosted solution with no local storage to manage
  • You use multiple agent frameworks or might switch later

Use CrewAI Memory when...

  • You're building multi-agent crews in CrewAI
  • You need agents in a crew to share context during execution
  • You want entity tracking across tasks
  • You're fully committed to the CrewAI ecosystem

Frequently asked questions

Can I use pref0 with CrewAI?

Yes. Enable CrewAI Memory for crew collaboration, and use pref0 for per-user preference learning. Inject pref0 preferences into your agent's system prompt or backstory.

Does CrewAI Memory learn user preferences?

Not specifically. CrewAI Memory tracks interactions, task results, and entities within a crew. It doesn't extract structured preferences with confidence scores from user conversations.

Which works in production?

pref0 is a hosted API designed for production use. CrewAI Memory uses local SQLite and ChromaDB, which works for development but requires additional infrastructure planning for production deployments.

Other comparisons

vs Mem0vs Zepvs Custom Memoryvs RAGvs LangChain Memoryvs LangMemvs Lettavs ChatGPT Memoryvs Pineconevs Semantic Kernel

Not memory. Preference learning.

Your users are already teaching your agent what they want. pref0 makes sure the lesson sticks.

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