Mem0 vs promptfoo
Side-by-side comparison with live GitHub signals. Last updated May 16, 2026.
| Metric | Mem0 | promptfoo |
|---|---|---|
| GitHub Stars | 55.8K | 21.3K |
| Contributors | 311 | 278 |
| Last Commit | May 16, 2026 | May 16, 2026 |
| Open Issues | 361 | 268 |
| License | open-source | open-source |
| Pricing | freemium | open-source |
| Free Tier | Yes | Yes |
| Category | dev-tools | dev-tools |
| Trending | No | No |
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About Mem0
Mem0 provides a managed memory layer that gives AI agents and chatbots the ability to remember user preferences, past interactions, and contextual facts across sessions. It automatically extracts and stores relevant memories from conversations, retrieves them at inference time via semantic search, and handles forgetting of stale information. Compatible with any LLM and easy to self-host, Mem0 is the most widely adopted open-source memory solution for AI applications.
View full listingAbout promptfoo
promptfoo is an open-source tool for testing, evaluating, and red-teaming LLM applications. Run automated evaluations across multiple models and prompts, compare outputs side-by-side, detect regressions, and test for security vulnerabilities. Supports custom assertions, CI/CD integration, and model-graded evaluations.
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