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Mem0 vs promptfoo

Side-by-side comparison with live GitHub signals. Last updated May 16, 2026.

M

Mem0

Persistent, adaptive memory layer for AI agents and assistants

OSSfreemium
55.8Ktoday311
p

promptfoo

Test and evaluate LLM prompts and agents — 11K+ stars

OSSFree
21.3Ktoday278
MetricMem0promptfoo
GitHub Stars55.8K21.3K
Contributors311278
Last CommitMay 16, 2026May 16, 2026
Open Issues361268
Licenseopen-sourceopen-source
Pricingfreemiumopen-source
Free TierYesYes
Categorydev-toolsdev-tools
TrendingNoNo

Shared Tags

open-source

Only in Mem0

memorypersonalizationagentsllm-ops

Only in promptfoo

evaluationtestingred-teamingsecurityci-cd

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.

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About 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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