mem0 vs Pieces
A side-by-side comparison of mem0 and Pieces, two Memory tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
At a glance
| Attribute | mem0 | Pieces |
|---|---|---|
| Category | Memory | Memory |
| Pricing | FREEMIUM | FREEMIUM |
| License (differs) | Open core | Proprietary |
| Deployment (differs) | Hybrid | Local |
| Platforms (differs) | API, CLI | macOS, Windows, Linux, CLI, VS Code extension, Browser extension |
| Model support (differs) | BYO key / model | Multi-model |
| Vendor (differs) | Mem0 | Pieces |
The honest brief
mem0
Fastest path to agent memory — extracts distilled facts with a tiny token footprint and the biggest community.
- Quick to adopt, broad framework integrations
- Stores distilled facts, small footprint
- Vector + graph + key-value storage
- Open-source with usable free tier
- Weaker on temporal/state-change queries
- LLM call on every write adds latency
- Test deletion/conflict handling for regulated use
- More library than full memory server
Pieces
Captures a rolling ~9-month work timeline on-device and air-gapped by default, so memory questions never leave your machine.
- Captures context across all your apps
- Long-Term Memory of work context
- Cloud or local LLMs, or BYO key
- Plugs into VS Code, JetBrains, browser
- Background capture is resource-heavy
- Developer-centric, niche audience
- Memory accuracy varies across apps