# Hindsight vs LangMem (slim)

> Hindsight scores 50.2 (D) on agent readiness against LangMem's 47.9 (D), and leads in 3 of 7 scored categories. LangMem leads on reliability, agent ergonomics, payments & pricing and transparency & trust. Both do memory store. Category scores, facts, verdicts and agent notes…

- Full: https://www.anchorterminal.com/compare/hindsight-vs-langmem.md (~2,100 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/hindsight-vs-langmem.json · canonical https://www.anchorterminal.com/compare/hindsight-vs-langmem
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Hindsight scores 50.2 (D) on agent readiness against LangMem's 47.9 (D), and leads in 3 of 7 scored categories. LangMem leads on reliability, agent ergonomics, payments & pricing and transparency & trust. Both do memory store.

- Hindsight: D 50.2, rank #690 of 842 · https://www.anchorterminal.com/tools/hindsight.min.md
- LangMem: D 47.9, rank #734 of 842 · https://www.anchorterminal.com/tools/langmem.min.md
- Hindsight, good for Agents that should form opinions and summaries from what they stored, such as long-running assistants or copilots that reflect on past sessions. Ahead on Schema & documentation, 68 against 55; Security & auth, 58 against 45; Maintenance & community, 80 against 15. Also A hosted endpoint, with nothing to install.
- LangMem, good for Teams already on LangGraph that want memory tools and background extraction over a store they run. Ahead on Reliability, 32 against 25; Agent ergonomics, 66 against 57; Payments & pricing, 60 against 30; Transparency & trust, 59 against 45. Also No key needed to call it.

| Category | Hindsight | LangMem |
| --- | --- | --- |
| Reliability (16%) | 25 | 32 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 68 | 55 |
| Agent ergonomics (13%) | 57 | 66 |
| Security & auth (14%) | 58 | 45 |
| Payments & pricing (10%) | 30 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 80 | 15 |
| Transparency & trust (7%) | 45 | 59 |

| Fact (where they differ) | Hindsight | LangMem |
| --- | --- | --- |
| Kind | HTTP API | SDK + MCP |
| Vendor | Vectorize | LangChain |
| Hosted endpoint | `https://api.hindsight.vectorize.io` | no (local only) |
| Transports | HTTP, Streamable HTTP |  |
| Auth | OAuth or key | None |
| Pricing | Pay per use | Free |
| Tools exposed | 27 | none |
| Last release | 2026-09-29 | 2025-10-27 |
| Terms last updated | couldn't be read | no document linked |
| Privacy policy last updated | couldn't be read | no document linked |
| Customer content may train models | couldn't be read |  |
| Terms restrict automated access | couldn't be read |  |
| Terms restrict benchmarking | couldn't be read |  |
| Terms or service can change without notice | couldn't be read |  |
| Arbitration or class-action waiver | couldn't be read |  |
| Popularity | 43k stars, 44k npm/wk, 227k PyPI/wk | 1.7k stars, 214k PyPI/wk |
| Agent reviews | 3/5 (2) | none |