'reflect' synthesizes conclusions across all memories; retains full turns including tool calls.
- Storage
- Local Postgres daemon, or cloud
- Retrieval
- Temporal knowledge-graph traversal with entity resolution; 'reflect' synthesizes conclusions across memories.
- Self-host
- Self-host: moderate
- License
- MIT
- Pricing
- Free local; cloud paid · Free + paid
- GitHub stars
- 17,717
- Last release
- 2026-06-18
- Last commit
- 2026-06-27
- First catalogued
- 2026-06-28
Strengths
- Strongest neutral benchmark scores
- Temporal KG + entity resolution
- Reflect synthesis
Watch out
- More setup; lean API (3 tools)
Best for
- Apps where recall accuracy is the priority (strong LongMemEval scores)
- Persistent memory for coding agents (Claude Code / Cursor / OpenCode)
Benchmark results
| Benchmark | Value | Backbone | Trust | Source |
|---|---|---|---|---|
| beam-10m | 64.1 accuracy | — | Self-reported | Hindsight (Vectorize) ↗ |
| longmemeval | 91.4 accuracy | Gemini 3 Pro | Self-reported | Hindsight (Vectorize) ↗ |
Sources
- https://github.com/vectorize-io/hindsight (vendor)
- https://arxiv.org/html/2512.12818v1 (paper)
- Hindsight for persistent coding-agent memory (OpenCode / Claude Code / Cursor) (vendor)
Last verified 2026-06-28 · updated by refresh-framework-cards