Polign

The product is a vector and hybrid search database that provides durable, searchable memory for AI agents stored in customer-owned object storage. It solves agent memory availability, the cost of keeping mostly-cold memory in always-on stores with per-query billing, and keeping sensitive memory under own keys. It is for developers and engineering teams in businesses building AI agents that need memory infrastructure. It is positioned against current vector stores by using stateless serving nodes that cache hot memory locally while the bucket remains the single durable copy, with writes confirmed only after logging to the bucket.

Key features

• Vector and hybrid search
• Search by meaning, keyword, or fused
• Metadata filtering on queries
• Durable writes confirmed in bucket log
• Read-your-writes consistency
• Stateless serving nodes
• Hot memory cached locally
• Scale nodes up, down, or to zero
• Single binary install
• Runs in own object storage (S3)
• Per-collection ordered log
• In-memory speed recalls