Zep AI
Zep AI is an AI-powered Development tool — Long-term memory for AI assistants. Best for: Development. Pricing: Freemium (GateOnAI Score: 45/100).
Long-term memory for AI assistants
It provides a persistent memory layer that lets AI assistants retain information across sessions, enabling context continuity beyond the model's native token limit. The platform stores user interactions as structured records, then indexes them with vector embeddings for fast similarity search. Developers can query the memory via a simple REST API or SDK, specifying filters such as time range, user ID, or custom tags. Built‑in summarization compresses older entries, preserving essential facts while reducing storage. Zep also offers a real‑time streaming endpoint that pushes relevant memories to the model during generation, reducing prompt length. Integration hooks exist for LangChain, LlamaIndex, and custom Python code, so the memory can be swapped into existing pipelines with minimal changes. Typical users include chatbot developers, enterprise support bots that need to remember preferences, prior orders, or ongoing projects. The free tier grants up to 10,000 stored messages per month and basic retrieval latency, sufficient for hobby projects or early prototypes. Paid plans raise limits, add dedicated clusters, and provide SLA‑backed uptime, making the service viable for production workloads. Compared with raw vector stores, Zep adds automatic expiration policies, role‑based access controls, and built‑in analytics that show memory usage trends. Pricing is subscription‑based per million records, with a pay‑as‑you‑go option for occasional spikes. The service runs in a multi‑tenant cloud environment, so data never leaves the provider’s infrastructure unless exported via the API. Encryption at rest and in transit meets common compliance standards, but on‑premise deployment is not offered, which may deter highly regulated firms. Rate limits on the free tier can throttle high‑frequency bots, requiring an upgrade for real‑time customer support. Documentation covers core concepts well, yet advanced custom scoring functions still require manual code changes.
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Works Well With
Tools that Zep AI genuinely connects with, based on real input/output compatibility data (not just shared category):
- Future AI - AI personal training with real human coaches.
- Yi AI - 01.AI open-source large language model
- Cohere - Enterprise AI platform with customizable language models.
- NovelAI - AI story generator with customizable models for fiction
- Microsoft 365 Copilot - AI Copilot across Word Excel PowerPoint Teams
- Google Gemini - Google's most capable AI assistant for text, code and images.