These tools integrates with
ZepvsOpenAI API
Long-term memory and session management for AI assistants versus GPT-5 era models, embeddings, and Responses API from OpenAI
Compare interactively in Explore →Choose Zep when…
- •You're building a conversational AI assistant that needs session continuity
- •You need structured fact and entity extraction from conversation history
- •You want temporal memory — your AI knowing when it learned something
Choose OpenAI API when…
- •You need the broadest ecosystem and most integrations
- •GPT-4 or o-series reasoning models are required
- •Assistants API, fine-tuning, or batch API are needed
Side-by-side comparison
Field
Zep
OpenAI API
Category
Memory & Persistence
LLM Infrastructure
Type
Open Source
Commercial
Free Tier
✓ Yes
✗ No
Pricing Plans
Cloud: $99/mo
API: Per token
GitHub Stars
⭐ 4,000
—
Health
●60 — Slowing
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Zep
Memory and session management platform for AI assistants. Automatically extracts facts, preferences, and entities from conversations and surfaces them as structured memory. Supports temporal reasoning — knowing what was discussed last week versus now.
OpenAI API
API access to GPT-5, GPT-5.5, o3/o4 reasoning models, and the Responses API; plus embeddings, image, audio, and Realtime endpoints. The most widely deployed LLM API in production.
Shared Connections2 tools both integrate with
Only Zep (4)
LangGraphOpenAI APICogneeGraphiti
Only OpenAI API (37)
CrewAIAutoGenLlamaIndexPydanticAIsmolagentsAgnoMastraLiteLLMPortKeyLangfuse
Explore the full AI landscape
See how Zep and OpenAI API fit into the bigger picture — 235 tools, 543 relationships, all mapped.