AgentKeeper – Cross-model memory for AI agents
Recovers 95% critical facts when switching GPT-4 ↔ Claude with real benchmarks.

Model switching mid-conversation plus cross-chat memory, but ChatGPT app and Claude app already own this.
Mobile users, AI power-users, researchers, decision-makers
OpenAI ChatGPT App · Anthropic Claude App · Perplexity
Recovers 95% critical facts when switching GPT-4 ↔ Claude with real benchmarks.
Portable AI memory across Claude, GPT, Gemini using your own Postgres knowledge graph.
Drag-to-branch is the clear selling point: you can fork any message and pursue alternate prompts while that branch only inherits direct ancestors. The BYOK approach (API key stored in your browser + local Express proxy) keeps it lightweight and safe for a demo, but it's clearly a concept build tied to Claude rather than a multi-model, production-ready tool.
Claude memory is solved—Pinecone, LLamaIndex, and Continue already do this.
Persistent agent context that syncs across IDEs and branches, but still unproven at scale.
Inspectable memory records beat black-box embeddings for AI agent context persistence.