LLMnesia vs ChatHub — AI History Search vs Multi-Model Chat

What ChatHub actually is

ChatHub (200,000+ users, 4.7★) is a powerful multi-model interface. You open it and can query ChatGPT, Gemini, Claude, Llama, and 20+ other models simultaneously in a side-by-side view. It supports three access methods: your existing logged-in accounts, your own API keys, or a ChatHub subscription.

It also offers a local chat history feature with full-text search — but this only covers conversations you have through ChatHub itself.

The critical distinction

This is the key thing to understand before comparing these two tools:

ChatHub history = conversations you ran through the ChatHub interface, stored locally within the extension.

LLMnesia history = conversations you had natively on chatgpt.com, claude.ai, gemini.google.com, and other platforms — indexed automatically in the background as you work.

If you use ChatGPT natively on chatgpt.com — which most users do — those sessions are invisible to ChatHub's history search. ChatHub only knows about the prompts you ran through its own interface.

What ChatHub does well

• Side-by-side model comparison across 20+ AI services simultaneously.
• Prompt library — manage and discover frequently used prompts.
• Local chat history with full-text search for conversations run through ChatHub.
• Smart web access — enrich responses with live web results.
• Custom chatbots — integrate any OpenAI-compatible API.
• Flexible access — use your own accounts, API keys, or ChatHub's subscription service.

What LLMnesia does differently

• Indexes native sessions — captures conversations from chatgpt.com, claude.ai, gemini.google.com and others as you use them normally.
• No interface switch required — you work in the platform you prefer; LLMnesia runs in the background.
• Jump-back links — results return you to the original conversation on the original platform.
• Local-first — your index stays on your device.

Choosing between them

Use ChatHub when:

• You want to query multiple AI models simultaneously in one view.
• You are benchmarking model quality or comparing responses.
• You are willing to run prompts through ChatHub's interface to benefit from its history.

Use LLMnesia when:

• You work natively in ChatGPT, Claude, Gemini, and want your full history indexed.
• You want retrieval to cover all your sessions, not just the ones run through a separate interface.
• Search is the primary need, not real-time model comparison.

Use both when:

• You do active multi-model comparison work and need searchable retrieval across all your native AI sessions.