Soul Alchemy vs ChatGPT Memory vs Claude Projects

April 7, 2026 · 6 min read · By Nbidea

Three tools claim to solve the same problem: making AI remember who you are. But they work in fundamentally different ways, cost different amounts, and — most importantly — one lets you own your data while the others don't.

Here's an honest breakdown.

The Comparison at a Glance

FeatureChatGPT MemoryClaude ProjectsSoul Alchemy
How it worksAuto-stores facts from conversationsYou write custom instructions per projectGenerates identity files from your writing
PortableNo — locked in OpenAINo — locked in AnthropicYes — plain text files, any AI
What it capturesBullet-point factsYour instructions (manual)Full identity: values, style, personality
Cross-platformChatGPT onlyClaude onlyChatGPT, Claude, Gemini, Llama, any AI
You control itCan delete itemsYou write it yourselfYou own the files
PricingIncluded in Plus ($20/mo)Included in Pro ($20/mo)One-time purchase
Survives platform switchNoNoYes

ChatGPT Memory: Convenient, But Fragile

ChatGPT's Memory feature automatically picks up facts from your conversations. It might store "User is a product manager" or "User prefers concise answers."

What it does well: You don't have to do anything. It works in the background. For casual users, this is fine.

Where it breaks:

Claude Projects: Powerful, But Manual

Claude lets you create Projects with custom instructions. You can write detailed context about yourself, your work, your preferences.

What it does well: You're in control. You write the instructions. Claude follows them precisely. For power users with specific workflows, this is excellent.

Where it breaks:

Soul Alchemy: Portable Identity You Own

Soul Alchemy takes a different approach entirely. You paste your own writing — journals, emails, chat logs, notes — and it generates two files:

What it does well:

Where it breaks:

So Which Should You Use?

Use ChatGPT Memory if:

You only use ChatGPT and want zero-effort convenience. You're okay with OpenAI deciding what matters about you.

Use Claude Projects if:

You're a power user with specific workflows. You can articulate exactly what you want Claude to know. You don't need cross-platform portability.

Use Soul Alchemy if:

You use multiple AI platforms. You want your identity to be portable. You want it generated from your real writing, not your best guess about yourself. You want to own your data — not rent it from a platform.

The question isn't which AI remembers you best. It's whether your identity belongs to you or to a platform.

Create your soul archive

One-time purchase. Works with any AI. Your identity, your file, forever.

Try Soul Alchemy