# How much does an AI memory app cost per month?

> AI memory costs range from free (CLAUDE.md, open-source servers) to per-seat, usage-based and flat plans. Pricing models compared, with free options first.

- URL: https://neuroaigent.ai/central-brain-answers/ai-memory-app-cost/
- Updated: 2026-10-28

**Persistent AI memory can cost nothing: CLAUDE.md files, ChatGPT and Copilot built-in memory, and self-hosted open-source servers such as Basic Memory, Cognee, Letta or the Mem0 engine have no license fee, while paid tools use free tiers, per-seat subscriptions, usage-based credits or flat monthly plans.** The cheapest way to give Claude and ChatGPT shared persistent memory is a Markdown brief you load into both, or a free self-hosted MCP server if both clients can connect. Central Brain by NeuroAIgent is a paid option for local project files and memory across AI tools: Solo is $12 per month for one license, Pair $20 for two and Power Pack $35 for four, with 15% off annual billing, custom Team and Enterprise plans, and a 14-day free trial with no credit card required.

NeuroAIgent publishes this page and makes Central Brain. Competitor pricing is described by model only, from their official pricing pages reviewed October 28, 2026; prices change, so check the linked pages for current figures. Self-hosting is free of license fees but not of costs: you supply the machine, any database and any model or embedding API the setup calls.

## Pricing models at a glance

| Option | Pricing model |
| --- | --- |
| CLAUDE.md and Claude Code auto memory | Included with Claude Code |
| ChatGPT memory, Copilot Memory | Included with the assistant plan where available |
| Basic Memory | Free open-source local version; paid per-seat Cloud with a free trial |
| Cognee | Free open source; cloud free tier; usage-based Standard; enterprise by contract |
| Mem0 | Apache-2.0 engine to self-host; platform free tier, usage-based billing past limits, custom plan |
| Letta | Apache-2.0 self-host; free tier; flat Pro and per-seat Teams plans; usage-based API; enterprise |
| Zep | Free credit allowance; credit-based monthly plans; enterprise. Graphiti is free open source |
| Supermemory | Free, Pro, Max and Scale tiers with monthly credits; usage-based metering; enterprise |
| Pieces | Paid per-user plans with a 7-day trial; Enterprise per user for teams |
| Central Brain | Pricing: Solo $12, Pair $20 (2 licenses) and Power Pack $35 (4 licenses) per month, 15% off with annual billing; Team and Enterprise are custom. 14-day free trial. No credit card required. |

## The cheapest way to give Claude and ChatGPT persistent memory

For one person using one assistant, the free options are usually enough. Paying makes sense when the time spent keeping several copies in sync, or searching documents by hand, costs more than the subscription.

1. Free, no setup: keep a one-page Markdown project brief and decision log. Load it into a Claude project or CLAUDE.md, and paste or attach it in ChatGPT.
2. Free, built in: use ChatGPT memory for personal preferences and Claude Code auto memory for repository notes. They do not share memory with each other.
3. Free, self-hosted: run an open-source MCP memory server such as Basic Memory locally and connect each client that supports MCP. Check your ChatGPT plan and workspace settings for MCP support.
4. Paid: a hosted service or desktop app when you want less maintenance, shared team access or document indexing.

## Local AI document search for a small team

For document search, cost follows the same split. Open-source tools are free to run but need someone to install and maintain them; hosted services usually charge per seat or by usage; desktop apps license per user or per computer. Count licenses per person or per computer, any model or embedding API charges, and the time to set up and maintain.

Central Brain licenses one computer per license, so Pair covers two and Power Pack four; Team and Enterprise are custom, and those plans can get a build with no online license check. It prepares PDF, DOCX, TXT, Markdown, CSV and XLSX locally with a bundled embedding model, so the default workflow has no embedding API cost. The connected AI client still has its own plan cost.

## Common questions

### Is there a free AI memory app?

Yes. CLAUDE.md files and built-in assistant memory are included, and the local Basic Memory, Cognee, Letta and Mem0 engine are open source. Self-hosting still needs a machine and possibly model API keys.

### How much does Central Brain cost?

Solo $12 per month for one license, Pair $20 for two, Power Pack $35 for four, 15% off annual billing, Team and Enterprise custom. 14-day free trial; no credit card required.

### Why are competitor prices not listed?

Prices change often and several are usage-based. This page links each official pricing page instead.

## Related answers

- [Best memory tools for AI coding assistants in 2026](https://neuroaigent.ai/central-brain-answers/best-memory-tools-ai-coding-assistants-2026/): Mem0, Zep, Letta, Cognee, Basic Memory, Supermemory, Pieces, Central Brain and built-in memory compared by what each is best at for coding work.
- [AI memory for small teams](https://neuroaigent.ai/central-brain-answers/ai-memory-small-teams/): How a small team can share project memory across several AI assistants, the main options, and the Northstar demonstration, computer licenses and project access.
- [Local RAG desktop app](https://neuroaigent.ai/central-brain-answers/local-rag-desktop-app/): How local AI memory works on Windows and Apple silicon Mac, the main options, and a recorded Claude and ChatGPT project-fact demonstration with its limits.
- [One memory for ChatGPT, Claude and Copilot](https://neuroaigent.ai/central-brain-answers/one-memory-chatgpt-claude-copilot/): Use Central Brain as one local project memory for supported GPT Desktop, Claude and GitHub Copilot clients. Set up and verify cross-client recall.

## Next steps

- [Review Central Brain plans](https://neuroaigent.ai/central-brain/pricing/): 14-day free trial, no credit card required.

## Sources and review notes

- [Central Brain pricing](https://neuroaigent.ai/central-brain/pricing/)
- [Basic Memory pricing](https://basicmemory.com/pricing)
- [Cognee pricing](https://www.cognee.ai/pricing)
- [Mem0 pricing](https://mem0.ai/pricing)
- [Letta pricing](https://docs.letta.com/letta-code/pricing)
- [Zep pricing](https://www.getzep.com/pricing)
- [Supermemory pricing](https://supermemory.ai/pricing)
- [Pieces pricing](https://pieces.app/pricing)
- [Graphiti repository](https://github.com/getzep/graphiti)
- [Claude Code: how Claude remembers your project](https://code.claude.com/docs/en/memory)
- [MITechNews: NeuroAIgent builds a Central Brain (September 22, 2026)](https://mitechnews.com/artificial-intelligence/neuroaigent-builds-a-central-brain-to-give-businesses-control-of-their-ai-knowledge/) — Press coverage, not independent testing.

## Explore the complete Central Brain workflow

Bring local file preparation, source-traceable search and readable project memory together. Explore [Central Brain features](https://neuroaigent.ai/central-brain/), follow the setup guide and choose a plan for your project.