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Comparison

Custom AI system vs ChatGPT subscription

The most common question before an AI project: 'isn't ChatGPT enough?' Short answer — for your team's daily work, yes; for a customer-facing, data-bound product, no. Here is the honest breakdown.

When a ChatGPT (or Claude) subscription is enough

  • Individual team productivity: writing, coding, ideation, summarising
  • You don't need your private data — the model's general knowledge is enough
  • No integration with other systems (CRM, ERP, e-commerce)
  • No customer-facing surface — internal use only
  • Cost: €20–€30/user/month, starts instantly

When you need a custom AI system

  • Customer-facing feature: a chatbot on your site, support automation, AI inside your product
  • Answers must come from YOUR data (documents, CRM, product catalogue) — this is RAG
  • Integration required: the AI reads/writes other systems (agent, workflow)
  • Compliance: GDPR, DORA, MDR — you need audit trails, PII control, EU hosting
  • Brand voice, guaranteed format, measured accuracy — backed by an eval suite

The three myths

'ChatGPT knows our company'

It doesn't. The public model knows nothing about your internal documents, prices, or customers. Only a RAG system connects the model to your private data — with citations, kept current.

'We'll just paste the document into the prompt'

Works for a few pages. With thousands of documents it won't fit the context window, it's expensive, and there's no source tracking. That's when you need retrieval (RAG) and evaluation.

'The subscription is cheaper'

For individual use, yes. But you can't serve a customer-facing product through 30 people sharing a ChatGPT account — you need an API, an application layer, controls. They are different things.

The pragmatic path

Start with a ChatGPT/Claude Team subscription for your team's daily work — it pays for itself immediately. Build a custom system only when there's a customer-facing, data-bound, or integrated use-case. The two don't compete: most companies need both, for different jobs.

Custom AI, or is a subscription enough?

A 30-minute call to scope the use-case — if ChatGPT is enough, we'll say so.

Book a discovery call
Custom AI system vs ChatGPT subscription
 Custom AI systemChatGPT subscription
Answers from your private data (RAG)
Integration with CRM / ERP / e-commerce
Customer-facing surface (chatbot, product)
Audit trail and GDPR / DORA complianceLimited
Guaranteed accuracy (eval suite)
Individual team productivityOverkill for it
Instant start4–8 weeksSame day
Cost€15k+ to build€25–€30/user/mo

Projects by us

AI projects we built

AI systems built by us — same stack we ship to clients.

All projects
aiwebmobile

AIHealthIQ

AI health coach powered by wearable data

Ingests wearable data (heart rate, sleep, steps, oxygen) from watches and fitness bands, correlates it with AI, and surfaces concrete lifestyle, medication, or 'see a doctor' recommendations. Web and mobile clients on the same API.

Stack

ExpressReact-ReduxSQLiteOpenRouter
aiweb

3D AI Property

AI that turns flat specs into a walk-through 3D interior

Type a flat's specs and the AI generates its 3D floor plan + interior, which you can fine-tune by hand and walk through in FPV or drone view. Swap between ten interior styles in one click — no interior designer needed.

Stack

Next.jsTypeScriptOpenRouterSQLite
aiweb

The Truth AI News

Fact-checked news aggregator with AI bias scoring

News aggregator that pulls from multiple sources, fact-checks with AI, summarises the piece, and scores how biased / opinionated it is plus what the article is trying to achieve. Editorial transparency is the whole point.

Stack

Next.jsTypeScriptPrismaPostgreSQLOpenRouter
aiblockchain

Multi-Agent Crypto Trading

Four AI agents vote on every crypto trade

Four specialised AI agents — data, sentiment, quant model, verifier — vote together on trades across the top 50 crypto tokens, combining price with news and social signal. Runs 24/7, web UI + API, open-source.

Stack

PythonpandasNumPyscikit-learnLangChainOllamaSQLite

Start your project

30-minute discovery call, fixed-price quote, 4-week roadmap. The next project could be yours.

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Real reviews

What clients say about us

Quick feedback from people who worked with our team.

5.0

Overall

Based on real reviews

Faster work + consistent output

Everything got faster and more organized.

I stopped guessing. Now I follow clear steps and get solid results every time.

Júlio Reyes Castro

Júlio Reyes Castro

Print / Design BusinessMexico

Better output + less time

AI finally feels useful day to day.

Now I know what to ask and how to get clean outputs for posts, emails, and offers.

Kristóf

Kristóf

Short-Form EditorBudapest

Cleaner build + faster execution

The team helped us improve the system fast.

They quickly identified what to automate, what to tighten up, and how to structure the system better.

Joran

Joran

Founder / Product BuilderInternational

More engagement + stronger presence

The promo came out clean and professional.

It felt like a real campaign, and the engagement was noticeably better.

Jerzso

Jerzso

MusicianHungary

New reviews get added regularly.

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