PurpleBrain vs Zylon (2026): Pricing, Features & Which to Choose

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

Lower starting price
Not comparable
Not comparable: PurpleBrain does not list a price
Free plan
Tie
Neither has one
Higher rating
Zylon
4.0 against 4.1
Same job?
Yes
Both are AI Infrastructure & Agent Tooling tools

Side by side

Compared on	PurpleBrain	Zylon
Our rating	4.0	4.1Better
Starts at	Not listed	Not listed
Free plan	No	No
Category	AI Infrastructure & Agent Tooling	AI Infrastructure & Agent Tooling
Plans	See pricing	See pricing
Key features	Synthesizes knowledge from PDFs, Excel, CAD, databases, tickets and wikis Cited, source-traceable answers Specialized agents: sales engineering, diligence, legal, patent prosecution Human review queue before information enters the knowledge base Cloud, on-premises or air-gapped deployment	Deployment on-premise, air-gapped or inside a customer-controlled cloud VPC Full data control with no dependency on external model providers Governance, access control and compliance tooling included Complete platform covering deployment through to end-user applications Built by the team behind the PrivateGPT open-source project
Pros	Explicitly refuses to guess when evidence is insufficient, rather than always answering Cited, source-traceable answers support real accountability Air-gapped deployment option for genuinely restricted data environments	Architectural rather than contractual data control Air-gapped support suits defence, government and healthcare Credible open-source lineage in private AI
Cons	Review-queue safeguard depends on the review actually being performed rigorously No self-serve pricing - requires booking a working session Specialized agents (legal, patent) still need domain-expert oversight, not blind trust	Self-hosting shifts infrastructure and maintenance cost onto the customer Enterprise pricing requires a sales conversation
Company	PurpleBrain	PriBAI Technology Spain S.L., founded 2023

Prices come from each vendor's pricing page, last checked 20260824. Check the vendor before you buy.

FAQ

Questions people ask

Is PurpleBrain better than Zylon?

In our reviews PurpleBrain scores 4.0 and Zylon scores 4.1. The better pick depends on the job. PurpleBrain: Synthesizes scattered company knowledge - PDFs, CAD, databases, tickets - into cited answers, and explicitly refuses to guess when the evidence isn't there. Zylon: Private AI infrastructure deployed on-premise, air-gapped or in your own cloud VPC.

Which is cheaper, PurpleBrain or Zylon?

PurpleBrain: see pricing. Zylon: see pricing.

Do PurpleBrain and Zylon have free plans?

Neither lists a free plan.

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