Is Avathon or Vellum better?

Neither clearly leads. Avathon starts at On request and Vellum at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Avathon or Vellum?

Vellum has a free tier; the other does not. Paid plans start at On request for Avathon and Free for Vellum.

Does Avathon or Vellum run on more platforms?

Avathon runs on Web, Cloud. Vellum runs on Web, macOS, iOS, Slack, Telegram, Terminal.

Can I use Vellum for free?

Yes. Vellum has a free tier, so you can try it without paying. Avathon starts at On request.

What is Avathon best used for?

Avathon is most often used for a wind fleet owner wanting underperforming turbines ranked by lost megawatt hours rather than by alarm count, a solar independent power producer detecting inverter and string underperformance that falls below the scada alarm threshold, a manufacturer with years of historian data and failure records who wants failure prediction models trained on their own history, a site using cameras to detect missing personal protective equipment or unauthorised entry into restricted zones. Of those, a wind fleet owner wanting underperforming turbines ranked by lost megawatt hours rather than by alarm count and a solar independent power producer detecting inverter and string underperformance that falls below the scada alarm threshold are not what Vellum is typically brought in for.

What can Avathon do that Vellum cannot?

Avathon covers Renewable Suite, Loss attribution, Predictive maintenance models, Computer vision. Vellum covers Persistent AI identity, Long-term memory, Email automation, Calendar management.

AI · head to head

Avathon vs Vellum

Avathon

Industrial AI for asset performance and renewables, formerly SparkCognition

From: On request
Rated: -

Full review Website

Vellum

Personalized AI assistant with persistent memory and autonomous action-taking

From: Free
Rated: -

Full review Website

The short version

Only Vellum has a free tier, so it costs nothing to try first.
Each has a real cost: Avathon the company rebranded from SparkCognition to Avathon and narrowed its focus after repeated reported layoff rounds, so reference checks and roadmap commitments made under the old name need reconfirming.; Vellum pricing varies significantly by computational tier, making budget planning difficult
They diverge on capability: Avathon covers Renewable Suite, Vellum covers Persistent AI identity.
Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Avathon and Vellum actually diverge.

Attributes where Avathon and Vellum differ
Attribute	Avathon	Vellum
Starting price	On request	Free
Pricing model	quote	Freemium with paid plans and pay-as-you-go credits
Free tier	No	Yes
Platforms	Web, Cloud	Web, macOS, iOS, Slack, Telegram, Terminal

Identical on both: user rating (Not yet rated), category (AI).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Avathon

Renewable Suite
Loss attribution
Predictive maintenance models
Computer vision
Digital twin models
Work order integration
Fleet benchmarking
Document intelligence

Only in Vellum

Persistent AI identity
Long-term memory
Email automation
Calendar management
Autonomous task execution
Multi-device synchronization
Custom plugins
Open-source deployment

What people use each for

The jobs each tool is most often brought in to do.

Avathon

A wind fleet owner wanting underperforming turbines ranked by lost megawatt hours rather than by alarm countnot Vellum
A solar independent power producer detecting inverter and string underperformance that falls below the SCADA alarm thresholdnot Vellum
A manufacturer with years of historian data and failure records who wants failure prediction models trained on their own historynot Vellum
A site using cameras to detect missing personal protective equipment or unauthorised entry into restricted zonesnot Vellum

Vellum

Personal productivity automation across email and calendarnot Avathon
CRM updates and pipeline managementnot Avathon
Expense report generation and managementnot Avathon
Document drafting and content creationnot Avathon
Meeting scheduling and calendar coordinationnot Avathon

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Avathon

The company rebranded from SparkCognition to Avathon and narrowed its focus after repeated reported layoff rounds, so reference checks and roadmap commitments made under the old name need reconfirming.
Headcount is in the low hundreds against a product portfolio spanning renewables, vision, predictive maintenance and document AI, which is thin coverage per product line for enterprise support expectations.
Model accuracy depends on having enough labelled historical failures, and sites with short data history or poor maintenance record-keeping get generic anomaly detection rather than useful failure prediction.
Nothing is published about pricing or asset-count thresholds, so there is no way to judge whether a small fleet is even a viable customer without entering a sales cycle.
It sits on top of your SCADA and CMMS rather than replacing them, so the integration and asset-hierarchy mapping work is a real project cost that the software subscription does not cover.

Vellum

Pricing varies significantly by computational tier, making budget planning difficult
Requires explicit permission for sensitive actions, limiting autonomy
Self-hosting option may intimidate non-technical users
Learning curve to develop customizations with plugins

Pricing, plan by plan

Avathon

On request

Avathon$undefined/year
- Annual subscription sized by asset count or installed megawatts for renewables
- Separate pricing for vision, predictive maintenance and document products
- Model development and data onboarding quoted as a professional services project

Vellum

Free

FreeFree
- Starter credits included
- Basic features
Mighty$30/month
- 1 vCPU, 2 GiB RAM
- 10 GB storage
- Included usage allowance
Super$100/month
- 2.5 vCPU, 5 GiB RAM
- 30 GB storage
- Assistant email and subdomain
Ultra$200/month
- 4 vCPU, 8 GiB RAM
- 60 GB storage
- Assistant email and subdomain

Which should you pick?

Choose Avathon if

You need renewable suite.
You work on Web, Cloud.
You also want loss attribution.

Avathon review

Choose Vellum if

You need persistent ai identity.
You want to start without paying.
You work on Web, macOS, iOS, Slack, Telegram, Terminal.
You also want long-term memory.

Vellum review

Questions people ask

Is Avathon or Vellum better?: Neither clearly leads. Avathon starts at On request and Vellum at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Avathon or Vellum?: Vellum has a free tier; the other does not. Paid plans start at On request for Avathon and Free for Vellum.
Does Avathon or Vellum run on more platforms?: Avathon runs on Web, Cloud. Vellum runs on Web, macOS, iOS, Slack, Telegram, Terminal.
Can I use Vellum for free?: Yes. Vellum has a free tier, so you can try it without paying. Avathon starts at On request.
What is Avathon best used for?: Avathon is most often used for a wind fleet owner wanting underperforming turbines ranked by lost megawatt hours rather than by alarm count, a solar independent power producer detecting inverter and string underperformance that falls below the scada alarm threshold, a manufacturer with years of historian data and failure records who wants failure prediction models trained on their own history, a site using cameras to detect missing personal protective equipment or unauthorised entry into restricted zones. Of those, a wind fleet owner wanting underperforming turbines ranked by lost megawatt hours rather than by alarm count and a solar independent power producer detecting inverter and string underperformance that falls below the scada alarm threshold are not what Vellum is typically brought in for.
What can Avathon do that Vellum cannot?: Avathon covers Renewable Suite, Loss attribution, Predictive maintenance models, Computer vision. Vellum covers Persistent AI identity, Long-term memory, Email automation, Calendar management.

Answered from the vendors’ own pages

Avathon: Is this the same company as SparkCognition?

Yes. SparkCognition rebranded to Avathon and refocused on industrial and government asset AI.

Vellum: How does Vellum protect my data privacy?

Vellum uses permission-based controls requiring explicit approval for sensitive actions. Data is encrypted and the option for self-hosting provides complete data control. Open-source deployment option allows hosting on your own infrastructure.

Source

Avathon: Which product is most mature?

The renewable energy suite for wind and solar underperformance, which has the longest production deployment history.

Vellum: Can I use Vellum for business team collaboration?

Vellum is primarily designed as a personal assistant with persistent identity. For team collaboration, platforms like Lindy offer better multi-user features with shared credit pools and Slack workspace integration.

Source

Avathon: Does it need my historian data in the cloud?

Generally yes for model training and ongoing scoring, which is a security review item for utility and defence customers.

Vellum: What does the free tier include?

Vellum offers free starter credits to begin using the platform. Beyond that, it operates on a pay-as-you-go credit model with paid tiers starting at $30/month for increased computational resources and bundled credits.

Source

Avathon: Can it work without historical failure records?

It will still do anomaly detection, but failure prediction models need labelled historical failures to be worth the deployment cost.

Avathon vs Vellum

Avathon

Vellum

The short version

Where they differ

What each one covers

Only in Avathon

Only in Vellum

What people use each for

Avathon

Vellum

Where each one falls short

Avathon

Vellum

Pricing, plan by plan

Avathon

Vellum

Which should you pick?

Choose Avathon if

Choose Vellum if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Avathon

More on Vellum

Keep looking

Other head to heads