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AI · head to head

Vellum vs Black Forest Labs

Vellum logo

Vellum

AI

Personalized AI assistant with persistent memory and autonomous action-taking

From
Free
Rated
-
Full reviewWebsite
Black Forest Labs logo

Black Forest Labs

AI

Frontier AI lab behind the FLUX family of image, video, and audio generation models

From
$0.17/month
Rated
-
Full reviewWebsite

The short version

  • Only Vellum has a free tier, so it costs nothing to try first.
  • Each has a real cost: Vellum pricing varies significantly by computational tier, making budget planning difficult; Black Forest Labs open weights licensing tiers (Builder, Platform, Professional) do not list public prices, requiring sales contact for most volumes.
  • They diverge on capability: Vellum covers Persistent AI identity, Black Forest Labs covers FLUX 3 image generation.

Where they differ

Only the attributes on which Vellum and Black Forest Labs actually diverge.

Attributes where Vellum and Black Forest Labs differ
AttributeVellumBlack Forest Labs
Starting priceFree$0.17/month
Pricing modelFreemium with paid plans and pay-as-you-go creditsusage-based
Free tierYesNo
PlatformsWeb, macOS, iOS, Slack, Telegram, Terminalweb, api

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 Vellum

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

Only in Black Forest Labs

  • FLUX 3 image generation
  • Video generation
  • Synchronized audio generation
  • Open weights
  • Action-prediction
  • Fine-tuning and LoRA rights
  • Pricing calculator

What people use each for

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

Vellum

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

Black Forest Labs

  • Generating high-fidelity images via API for production appsnot Vellum
  • Self-hosting open-weight FLUX models on private infrastructurenot Vellum
  • Producing short branded video clips with synchronized audionot Vellum
  • Robotics research using action-prediction modelsnot Vellum

Where each one falls short

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

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

Black Forest Labs

  • Open weights licensing tiers (Builder, Platform, Professional) do not list public prices, requiring sales contact for most volumes.
  • Video generation pricing per second can become costly for longer or higher-resolution outputs compared to subscription-based competitors.
  • No consumer subscription plan; pricing is oriented toward developers and enterprises rather than casual creators.

Pricing, plan by plan

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

Black Forest Labs

$0.17/month
  • API (video)$0.17/month
    • $0.17 per second of generated video
  • Builder$undefined/mo
    • FLUX.2 [klein] models
    • 10K images/month
    • 1 domain, 10 licensed users
  • Platform$undefined/mo
    • FLUX.2 [klein] 9B + FLUX.2 [dev]
    • 100K images/month
    • 1 domain, 10 licensed users
  • Professional$undefined/mo
    • FLUX.2 [dev] open weights license
    • 100K images/month
    • Up to 3 domains, 10 licensed users

Which should you pick?

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

Choose Black Forest Labs if

  • You need flux 3 image generation.
  • You work on web, api.
  • You also want video generation.
Black Forest Labs review

Questions people ask

Is Vellum or Black Forest Labs better?
Neither clearly leads. Vellum starts at Free and Black Forest Labs at $0.17/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Vellum or Black Forest Labs?
Vellum has a free tier; the other does not. Paid plans start at Free for Vellum and $0.17/month for Black Forest Labs.
Does Vellum or Black Forest Labs run on more platforms?
Vellum runs on Web, macOS, iOS, Slack, Telegram, Terminal. Black Forest Labs runs on web, api.
Can I use Vellum for free?
Yes. Vellum has a free tier, so you can try it without paying. Black Forest Labs starts at $0.17/month.
What is Vellum best used for?
Vellum is most often used for personal productivity automation across email and calendar, crm updates and pipeline management, expense report generation and management, document drafting and content creation. Of those, personal productivity automation across email and calendar and crm updates and pipeline management are not what Black Forest Labs is typically brought in for.
What can Vellum do that Black Forest Labs cannot?
Vellum covers Persistent AI identity, Long-term memory, Email automation, Calendar management. Black Forest Labs covers FLUX 3 image generation, Video generation, Synchronized audio generation, Open weights.

Answered from the vendors’ own pages

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
Black Forest Labs: How much does Black Forest Labs' API cost?

The API is pay-as-you-go with no subscription required; video generation costs $0.17 per second, so a 5-second HD clip costs about $0.85.

Source
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
Black Forest Labs: Is there a free plan?

No free tier is offered; the pricing page lists only pay-as-you-go API usage and paid open-weights licensing tiers starting with Builder.

Source
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
Black Forest Labs: What do the open-weights licensing tiers include?

Builder includes FLUX.2 [klein] models with 10K images/month for one domain; Platform and Professional raise the cap to 100K images/month and add FLUX.2 [dev] access and fine-tuning rights.

Source
Black Forest Labs: Can I self-host FLUX models?

Yes, open weights licenses let teams download and self-host FLUX.2 [klein] and FLUX.2 [dev] models on their own infrastructure under the Builder, Platform, and Professional tiers.

Source
Black Forest Labs: How do I get enterprise or high-volume pricing?

Enterprise plans covering custom volume, all model releases, and SLA guarantees are not published and require contacting Black Forest Labs' sales team directly.

Source
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