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AI · head to head

Black Forest Labs vs Weka

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
Free plan
No
Full reviewWebsite
Weka logo

Weka

Machine Learning

Collection of machine learning algorithms

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only Weka has a free tier, so it costs nothing to try first.
  • Each has a real cost: Black Forest Labs open weights licensing tiers (Builder, Platform, Professional) do not list public prices, requiring sales contact for most volumes.; Weka the package management system needs an internet connection to download and install packages, so an air-gapped install gets only the core distribution
  • They diverge on capability: Black Forest Labs covers FLUX 3 image generation, Weka covers Classification.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where Black Forest Labs and Weka differ
AttributeBlack Forest LabsWeka
Starting price$0.17/monthFree
Pricing modelusage-basedopen-source
Free tierNoYes
Platformsweb, apiLinux, Mac, Windows
CategoryAIMachine Learning
FoundedUnknown1993

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

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 Black Forest Labs

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

Only in Weka

  • Classification
  • Regression
  • Clustering
  • Association rules
  • Feature selection
  • Java
  • R
  • Python

What people use each for

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

Black Forest Labs

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

Weka

  • Teaching and exploring classic machine learning algorithms through a GUInot Black Forest Labs
  • Running data mining experiments and preprocessing without writing codenot Black Forest Labs

Where each one falls short

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

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.

Weka

  • The package management system needs an internet connection to download and install packages, so an air-gapped install gets only the core distribution
  • Weka is split into a stable 3.8 branch that receives only bug fixes and compatibility-safe upgrades and a 3.9 development branch that may receive features that break compatibility
  • Weka requires a 64-bit Java VM; the bundled installers ship Bellsoft OpenJDK 25 per platform and architecture

Pricing, plan by plan

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

Weka

Free
  • Open SourceFree
    • All ML algorithms
    • GUI and CLI
    • Java API

Which should you pick?

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

Choose Weka if

  • You need classification.
  • You want to start without paying.
  • You work on Linux, Mac, Windows.
  • You also want regression.
Weka review

Questions people ask

Is Black Forest Labs or Weka better?
Neither clearly leads. Black Forest Labs starts at $0.17/month and Weka at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Black Forest Labs or Weka?
Weka has a free tier; the other does not. Paid plans start at $0.17/month for Black Forest Labs and Free for Weka.
Does Black Forest Labs or Weka run on more platforms?
Black Forest Labs runs on web, api. Weka runs on Linux, Mac, Windows.
Can I use Weka for free?
Yes. Weka has a free tier, so you can try it without paying. Black Forest Labs starts at $0.17/month.
What is Black Forest Labs best used for?
Black Forest Labs is most often used for generating high-fidelity images via api for production apps, self-hosting open-weight flux models on private infrastructure, producing short branded video clips with synchronized audio, robotics research using action-prediction models. Of those, generating high-fidelity images via api for production apps and self-hosting open-weight flux models on private infrastructure are not what Weka is typically brought in for.
What can Black Forest Labs do that Weka cannot?
Black Forest Labs covers FLUX 3 image generation, Video generation, Synchronized audio generation, Open weights. Weka covers Classification, Regression, Clustering, Association rules.

Answered from the vendors’ own pages

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
Weka: What is the cost of Weka software?

Weka is provided at no cost as open-source software released under the GNU General Public License, making it freely available for download and use.

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
Weka: Are there commercial licensing options available?

Yes, the project offers information about commercial licenses for organizations requiring non-GPL terms, which can be found in their commercial applications documentation.

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
Weka: What support resources are available to users?

Multiple support avenues exist including comprehensive documentation, frequently asked questions, dedicated help resources, and access to courses for learning the platform.

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
Weka: Is source code access provided?

Yes, developers have full access to source code through the Git repository, along with development documentation and code credits for contributors.

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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