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Machine Learning · head to head

Weights & Biases vs Whimsical

Weights & Biases logo

Weights & Biases

Machine Learning

Developer tools for machine learning

From
Free
Rated
-
Full reviewWebsite
Whimsical logo

Whimsical

Technology

Where great ideas take shape

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Weights & Biases pricing can be prohibitive for large teams without enterprise discounts; Whimsical the free plan is capped at 3 team boards, 3 teams and 10 guest seats
  • They diverge on capability: Weights & Biases covers Experiment tracking, Whimsical covers Flowcharts.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Weights & Biases and Whimsical actually diverge.

Attributes where Weights & Biases and Whimsical differ
AttributeWeights & BiasesWhimsical
Pricing modelUnknownsubscription
PlatformsWeb, Python SDK, REST APIWeb
CategoryMachine LearningTechnology

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), founded (2017).

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 Weights & Biases

  • Experiment tracking
  • Dataset versioning
  • Model registry
  • Hyperparameter sweeps
  • Collaborative dashboards
  • PyTorch
  • TensorFlow
  • Keras

Only in Whimsical

  • Flowcharts
  • Wireframes
  • Mind maps
  • Sticky notes
  • Docs
  • Real-time collaboration
  • Templates
  • Keyboard shortcuts

What people use each for

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

Weights & Biases

  • Machine learningnot Whimsical
  • Data analysisnot Whimsical
  • Model trainingnot Whimsical
  • Predictive analyticsnot Whimsical

Whimsical

  • Product planningnot Weights & Biases
  • UI/UX designnot Weights & Biases
  • Brainstormingnot Weights & Biases
  • Process documentationnot Weights & Biases
  • Project visualizationnot Weights & Biases

Where each one falls short

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

Weights & Biases

  • Pricing can be prohibitive for large teams without enterprise discounts
  • Limited integrations compared to some competitors
  • Dashboard customization options limited on lower plans
  • Requires some setup and configuration knowledge

Whimsical

  • The free plan is capped at 3 team boards, 3 teams and 10 guest seats
  • File uploads are limited to 5MB per file and 1GB in total on the free plan
  • Version history on the free plan goes back 7 days
  • Voting, the timer, private teams, the GitHub integration, password-protected files and watermark removal all need Pro at $10 per editor per month
  • SSO and SAML are Business tier only at $20 per editor per month

Pricing, plan by plan

Weights & Biases

Free
  • FreeFree
    • 5 model seats
    • 5 GB storage
    • 1 GB/month Weave ingestion
  • Pro$60/month
    • 10 seats
    • 100 GB storage
    • Private projects
  • Teams$179/month
    • Team collaboration
    • Advanced analytics
    • Dedicated support

Whimsical

Free
  • StarterFree
    • Up to 4 boards
    • Unlimited viewers
    • 7-day version history
  • Pro$10/month
    • Unlimited boards
    • Unlimited version history
    • Advanced permissions
  • Org$20/month
    • Everything in Pro
    • SSO
    • User management

Which should you pick?

Choose Weights & Biases if

  • You need experiment tracking.
  • You want to start without paying.
  • You work on Web, Python SDK, REST API.
  • You also want dataset versioning.
Weights & Biases review

Choose Whimsical if

  • You need flowcharts.
  • You want to start without paying.
  • You also want wireframes.
Whimsical review

Questions people ask

Is Weights & Biases or Whimsical better?
Neither clearly leads. Weights & Biases starts at Free and Whimsical at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Weights & Biases or Whimsical?
Weights & Biases starts at Free and Whimsical at Free.
Does Weights & Biases or Whimsical run on more platforms?
Weights & Biases runs on Web, Python SDK, REST API. Whimsical runs on Web.
Can I use Weights & Biases for free?
Both have a free tier, so you can try either at no cost before committing.
What is Weights & Biases best used for?
Weights & Biases is most often used for machine learning, data analysis, model training, predictive analytics. Of those, machine learning and data analysis are not what Whimsical is typically brought in for.
What can Weights & Biases do that Whimsical cannot?
Weights & Biases covers Experiment tracking, Dataset versioning, Model registry, Hyperparameter sweeps. Whimsical covers Flowcharts, Wireframes, Mind maps, Sticky notes.

Answered from the vendors’ own pages

Weights & Biases: Does Weights & Biases have a free plan?

Yes. The Free tier includes 5 model seats, 5 GB storage, and 1 GB/month Weave ingestion. Academic users get unlimited tracked hours, 200 GB storage, and 100 seats at no cost.

Source
Whimsical: What are Whimsical's pricing tiers?

Whimsical offers three plans: Free at 0 dollars per month per editor, Pro at 10 dollars per month per editor, and Business at 20 dollars per month per editor.

Source
Weights & Biases: What are the paid plans for Weights & Biases?

Pro starts at $60/month with 10 seats and 100 GB storage. Team plans start at $179/month. Enterprise pricing is custom.

Source
Whimsical: What is included in the Free plan?

The Free plan allows creation of up to 50 board objects and 50 doc blocks per month, includes watermarked exports, and provides 7-day version history. Storage is limited to 1GB.

Source
Weights & Biases: What machine learning features does W&B provide?

Weights & Biases captures hyperparameters, metrics, and model outputs automatically. Features include experiment tracking, interactive Reports for sharing findings, Artifacts for managing datasets and models, advanced hyperparameter sweeps, and model deployment tools.

Source
Whimsical: What features unlock in the Pro plan?

The Pro plan removes the object creation limits, provides unlimited board objects and doc blocks, removes watermarks from exports, extends version history to 90 days, and offers 100GB of storage.

Source
Whimsical: What security and team features come with Business?

The Business plan adds private teams, SAML single sign-on, SCIM and advanced security controls, unlimited version history, priority support, and a dedicated success manager. Storage starts at 2TB.

Source
Whimsical: Do discounts apply for annual billing?

Yes, annual billing offers a 17 percent discount compared to monthly rates. Additionally, nonprofits receive a 20 percent discount and students and teachers get full access.

Source
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