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Castaly vs Runway

Features, pricing, ratings, and pros and cons, side by side.

Verdict

Castaly and Runway are both Image & Visual AI tools. Runway scores higher in FinderAtlas's editorial review (8.4 vs 7.7 out of 10). Only Runway has a free plan or trial. Only Runway is available on iOS and Android.

Best overall

Runway

  • Filmmakers
  • Video creators
  • Marketers and ad teams
  • Designers

Choose Castaly if

  • You want a tool built for comparing several AI video and image models with public per-specification prices and paying only for what is generated.
  • Many video and image models from several makers in one studio.
  • Public price per specification, shown before generating.

Choose Runway if

  • You want a tool built for Text-to-video and image-to-video generation.
  • Combines video, image and audio generation and editing in one workspace.
  • Offers Runway's own Gen-4.5 plus third-party models such as Seedance 2.0.
Best value
Runway
Best for beginners
Castaly
Best for business
Castaly

Features

17 features compared.

  • Multi-model video generation
    Castaly
    Available
    Runway
    Not available
  • Image generation
    Castaly
    Available
    Runway
    Not available
  • Public per-spec pricing
    Castaly
    Available
    Runway
    Not available
  • Pay per generation
    Castaly
    Available
    Runway
    Not available
  • Reference inputs
    Castaly
    Available
    Runway
    Not available
  • Community remix
    Castaly
    Available
    Runway
    Not available
  • API access
    Castaly
    Available
    Runway
    Not available
  • Creation records
    Castaly
    Available
    Runway
    Not available
  • Gen-4.5 video model
    Castaly
    Not available
    Runway
    Available
  • Creative Agent
    Castaly
    Not available
    Runway
    Available
  • Multiple models
    Castaly
    Not available
    Runway
    Available
  • Characters
    Castaly
    Not available
    Runway
    Available
  • Aleph and Act-Two
    Castaly
    Not available
    Runway
    Available
  • Audio tools
    Castaly
    Not available
    Runway
    Available
  • Workflows and Recipes
    Castaly
    Not available
    Runway
    Available
  • Runway Dev API
    Castaly
    Not available
    Runway
    Available
  • Runway MCP
    Castaly
    Not available
    Runway
    Available

Pricing

Plans as listed by each vendor. Check their sites for current prices.

  • Pricing model
    Castaly
    Paid
    Runway
    Freemium
  • Free plan
    Castaly
    No
    Runway
    Yes
  • Starting price
    Castaly
    Usage-based
    Runway
    $0
  • Plans
    Castaly
    2 plans
    Runway
    4 plans

Castaly plans

  • Pay-as-you-go

    Usage-based/usage-based

    Top up a shared USD wallet and pay per image, per second of video or per task.

    • No subscription
    • No minimum
    • Balance does not expire
    • Same wallet for Studio and API

  • Enterprise

    Custom/custom

    Volume pricing, higher limits, priority support and custom onboarding.

    • Volume pricing
    • Higher limits
    • Priority support

Runway plans

  • Free

    $0

    125 one-time credits that do not expire

    • A selection of generative models
    • 5GB storage

  • Standard

    $15/month

    625 credits per month; $12 per month billed annually

    • All video and image models
    • Creative Agent
    • 5 parallel generations
    • Music and voice and sound effects
    • Up to 3 projects
    • No watermarks
    • 4K upscaling
    • 20GB storage

  • Pro

    Most popular

    $35/month

    2,250 credits per month; $28 per month billed annually

    • Everything in Standard
    • 15 parallel generations
    • Up to 5 projects
    • 1 Brand Kit
    • 1 custom voice clone
    • Top-up credits
    • Runway MCP
    • Unlimited 4K video upscaling
    • 100GB storage

  • Max

    $95/month

    9,500 credits per month; $76 per month billed annually

    • Everything in Pro
    • Early access to new models
    • 20 parallel generations
    • Up to 10 projects
    • Up to 3 Brand Kits
    • Up to 3 custom voice clones
    • HDR and ProRes and image sequence outputs
    • 500GB storage

Our ratings

Scored out of 10 by the Finder Atlas editorial team. Last reviewed October 2026.

Castaly
7.7overall
Runway
8.4overall

Castaly leads in 1 category and Runway in 0.

  • Model Breadth

    Castaly
    8.3
    Runway
    Not rated

  • Pricing Clarity

    Castaly leads by 0.8
    Castaly
    8.0
    Runway
    7.2

  • Ease of Use

    Castaly
    7.5
    Runway
    Not rated

  • API Access

    Castaly
    7.8
    Runway
    Not rated

  • Transparency

    Castaly
    6.8
    Runway
    Not rated

  • Video Quality

    Castaly
    Not rated
    Runway
    9.0

  • Camera & Motion Control

    Castaly
    Not rated
    Runway
    8.8

  • Model Variety

    Castaly
    Not rated
    Runway
    8.5

  • Editing Tools

    Castaly
    Not rated
    Runway
    8.6

Scores weigh documented features, plan value, platform coverage, integrations and user feedback. A missing score means we have not rated that area yet.

Pros and cons

Castaly

Pros

  • Many video and image models from several makers in one studio
  • Public price per specification, shown before generating
  • No subscription or minimum, and the wallet balance does not expire
  • Same account and wallet work for the studio and the API
  • Operator is named in the footer and Modelflare terms

Cons

  • Reseller of third-party models, so availability and pricing depend on upstream providers
  • No free tier or free credits described
  • Some models are priced per million tokens, which is harder to estimate than per second
  • Web only, with no mobile app
  • Castaly's own legal pages return 404; terms are on the Modelflare site

Runway

Pros

  • Combines video, image and audio generation and editing in one workspace
  • Offers Runway's own Gen-4.5 plus third-party models such as Seedance 2.0
  • Creative Agent builds videos from a conversation
  • Runway Dev API with Node and Python SDKs
  • Free plan with 125 credits that do not expire
  • Native iOS and Android apps

Cons

  • Credit-based pricing: a 5-second Gen-4.5 clip costs 60 credits, so the 625 credits on Standard cover about 10 such clips
  • Standard and Pro credits do not roll over at the end of the month
  • Some App Store reviewers complain about the cost of failed or unusable generations
  • 4K upscaling is unlimited only on Pro and Max

Platforms

  • Web
    Castaly
    Supported
    Runway
    Supported
  • Windows
    Castaly
    Not supported
    Runway
    Not supported
  • macOS
    Castaly
    Not supported
    Runway
    Not supported
  • iOS
    Castaly
    Not supported
    Runway
    Supported
  • Android
    Castaly
    Not supported
    Runway
    Supported
  • API
    Castaly
    Supported
    Runway
    Supported
  • Browser Extension
    Castaly
    Not supported
    Runway
    Not supported

Integrations

Castaly

No integrations listed.

Runway

5 integrations
  • Runway MCP
  • ChatGPT plugin
  • Meta Ads
  • Google Ads
  • TikTok Ads

Company

  • Company
    Castaly
    Havenbyte LLC
    Runway
    Runway AI, Inc.
  • Founded
    Castaly
    Not listed
    Runway
    2018
  • Headquarters
    Castaly
    Not listed
    Runway
    New York, NY
  • Listing
    Castaly
    Claimed
    Runway
    Claimed

Frequently asked questions

Is Castaly better than Runway?

It depends on your workflow. Castaly is built for comparing several AI video and image models with public per-specification prices and paying only for what is generated. Runway is built for Text-to-video and image-to-video generation.

What are the key feature differences between Castaly and Runway?

Castaly: Pay-per-generation AI video and image studio with Seedance, Kling, Wan and GPT Image. Runway: AI video, image and audio creation suite with Gen-4.5, agents and an API.

Does Castaly or Runway have a free plan?

Runway has a free plan or trial; Castaly is paid only.

Which is cheaper, Castaly or Runway?

Castaly starts at Usage-based and Runway starts at $0. See the pricing table above for what each tier includes.