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Runway vs System One API

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

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System One API

Hosted API returning structured choices, scores and probabilities for AI agent decisions

Free trial
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Verdict

Runway is listed under Image & Visual AI and System One API under Developer Tools. Runway scores higher in FinderAtlas's editorial review (8.4 vs 7.3 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 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.

Choose System One API if

  • You want a tool built for routing and triage of requests.
  • Pay-as-you-go credits with no subscription and no expiry.
  • Failed calls are not charged.
Best value
Runway
Best for beginners
System One API
Best for business
System One API

Features

17 features compared.

  • Gen-4.5 video model
    Runway
    Available
    System One API
    Not available
  • Creative Agent
    Runway
    Available
    System One API
    Not available
  • Multiple models
    Runway
    Available
    System One API
    Not available
  • Characters
    Runway
    Available
    System One API
    Not available
  • Aleph and Act-Two
    Runway
    Available
    System One API
    Not available
  • Audio tools
    Runway
    Available
    System One API
    Not available
  • Workflows and Recipes
    Runway
    Available
    System One API
    Not available
  • Runway Dev API
    Runway
    Available
    System One API
    Not available
  • Runway MCP
    Runway
    Available
    System One API
    Not available
  • Choice
    Runway
    Not available
    System One API
    Available
  • Score
    Runway
    Not available
    System One API
    Available
  • Noul
    Runway
    Not available
    System One API
    Available
  • Multi-question requests
    Runway
    Not available
    System One API
    Available
  • Model catalogue
    Runway
    Not available
    System One API
    Available
  • TypeScript SDK
    Runway
    Not available
    System One API
    Available
  • Idempotency and error handling
    Runway
    Not available
    System One API
    Available
  • Credit billing
    Runway
    Not available
    System One API
    Available

Pricing

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

  • Pricing model
    Runway
    Freemium
    System One API
    Free trial
  • Free plan
    Runway
    Yes
    System One API
    No
  • Starting price
    Runway
    $0
    System One API
    $5.99
  • Plans
    Runway
    4 plans
    System One API
    3 plans

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

System One API plans

  • Starter

    $5.99/one-time

    5,000 prepaid decision credits.

    • 5,000 credits
    • Choice and Score and Noul
    • SDK and playground access
    • Failed inference refunded

  • Builder

    Most popular

    $19.99/one-time

    20,000 prepaid decision credits.

    • 20,000 credits
    • Choice and Score and Noul
    • SDK and playground access
    • Failed inference refunded

  • Scale

    $99.99/one-time

    120,000 prepaid decision credits.

    • 120,000 credits
    • Choice and Score and Noul
    • SDK and playground access
    • Failed inference refunded

Our ratings

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

Runway
8.4overall
System One API
7.3overall

  • Video Quality

    Runway
    9.0
    System One API
    Not rated

  • Camera & Motion Control

    Runway
    8.8
    System One API
    Not rated

  • Model Variety

    Runway
    8.5
    System One API
    Not rated

  • Editing Tools

    Runway
    8.6
    System One API
    Not rated

  • Pricing Clarity

    Runway
    7.2
    System One API
    Not rated

  • API Design

    Runway
    Not rated
    System One API
    8.0

  • Documentation Clarity

    Runway
    Not rated
    System One API
    7.8

  • Pricing Transparency

    Runway
    Not rated
    System One API
    8.5

  • Maturity & Reliability

    Runway
    Not rated
    System One API
    5.8

  • Use Case Breadth

    Runway
    Not rated
    System One API
    6.2

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

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

System One API

Pros

  • Pay-as-you-go credits with no subscription and no expiry
  • Failed calls are not charged
  • Public model catalogue with prices and limits
  • Structured outputs with per-option probabilities
  • Open-source MIT-licensed TypeScript SDK

Cons

  • Early-stage project: the SDK repository has very few GitHub stars and the company is not identified on the site
  • No published latency, uptime or accuracy guarantees
  • Limited to classification, scoring and yes/no style decisions rather than generation
  • Hosted models are the vendor's own and independent benchmarks are not provided

Platforms

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

Integrations

Runway

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

System One API

No integrations listed.

Company

  • Company
    Runway
    Runway AI, Inc.
    System One API
    Not listed
  • Founded
    Runway
    2018
    System One API
    Not listed
  • Headquarters
    Runway
    New York, NY
    System One API
    Not listed
  • Listing
    Runway
    Claimed
    System One API
    Not claimed

Frequently asked questions

Is Runway better than System One API?

It depends on your workflow. Runway is built for Text-to-video and image-to-video generation. System One API is built for routing and triage of requests.

What are the key feature differences between Runway and System One API?

Runway: AI video, image and audio creation suite with Gen-4.5, agents and an API. System One API: Hosted API returning structured choices, scores and probabilities for AI agent decisions.

Does Runway or System One API have a free plan?

Runway has a free plan or trial; System One API is paid only.

Which is cheaper, Runway or System One API?

Runway starts at $0 and System One API starts at $5.99. See the pricing table above for what each tier includes.