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ElevenLabs vs System One API

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

ElevenLabs logo

ElevenLabs

Text-to-speech, voice cloning, dubbing and voice agents built on in-house audio models

Freemium
Visit websiteView details
System One API logo

System One API

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

Free trial
Visit websiteView details

Verdict

ElevenLabs is listed under Audio & Speech AI and System One API under Developer Tools. ElevenLabs scores higher in FinderAtlas's editorial review (9.1 vs 7.3 out of 10). Only ElevenLabs has a free plan or trial. Only ElevenLabs is available on iOS and Android.

Best overall

ElevenLabs

  • Content Creators
  • Video Producers
  • Podcasters
  • Audiobook Publishers

Choose ElevenLabs if

  • You want a tool built for Voiceovers, audiobook narration, video dubbing, voice cloning, and real-time voice agents.
  • Broad product range in one account: text-to-speech, speech-to-text, cloning, dubbing, sound effects, music and agents.
  • Language coverage of 90+ languages on Eleven v4 and Scribe v2.

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
ElevenLabs
Best for beginners
ElevenLabs
Best for business
ElevenLabs

Features

16 features compared.

  • Text to Speech
    ElevenLabs
    Available
    System One API
    Not available
  • Voice Cloning
    ElevenLabs
    Available
    System One API
    Not available
  • Voice Design
    ElevenLabs
    Available
    System One API
    Not available
  • Speech to Text (Scribe)
    ElevenLabs
    Available
    System One API
    Not available
  • Dubbing Studio
    ElevenLabs
    Available
    System One API
    Not available
  • Sound Effects and Music
    ElevenLabs
    Available
    System One API
    Not available
  • ElevenAgents
    ElevenLabs
    Available
    System One API
    Not available
  • API and SDKs
    ElevenLabs
    Available
    System One API
    Not available
  • Choice
    ElevenLabs
    Not available
    System One API
    Available
  • Score
    ElevenLabs
    Not available
    System One API
    Available
  • Noul
    ElevenLabs
    Not available
    System One API
    Available
  • Multi-question requests
    ElevenLabs
    Not available
    System One API
    Available
  • Model catalogue
    ElevenLabs
    Not available
    System One API
    Available
  • TypeScript SDK
    ElevenLabs
    Not available
    System One API
    Available
  • Idempotency and error handling
    ElevenLabs
    Not available
    System One API
    Available
  • Credit billing
    ElevenLabs
    Not available
    System One API
    Available

Pricing

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

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

ElevenLabs plans

  • Free

    $0

    For trying the platform; no commercial license

    • 10,000 credits/month
    • About 10 minutes of text-to-speech
    • 3 Studio projects
    • 2 concurrent requests

  • Starter

    $6/month

    Commercial license and instant voice cloning

    • 30,000 credits/month
    • Commercial license
    • Instant Voice Cloning
    • 20 Studio projects
    • Dubbing Studio
    • 3 concurrent requests

  • Creator

    Most popular

    $22/month

    Adds professional voice cloning

    • 121,000 credits/month
    • Professional Voice Cloning
    • Everything in Starter
    • 5 concurrent requests

  • Pro

    $99/month

    Higher volume and higher-quality audio output

    • 600,000 credits/month
    • 44.1kHz PCM output via API
    • 192kbps audio
    • 10 concurrent requests

  • Scale

    $299/month

    For small teams

    • 1,800,000 credits/month
    • 3 workspace seats
    • 3 Professional Voice Clones
    • 15 concurrent requests

  • Business

    $990/month

    For larger teams and low-latency text-to-speech

    • 6,000,000 credits/month
    • 10 workspace seats
    • 10 Professional Voice Clones
    • Low-latency text-to-speech
    • 25 concurrent requests

  • Enterprise

    Custom/custom

    Contract plan with security and support terms

    • Custom credits
    • Custom SSO
    • DPA and SLA
    • HIPAA BAAs
    • Volume discounts
    • Priority support

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.

ElevenLabs
9.1overall
System One API
7.3overall

  • Voice Quality

    ElevenLabs
    9.4
    System One API
    Not rated

  • Voice Cloning

    ElevenLabs
    9.0
    System One API
    Not rated

  • Language Coverage

    ElevenLabs
    9.2
    System One API
    Not rated

  • Latency

    ElevenLabs
    8.8
    System One API
    Not rated

  • Developer API & SDKs

    ElevenLabs
    9.0
    System One API
    Not rated

  • API Design

    ElevenLabs
    Not rated
    System One API
    8.0

  • Documentation Clarity

    ElevenLabs
    Not rated
    System One API
    7.8

  • Pricing Transparency

    ElevenLabs
    Not rated
    System One API
    8.5

  • Maturity & Reliability

    ElevenLabs
    Not rated
    System One API
    5.8

  • Use Case Breadth

    ElevenLabs
    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

ElevenLabs

Pros

  • Broad product range in one account: text-to-speech, speech-to-text, cloning, dubbing, sound effects, music and agents
  • Language coverage of 90+ languages on Eleven v4 and Scribe v2
  • Low-latency models: Flash v2.5 at about 75 ms and Eleven v4 Turbo at about 100 ms median
  • Free plan with 10,000 credits per month for testing
  • Official SDKs for Python and TypeScript, plus mobile and React SDKs for agents

Cons

  • Credits are consumed quickly on long-form work; the Starter plan's 30,000 credits is about 30 minutes of text-to-speech
  • The Free plan has no commercial license and needs attribution when published
  • Professional Voice Cloning requires Creator ($22 per month) or higher
  • Plan structure is complex, with credits, concurrency limits and different per-model API rates

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

Integrations

ElevenLabs

4 integrations
  • Twilio
  • Zapier
  • HubSpot
  • Cal.com

System One API

No integrations listed.

Company

  • Company
    ElevenLabs
    Eleven Labs Inc.
    System One API
    Not listed
  • Founded
    ElevenLabs
    2022
    System One API
    Not listed
  • Headquarters
    ElevenLabs
    New York, NY
    System One API
    Not listed
  • Listing
    ElevenLabs
    Claimed
    System One API
    Not claimed

Frequently asked questions

Is ElevenLabs better than System One API?

It depends on your workflow. ElevenLabs is built for Voiceovers, audiobook narration, video dubbing, voice cloning, and real-time voice agents. System One API is built for routing and triage of requests.

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

ElevenLabs: Text-to-speech, voice cloning, dubbing and voice agents built on in-house audio models. System One API: Hosted API returning structured choices, scores and probabilities for AI agent decisions.

Does ElevenLabs or System One API have a free plan?

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

Which is cheaper, ElevenLabs or System One API?

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