Gandr

Unlimited text-to-speech and voice cloning billed per concurrent stream

Intermediate API
Screenshot of Gandr, Unlimited text-to-speech and voice cloning billed per concurrent stream

What is Gandr?

Gandr is a natural text to speech tool. Gandr offers text-to-speech in 23 languages with voice cloning from about ten seconds of audio, billed per concurrent stream rather than per character. Agents connect over WebSocket and narration over HTTP, with published latency benchmarks and a browser console for quick testing.

Gandr is a text-to-speech and voice cloning platform built around an unusual billing model: customers pay for concurrent streams rather than per character or per minute. Once a stream is open, the speech that travels through it is not counted, so a high volume week costs the same as a quiet one. The engine covers 23 languages, and a single voice identity carries across all of them, which matters for anyone producing the same content for several markets. Voice cloning is deliberately lightweight. A reference clip of roughly ten seconds is enough to produce a working clone, with no training job to schedule and no per voice fee. Clones are cached after first use. On the output side, every clip carries an inaudible watermark, and the company states that submitted audio does not enter any training set. Latency figures are published on a dedicated benchmark page: 116 ms p50 for first audio when server side is warm, and 146 ms for the first byte over the open internet. The company argues that tail latency, not the median, is what determines whether a spoken conversation feels natural. The product is aimed at teams embedding speech into software as much as at studios producing audio. Agents connect over WebSocket, while narration and dubbing jobs run over HTTP, and the homepage names LiveKit, Pipecat and Vapi as drop-in environments. Typical uses listed include audiobook narration, dubbing, video, games and voice agents. A browser console lets anyone type a line, pick a voice such as Mia or Lewis, switch language and play the result before committing to an integration. Compared with per character vendors, Gandr suits workloads that are steady or spiky rather than predictable and small: always-on voice agents, long-form narration at scale, multi-language dubbing. Access starts with a key issued on sign in, and pricing moves to a call from 500 lines upward, so very small or highly irregular users may find the model less economical than metered alternatives.

How do you use Gandr?

  1. 1Sign in and collect your API key
    Create an account and the key appears on screen immediately. This is the credential used for every request afterwards.
  2. 2Test a voice in the console
    Type a line, choose a voice and a language, then play it back. Useful for judging tone before wiring anything up.
  3. 3Clone your own voice
    Upload a reference clip of about ten seconds. The clone is cached after first use, with no training job to wait on.
  4. 4Read the latency benchmark
    Check the p50 and open internet first byte figures, plus the notes on tail latency, to set expectations for conversational use.
  5. 5Choose your transport
    Use the streaming endpoint over WebSocket for live agents, or plain HTTP for narration and dubbing batches.
  6. 6Review pricing and scale up
    Confirm what a stream covers before committing. From 500 lines, pricing moves to a direct conversation.

Pros and cons

Pros

  • Flat per stream pricing means busy periods do not increase the billAI
  • Voice cloning needs only a short reference clip and carries no per voice feeAI
  • Latency is documented on a public benchmark page, including tail behaviourAI
  • One voice identity works across all 23 supported languagesAI
  • Drop-in paths for LiveKit, Pipecat and Vapi cover real-time agent useAI

Cons

  • Per stream billing is hard to budget for teams with unpredictable concurrencyAI
  • Pricing above 500 lines requires a sales call, which slows evaluationAI
  • Published latency figures are self-reported rather than independently auditedAI
  • No stated support channels, documentation portal or SLA on the homepageAI
  • Watermarking is applied to every clip with no opt-out describedAI

How much does Gandr cost?

Free trial

A key is issued on the spot after signing in, so the service can be tested before any paid commitment. No trial length is stated.

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Pricing

Billed per concurrent stream at a flat rate, with unlimited speech inside each stream. The homepage does not publish a figure. Requests from 500 lines upward are priced on a call, and a key is issued free on sign in.

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Integrations

The homepage names LiveKit, Pipecat and Vapi as drop-in environments, with agents over WebSocket and narration or dubbing over HTTP.

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Features

Text-to-speech in 23 languages with one voice identity across languages, voice cloning from about ten seconds of audio, streaming over WebSocket for agents, HTTP for narration and dubbing, an inaudible watermark on every clip, no training on submitted audio, and a browser console for typing and previewing lines.

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Frequently asked questions about Gandr

  • How much does Gandr cost?
    Billed per concurrent stream at a flat rate, with unlimited speech inside each stream. The homepage does not publish a figure. Requests from 500 lines upward are priced on a call, and a key is issued free on sign in.
  • Does Gandr offer a free trial?
    A key is issued on the spot after signing in, so the service can be tested before any paid commitment. No trial length is stated.
  • Does Gandr have an API?
    Yes, Gandr offers an API.
  • How do you use Gandr?
    The walkthrough on this page covers 6 steps: 1. Sign in and collect your API key 2. Test a voice in the console 3. Clone your own voice 4. Read the latency benchmark 5. Choose your transport 6. Review pricing and scale up.
  • What platforms does Gandr support?
    Gandr is available on Web App.
  • What does Gandr integrate with?
    The homepage names LiveKit, Pipecat and Vapi as drop-in environments, with agents over WebSocket and narration or dubbing over HTTP.

Status

StatusActive
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Added10/21/2026

Platforms

Web App

Pricing

Free TrialPaid