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Model infoModelsSnapshot: 15 Oct 2026

PlayAI / PlayHT / PlayHT speech

PlayHT 1.0

Historical PlayHT 1.0 speech engine documented in the provider’s synthesis API.

Speech & voice
historicalClosed weightsText-to-speech
Official documentation (opens in a new tab)Reviewed 13 Oct 2026
8 of 22 specification fields collected
Text input limit2,000 characters per HTTP streaming requestSee specification notes below
LanguagesNot collectedAwaiting source review
Input billingNot collectedPlayAI / PlayHT
Output billingNot collectedNo inferred price

Specifications

Provider-documented facts. “Not collected” means we have not verified that field yet, not that the feature is unsupported.

Context / input limit
Not collected
Maximum output
Not collected
Input modalities
TextSource for Input modalities (opens in a new tab)
Output modalities
AudioSource for Output modalities (opens in a new tab)
Reasoning
Not collected
Tool calling
Not collected
Structured output
Not collected
Streaming
SupportedSource for Streaming (opens in a new tab)

Historical HTTP streaming support; not confirmation of current endpoint availability.

Batch processing
Not collected
Fine-tuning
Not collected
Knowledge cutoff
Not collected
Release date
Not collected
Parameters
Not collected
Architecture
Not collected
Languages
Not collected
Context caching
Not collected
Maximum prompt characters
2,000 characters per HTTP streaming requestSource for Maximum prompt characters (opens in a new tab)
Output formats
MP3, μ-lawSource for Output formats (opens in a new tab)
Published price
Not collected

No current model-specific price verified. Archived character quotas or third-party estimates are not presented as current rates.

Audio sample rates
8,000–48,000 Hz selectable in the HTTP APISource for Audio sample rates (opens in a new tab)
Seed control
Non-negative seed; omit for random seedSource for Seed control (opens in a new tab)
Generation controls
Speed 0.1–5; temperature 0–2; output-quality selectionSource for Generation controls (opens in a new tab)

Access & pricing

Prices belong to an endpoint and billing tier. A provider listing does not guarantee access for every account or region.

PlayAI / PlayHT

Provider source (opens in a new tab)
API model ID
PlayHT1.0
Access
Historical documented access path. Native service availability has not been verified; surviving documentation is not proof that the route still accepts requests.
Regions
Not established for this historical access path.
API endpoint URL
https://api.play.ht/api/v2/tts/streamSource for API endpoint URL (opens in a new tab)
Streaming
SupportedSource for Streaming (opens in a new tab)

Historical HTTP streaming support; not confirmation of current endpoint availability.

Maximum prompt characters
2,000 characters per HTTP streaming requestSource for Maximum prompt characters (opens in a new tab)
Output formats
MP3, μ-lawSource for Output formats (opens in a new tab)

Endpoint pricing has not been collected. Check the provider for applicable rates.

Data & enterprise terms

Current retention, training-use and data-residency terms were not verified. Do not infer guarantees from historical API examples.

Caching

Caching can reuse earlier input processing. Availability, lifetime and billing depend on the endpoint. A cache hit still generates a new response.

01 / INITIAL INPUTProcess & retain

The system processes eligible input and retains reusable state.

02 / LATER REQUESTCheck available state

Reuse depends on matching input, session state and the cache policy.

03 / CACHE HITReuse & generate

Reusing state can reduce repeated work. Any charges follow the billing rules below.

PlayAI / PlayHT

PlayHT1.0
Not verified

No model-specific prompt-cache contract collected. Audio buffering and voice conditioning are not evidence of prompt caching.

How it works
Not collected

No model-specific prompt-cache contract collected. Audio buffering and voice conditioning are not evidence of prompt caching.

Minimum reusable input
Not collected

No model-specific prompt-cache contract collected. Audio buffering and voice conditioning are not evidence of prompt caching.

Lifetime & refresh
Not collected

No model-specific prompt-cache contract collected. Audio buffering and voice conditioning are not evidence of prompt caching.

How to enable it
Not collected

No model-specific prompt-cache contract collected. Audio buffering and voice conditioning are not evidence of prompt caching.

Usage fields
Not collected

No model-specific prompt-cache contract collected. Audio buffering and voice conditioning are not evidence of prompt caching.

Billing rules
Not collected

No model-specific prompt-cache contract collected. Audio buffering and voice conditioning are not evidence of prompt caching.

Limits & data boundaries
Not collected

No model-specific prompt-cache contract collected. Audio buffering and voice conditioning are not evidence of prompt caching.

No verified cache rate for this endpoint. An empty rate is not a zero charge.

Voice choices

25 voices

Choose a voice within PlayHT 1.0. These are API voice identifiers, not additional model releases. Source links document each voice.

Published voice catalog
Voice / API IDLanguage & accentDelivery
Abigails3://mockingbird-prod/abigail\_vo\_6661b91f-4012-44e3-ad12-589fbdee9948/voices/speaker/manifest.jsonEnglish (US)
american		female; narrative style; smooth textureVoice source (opens in a new tab)
Arthur (Advertising)s3://peregrine-voices/arthur ads parrot saad/manifest.jsonEnglish (GB)
british		adult; male; neutral loudness; advertising style; neutral tempo; smooth textureVoice source (opens in a new tab)
Arthur (Meditation)s3://mockingbird-prod/arthur\_vo\_meditatoin\_211f702d-b185-4115-b8b4-801f8130a38d/voices/speaker/manifest.jsonEnglish (GB)
british		adult; male; neutral loudness; meditation style; neutral tempo; smooth textureVoice source (opens in a new tab)
Arthur (Narrative)s3://mockingbird-prod/arthur\_vo\_narrative\_a33fd610-73a9-4401-9a78-6b8219c68a9e/voices/speaker/manifest.jsonEnglish (GB)
british		adult; male; neutral loudness; narrative style; neutral tempo; smooth textureVoice source (opens in a new tab)
Arthur (Training)s3://mockingbird-prod/arthur\_vo\_training\_9281c8fd-c7f0-4445-a148-466292d3d329/voices/speaker/manifest.jsonEnglish (GB)
british		adult; male; neutral loudness; training style; neutral tempo; smooth textureVoice source (opens in a new tab)
Ayla (Advertising)s3://mockingbird-prod/ayla\_vo\_commercials\_d66900d5-69f5-476f-9bd6-8eab2936dda3/voices/speaker/manifest.jsonEnglish (US)
american		female; advertising styleVoice source (opens in a new tab)
Ayla (Expressive)s3://mockingbird-prod/ayla\_vo\_expressive\_16095e08-b9e8-429b-947c-47a75e41053b/voices/speaker/manifest.jsonEnglish (US)
american		female; narrative styleVoice source (opens in a new tab)
Ayla (Meditation)s3://mockingbird-prod/ayla\_vo\_meditation\_d11dd9da-b5f1-4709-95a6-e6d5dc77614a/voices/speaker/manifest.jsonEnglish (US)
american		female; meditation styleVoice source (opens in a new tab)

What the measurements say

No benchmark observations have been added for this model. We do not turn a vendor description into a performance score.

Latency and throughput depend on the host, request size, reasoning settings and load. There is no measured speed or global usage figure in this record.

The record behind the model

Why it is included

Named provider-operated speech engine with no public weight distribution identified in the reviewed official inventory. PlayAI-Groq documents a commercial model license for Dialog. Classification of legacy engines is based on provider-controlled access, not a claim that all PlayAI work is closed; public PlayDiffusion checkpoints are explicitly excluded.

Classification evidence (opens in a new tab)

Sources reviewed