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Polly Long-Form


Polly Long-Form is Amazon logoAmazon's text to speech model. Amazon Polly TTS engine optimized for synthesizing long-form content such as articles and documents with natural prosody.
Spec
Canonical IDamazon-polly-long-form
TypeText to Speech
StatusActive
CreatorAmazonAmazon
Input ModalitiesText
Output ModalitiesAudio
Elo Rating
1042
#181

Capabilities

Input1/5
Text
Image·
Audio·
Video·
PDF·
Output1/5
Text·
Image·
Audio
Video·
Embedding·
Capabilities0/13
Reasoning·
Adaptive Reasoning·
Function Calling·
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Polly Long-FormCurrent
Polly GenerativeAvailable
Polly NeuralAvailable
Polly StandardAvailable

Model IDs