Inworld TTS 1.5 Max is Inworld's text to speech model. The high-quality tier of Inworld's TTS 1.5 series, offering premium voice synthesis for interactive entertainment and game character dialogue.
Specifications
Canonical IDinworld-tts-1-5-max
TypeText to Speech
StatusActive
CreatorInworld
Input ModalitiesText
Output ModalitiesAudio
Benchmarks
Elo Rating
1212
#31

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·

Other models

ModelTierReleasedContextInput / 1MOutput / 1M
Step TTS 2
StyleTTS 2
TTS HD 2.5
Inworld TTS 1 Max
TTS 1
TTS 1 HD
Inworld TTS 1.5 MiniMini
Azure Neural
Inworld TTS 1
LMNT

Model IDs