TTS-1
TTS-1 is worth evaluating for general LLM work when its provider route and context window match the workload.
Use it for
- Teams evaluating general LLM work
- Buyers comparing 1 tracked provider route
Do not use it for
- Vision or document-understanding workloads
- Strict JSON or tool-calling flows
- Family
- OpenAI Text-to-Speech
- Released
- 2023-11-06
- Architecture
- neural
- Specialization
- audio
- Openness
- Proprietary
- License
- ProprietaryCommercial use with conditions
- Training
- pretrained
Cheapest of 1 route · OpenAI API
About
TTS-1 is OpenAI's text-to-speech model optimized for real-time, low-latency applications, released at DevDay November 2023. Accepts text input up to 4,096 characters and outputs audio in MP3, OPUS, AAC, FLAC, WAV, or PCM. Offers 6 preset voices (alloy, echo, fable, onyx, nova, shimmer). Lower output quality than TTS-1 HD but faster. Priced at $15.00/1M characters. API ID: tts-1.
TTS-1 is a proprietary model in the OpenAI Text-to-Speech family. The structured metadata tracks audio. This page tracks provider routes through OpenAI API. No headline benchmark score is tracked for TTS-1 yet.
Top use-case fit
No primary decision-task fit is mapped for this model yet.
Provider price ladder
Compare API pricing across 1 providers for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Route |
|---|---|---|---|
| OpenAI API | $15.00 | - | ServerlessPartial |
Capabilities
Benchmark peer barsfor Coding
No task-mapped benchmark peers are available for this model yet.
Migration checks
No linked migration route is available for this model yet.
API versions
tts-1tts-1-1106Rankings & picks(2)
Cheapest of 1 route · OpenAI API