OpenAI model product
TTS 1
OpenAI text-to-speech model
Updated Aug 17, 2026. Default version: TTS-1
LLMBoard Text-to-Speech Score54.7TTS-1
Coverage35%1 benchmark families
Context windowN/ATokens
Native catalog price$15 / 1M characters1M characters
TTS 1 Capability Profile
This profile uses the model's current scored version. Arena ratings and prices are shown separately.
TTS 1 Benchmark Results
Benchmark scores for TTS-1.
Sort by
Benchmark | Score | Rank | Participants | Percentile | Evidence | Evaluated |
|---|
| BenchmarkArtificial Analysis Text To Speech | Score1,094 Elo | Rank34 | Participants93 | PercentileN/A | EvidenceA | Evaluated |
TTS 1 Arena Results
Preference and agent-evaluation results for the default version.
No Arena results
The default version does not have a matching Arena result yet.
TTS 1 Pricing
Prices are shown in the model's native media unit and resolution tier.
- Native price
- $15 / 1M characters
- Price unit
- 1M characters
- Tier
- Standard
- Tracked offerings
- 1
Sort by
Provider | Provider model ID | Region | Native price | Unit | Tier | Updated |
|---|
| ProviderOpenAI | Provider model IDtts-1 | Regionglobal | Native price$15 / 1M characters | Unit1M characters | TierN/A | Updated |
Media catalog prices are not converted into token input or output prices.
TTS 1 Runtime Performance
Provider-specific output speed and catalog latency for TTS-1. Runtime does not affect the capability score.
No runtime data
Browse runtime rankingsNo provider-specific speed or latency record is linked to the default version yet.
Output Speed is generated output tokens received per second. Catalog latency is reported separately from observed provider TTFT.
TTS 1 Specifications
Technical details for the model's default version.
- Version
- TTS-1
- Released
- Unknown
- Knowledge cutoff
- Unknown
- Parameters
- N/A
- Context window
- N/A
- Max output
- N/A
- Inputs
- text
- Outputs
- audio
- Open weights
- No
- License
- Unspecified
TTS 1 Versions
Available versions of this model. The score column identifies the version used in the overall ranking.
Sort by
Version | Released | LLMBoard | Parameters | Context | Max output | Open weights | License |
|---|
| VersionTTS-1 | ReleasedN/A | LLMBoard54.7 | ParametersN/A | ContextN/A | Max outputN/A | Open weightsNo | LicenseUnspecified |
TTS 1 vs nearby models
Open a comparison with the three ranked models immediately above and below this model.
Models similar to TTS 1
Recommendations prioritize the same model type and family, then the closest LLMBoard score.
OP
TTS 1 HD
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OP
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GO
Google
Gemini 2.5 Flash Lite TTS
EL
Eleven
ElevenLabs
What is TTS 1?
Key information about TTS 1 and its available data.
OpenAI text-to-speech model
Data as of 2026-08-17.
FAQ
Common questions about TTS 1.
When was TTS 1 released?
A release date is not available for the default version.
How much does TTS 1 cost?
TTS 1's current catalog price is $15 / 1M characters.
Who created TTS 1?
TTS 1 was created by OpenAI.
What is the context window for TTS 1?
A context window is not available for the default version.
Is TTS 1 open weight?
No. The default version is not marked as having publicly available weights.
How many API providers offer TTS 1?
1 provider offerings are linked to the default version.
What models should I compare TTS 1 with?
Nearby ranked alternatives include Eleven, Gradium TTS, Chatterbox HD.