Inworld model product
Realtime TTS 1.5 Max
Model ranked by Artificial Analysis.
Updated Aug 18, 2026. Default version: Realtime TTS 1.5 Max
LLMBoard Text-to-Speech Score64.4Realtime TTS 1.5 Max
Coverage35%1 benchmark families
Context windowN/ATokens
Native catalog priceN/APrice unavailable
Realtime TTS 1.5 Max Capability Profile
This profile uses the model's current scored version. Arena ratings and prices are shown separately.
Realtime TTS 1.5 Max Benchmark Results
Benchmark scores for Realtime TTS 1.5 Max.
Sort by
Benchmark | Score | Rank | Participants | Percentile | Evidence | Evaluated |
|---|
| BenchmarkArtificial Analysis Text To Speech | Score1,199 Elo | Rank07 | Participants93 | PercentileN/A | EvidenceA | Evaluated |
Realtime TTS 1.5 Max 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.
Realtime TTS 1.5 Max Pricing
Prices are shown in the model's native media unit and resolution tier.
- Native price
- N/A
- Price unit
- N/A
- Tier
- Standard
- Tracked offerings
- 0
No price available
This model does not have a current media price.
Media catalog prices are not converted into token input or output prices.
Realtime TTS 1.5 Max Runtime Performance
Provider-specific output speed and catalog latency for Realtime TTS 1.5 Max. 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.
Realtime TTS 1.5 Max Specifications
Technical details for the model's default version.
- Version
- Realtime TTS 1.5 Max
- 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
Realtime TTS 1.5 Max 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 |
|---|
| VersionRealtime TTS 1.5 Max | ReleasedN/A | LLMBoard64.4 | ParametersN/A | ContextN/A | Max outputN/A | Open weightsN/A | LicenseUnspecified |
Realtime TTS 1.5 Max vs nearby models
Open a comparison with the three ranked models immediately above and below this model.
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What is Realtime TTS 1.5 Max?
Key information about Realtime TTS 1.5 Max and its available data.
Model ranked by Artificial Analysis.
Data as of 2026-08-17.
FAQ
Common questions about Realtime TTS 1.5 Max.
When was Realtime TTS 1.5 Max released?
A release date is not available for the default version.
How much does Realtime TTS 1.5 Max cost?
No native catalog price is currently available for Realtime TTS 1.5 Max.
Who created Realtime TTS 1.5 Max?
Realtime TTS 1.5 Max was created by Inworld.
What is the context window for Realtime TTS 1.5 Max?
A context window is not available for the default version.
Is Realtime TTS 1.5 Max open weight?
No. The default version is not marked as having publicly available weights.
How many API providers offer Realtime TTS 1.5 Max?
No provider offering is currently linked to the default version.
What models should I compare Realtime TTS 1.5 Max with?
Nearby ranked alternatives include Gemini 3.1 Flash TTS, StepAudio 2.5 TTS, Sonic 3.5.