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async model product

Async Flash v1.5

Model ranked by Artificial Analysis.

Updated Aug 18, 2026. Default version: Async Flash v1.5

Compare
LLMBoard Text-to-Speech Score61.7Async Flash v1.5
Coverage35%1 benchmark families
Context windowN/ATokens
Native catalog priceN/APrice unavailable

On this page

  • Capability
  • Benchmarks
  • Arena
  • Pricing
  • Runtime
  • Specification
  • Versions
  • Compare
  • Similar models
  • About
  • FAQ

Async Flash v1.5 Capability Profile

This profile uses the model's current scored version. Arena ratings and prices are shown separately.

Async Flash v1.5 LLMBoard score breakdown

Async Flash v1.5 Benchmark Results

Benchmark scores for Async Flash v1.5.

1 rows
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Benchmark
Score
Rank
Participants
Percentile
Evidence
Evaluated
BenchmarkArtificial Analysis Text To SpeechScore1,153 EloRank15Participants93PercentileN/AEvidenceAEvaluatedAug 18, 2026

Async Flash v1.5 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.

Async Flash v1.5 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.

Async Flash v1.5 Runtime Performance

Provider-specific output speed and catalog latency for Async Flash v1.5. Runtime does not affect the capability score.

No runtime data

No provider-specific speed or latency record is linked to the default version yet.

Browse runtime rankings

Output Speed is generated output tokens received per second. Catalog latency is reported separately from observed provider TTFT.

Async Flash v1.5 Specifications

Technical details for the model's default version.

Version
Async Flash v1.5
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

Async Flash v1.5 Versions

Available versions of this model. The score column identifies the version used in the overall ranking.

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Version
Released
LLMBoard
Parameters
Context
Max output
Open weights
License
VersionAsync Flash v1.5ReleasedN/ALLMBoard61.7ParametersN/AContextN/AMax outputN/AOpen weightsN/ALicenseUnspecified

Async Flash v1.5 vs nearby models

Open a comparison with the three ranked models immediately above and below this model.

Async Flash v1.5vsGradium TTS BetaAsync Flash v1.5vsFalcon 2Async Flash v1.5vsSpeech 2.8 TurboAsync Flash v1.5vsStep TTS 2 (Mar 2026)Async Flash v1.5vsFish Audio S2.1 ProAsync Flash v1.5vsSpeech 2.6 HD

Models similar to Async Flash v1.5

Recommendations prioritize the same model type and family, then the closest LLMBoard score.

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Speech 2.8 Turbo

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What is Async Flash v1.5?

Key information about Async Flash v1.5 and its available data.

Model ranked by Artificial Analysis.

Data as of 2026-08-17.

FAQ

Common questions about Async Flash v1.5.

When was Async Flash v1.5 released?

A release date is not available for the default version.

How much does Async Flash v1.5 cost?

No native catalog price is currently available for Async Flash v1.5.

Who created Async Flash v1.5?

Async Flash v1.5 was created by async.

What is the context window for Async Flash v1.5?

A context window is not available for the default version.

Is Async Flash v1.5 open weight?

No. The default version is not marked as having publicly available weights.

How many API providers offer Async Flash v1.5?

No provider offering is currently linked to the default version.

What models should I compare Async Flash v1.5 with?

Nearby ranked alternatives include Gradium TTS Beta, Falcon 2, Speech 2.8 Turbo.