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Smallest.ai model product

Lightning V3.1 Pro TTS (Jun 2026)

Model ranked by Artificial Analysis.

Updated Aug 18, 2026. Default version: Lightning V3.1 Pro TTS (Jun 2026)

Compare
LLMBoard Text-to-Speech Score60.3Lightning V3.1 Pro TTS (Jun 2026)
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

Lightning V3.1 Pro TTS (Jun 2026) Capability Profile

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

Lightning V3.1 Pro TTS (Jun 2026) LLMBoard score breakdown

Lightning V3.1 Pro TTS (Jun 2026) Benchmark Results

Benchmark scores for Lightning V3.1 Pro TTS (Jun 2026).

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Benchmark
Score
Rank
Participants
Percentile
Evidence
Evaluated
BenchmarkArtificial Analysis Text To SpeechScore1,138 EloRank19Participants93PercentileN/AEvidenceAEvaluatedAug 18, 2026

Lightning V3.1 Pro TTS (Jun 2026) 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.

Lightning V3.1 Pro TTS (Jun 2026) 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.

Lightning V3.1 Pro TTS (Jun 2026) Runtime Performance

Provider-specific output speed and catalog latency for Lightning V3.1 Pro TTS (Jun 2026). 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.

Lightning V3.1 Pro TTS (Jun 2026) Specifications

Technical details for the model's default version.

Version
Lightning V3.1 Pro TTS (Jun 2026)
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

Lightning V3.1 Pro TTS (Jun 2026) Versions

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

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Version
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LLMBoard
Parameters
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Open weights
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VersionLightning V3.1 Pro TTS (Jun 2026)ReleasedN/ALLMBoard60.3ParametersN/AContextN/AMax outputN/AOpen weightsN/ALicenseUnspecified

Lightning V3.1 Pro TTS (Jun 2026) vs nearby models

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

Lightning V3.1 Pro TTS (Jun 2026)vsStep TTS 2 (Mar 2026)Lightning V3.1 Pro TTS (Jun 2026)vsFish Audio S2.1 ProLightning V3.1 Pro TTS (Jun 2026)vsSpeech 2.6 HDLightning V3.1 Pro TTS (Jun 2026)vsRealtime TTS 1.5 MiniLightning V3.1 Pro TTS (Jun 2026)vsAzure HD 2.5Lightning V3.1 Pro TTS (Jun 2026)vsAsync Pro v1.0

Models similar to Lightning V3.1 Pro TTS (Jun 2026)

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

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What is Lightning V3.1 Pro TTS (Jun 2026)?

Key information about Lightning V3.1 Pro TTS (Jun 2026) and its available data.

Model ranked by Artificial Analysis.

Data as of 2026-08-17.

FAQ

Common questions about Lightning V3.1 Pro TTS (Jun 2026).

When was Lightning V3.1 Pro TTS (Jun 2026) released?

A release date is not available for the default version.

How much does Lightning V3.1 Pro TTS (Jun 2026) cost?

No native catalog price is currently available for Lightning V3.1 Pro TTS (Jun 2026).

Who created Lightning V3.1 Pro TTS (Jun 2026)?

Lightning V3.1 Pro TTS (Jun 2026) was created by Smallest.ai.

What is the context window for Lightning V3.1 Pro TTS (Jun 2026)?

A context window is not available for the default version.

Is Lightning V3.1 Pro TTS (Jun 2026) open weight?

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

How many API providers offer Lightning V3.1 Pro TTS (Jun 2026)?

No provider offering is currently linked to the default version.

What models should I compare Lightning V3.1 Pro TTS (Jun 2026) with?

Nearby ranked alternatives include Step TTS 2 (Mar 2026), Fish Audio S2.1 Pro, Speech 2.6 HD.