That's NeuralModel catalog

heygen

HeyGen: HeyGen Voice Turbo (free)

heygen/heygen-voice-1-turbo:free

Our take

AI-assisted analysis based on the sources below. Suitability is an editorial assessment; test it on your own workload.

According to its OpenRouter catalog entry, heygen/heygen-voice-1-turbo:free is a free-access text-to-speech variant of HeyGen Voice Turbo, described as a lower-latency edition of HeyGen's HeyGen Voice model. The listing reports ten default voices and voice clones when users supply their own HeyGen API key. No benchmarks, context length, or supported parameters are published, and no independent model card was available in this source pack, so real-world quality and latency should be validated per workload.[1]

Strengths

  • Catalog describes it as a lower-latency version of HeyGen Voice, positioning it for latency-sensitive speech generation.[1]
  • Lists ten default voices and support for voice clones for users who bring their own HeyGen key.[1]
  • Listed under a free-access variant, which lowers the barrier to evaluation and prototyping.[1]

Limitations

  • Only OpenRouter catalog data was supplied; an independent model card was not available in this source pack, so capabilities are source-reported and unverified.[1]
  • No benchmark results, context length, knowledge cutoff, or supported inference parameters are reported; performance is unmeasured rather than confirmed, and workload validation is needed.[1]
  • The catalog records an expiration date of 2026-11-30 for this listing, so free access may be time-limited.[1]

Where to use it

  • Could be evaluated for narration or voiceover drafts where quick turnaround matters, pending latency and quality testing on the target workload.[1]
  • May fit video or avatar voice pipelines already built on HeyGen, since voice cloning requires the user's own HeyGen key.[1]
  • Reasonable candidate for low-cost prototyping and comparison testing of a hosted text-to-speech API before committing to a paid setup.[1]

Sources

  1. [1] OpenRouter catalog · HeyGen: HeyGen Voice Turbo (free)Sources checked: Nov 13, 2026

About this model

Description below is the original text supplied by OpenRouter, shown in the source language.

HeyGen Voice Turbo is a lower-latency version of HeyGen Voice, HeyGen's text-to-speech model. It has the same 10 default voices, or bring your own HeyGen key to use voice clones...

Specifications

Model ID
heygen/heygen-voice-1-turbo:free
Canonical ID
heygen/heygen-voice-1-turbo-20261009
Creator
heygen
Added to OpenRouter
26.10.2026
Context length
0
Modality
text->speech
Input modalities
text
Output modalities
speech
Token pricing
No per-token price in the source snapshot — see OpenRouter for the billing unit
Knowledge cutoff
—
Expiration date
30.11.2026

Tasks and capabilities

A grade appears only where the source supplies a matching measurement for that task, the model is active and the cohort holds at least 10 comparable models. The capability column lists facts the source declares — supported formats, reasoning and tool parameters — which are not measured quality.

TaskGradeSource-declared capability
General qualityNo measurement—
CodingNo measurement—
AgentsNo measurement—
WritingNo measurement—
ReasoningNo measurement—
Document analysisNo measurement—
VisionNo measurement—
Image generationNo measurement—
AudioNo measurement—
VideoNo measurement—
EmbeddingsNo measurement—

Evaluations

No evaluations are supplied for this model.

How grades work

Each letter grade compares a model only against other models scored by the same source and metric in the current snapshot. S means the top 10%, A the next 20%, B the next 30%, C the rest. Models without a published measurement are shown as not rated — a supported format alone never implies measured quality.

  • S — S — top 10% of the cohort
  • A — A — next 20% of the cohort
  • B — B — next 30% of the cohort
  • C — C — below the B band

Providers

Optional live provider statistics from OpenRouter. Missing values are unknown, not zero.

ProviderContext lengthPrice in /1MPrice out /1MLatency p50 (30m, s)Throughput p50 (30m, tok/s)Uptime (30m)
HeyGen0————100%

Provider data retrieved: 13.11.2026

No published articles identify this model yet.