x-ai
SpaceXAI: Grok Voice TTS 1.0
x-ai/grok-voice-tts-1.0
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 listing, Grok Voice TTS 1.0 is a text-to-speech model from x-ai, presented under the SpaceXAI name, that converts text input into spoken audio. The catalog describes support for more than 20 languages with automatic language detection, five built-in voices, and a listed context length of 15,000. Only catalog metadata was supplied for this profile; an independent model card was not available in this source pack, so all capabilities here are provider-reported rather than independently measured or verified.[1]
Strengths
- The OpenRouter catalog reports speech output in more than 20 languages with automatic language detection, reducing the need to specify the input language manually.[1]
- Five built-in voices are listed, offering some out-of-the-box vocal variety; the catalog excerpt names Eve and Ara before truncating.[1]
- A context length of 15,000 is listed, which may accommodate longer passages of narration text in a single request.[1]
Limitations
- Evidence is limited to the OpenRouter catalog; no independent model card was available in this source pack, so all capability claims are provider-reported.[1]
- No benchmark results or measured audio-quality data were supplied; output quality, latency, and voice naturalness should be validated on your own workloads.[1]
- The catalog excerpt truncates the description mid-sentence, so the full voice roster and any additional features remain unverified.[1]
Where to use it
- Potentially suitable for drafting multilingual narration or voiceovers, pending quality checks in each target language.[1]
- Could be evaluated for prototyping voice-driven interfaces or spoken assistant responses using its built-in voices.[1]
- May fit read-aloud or accessibility pipelines that need a straightforward text-in, audio-out workflow.[1]
Sources
- [1] OpenRouter catalog · SpaceXAI: Grok Voice TTS 1.0Sources checked: Nov 13, 2026
About this model
Description below is the original text supplied by OpenRouter, shown in the source language.
Grok Voice TTS 1.0 is a text-to-speech model from SpaceXAI. It converts text into spoken audio across 20+ languages with automatic language detection, and offers five built-in voices (Eve, Ara,...
Specifications
- Model ID
- x-ai/grok-voice-tts-1.0
- Creator
- x-ai
- Added to OpenRouter
- 15.05.2026
- Context length
- 15,000
- 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
- —
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.
| Task | Grade | Source-declared capability |
|---|---|---|
| General quality | No measurement | — |
| Coding | No measurement | — |
| Agents | No measurement | — |
| Writing | No measurement | — |
| Reasoning | No measurement | — |
| Document analysis | No measurement | — |
| Vision | No measurement | — |
| Image generation | No measurement | — |
| Audio | No measurement | — |
| Video | No measurement | — |
| Embeddings | No 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.
| Provider | Context length | Price in /1M | Price out /1M | Latency p50 (30m, s) | Throughput p50 (30m, tok/s) | Uptime (30m) |
|---|---|---|---|---|---|---|
| xAI | 15,000 | — | — | — | — | 100% |
Provider data retrieved: 13.11.2026
Related articles
No published articles identify this model yet.