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SpaceXAI: Grok STT 1.0

Source description (English)

Grok STT is SpaceXAI's speech-to-text model, available via the REST /v1/stt endpoint. It supports transcription with word-level timestamps, optional speaker diarization, and multichannel audio.

View source on OpenRouter
Overview

Model specifications

Context
Not provided
Maximum output
Not provided
Architecture
audio->transcription
Tokenizer
Grok
Knowledge cutoff
Not provided
Moderated
No
OPENROUTER

Complete pricing

Synchronized OpenRouter rates. Token prices are shown per one million tokens.

Audio seconds
$0.000028
per second
API

Quick start

Set OPENROUTER_API_KEY locally. Python requires requests; JavaScript runs in Node.js. Keep the key on the server.

API documentation

curl --fail-with-body https://openrouter.ai/api/v1/audio/transcriptions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -F 'model=x-ai/grok-stt-1.0' \
  -F 'file=@audio.wav'
Capabilities

Input → Output

Input
audio
Output
transcription
API

Supported API parameters

Available providers

1 Provider

Checked: September 19, 2026

Live providers on OpenRouter

Provider availability, latency, throughput and routing can change continuously. Open the source page for current operational data.

OpenRouter

xAI

Not provided
Context
Not provided
Maximum output
Not provided
x-ai

4 models

All models
x-ai logox-ai

SpaceXAI: Grok 4.7

Grok 4.7 is SpaceXAI's flagship model for coding, agentic tasks, and knowledge work, succeeding Grok 4.6. It is particularly strong at long-running software engineering tasks, verifying its own work, and...

Context
500K
Input
text · image · file
Output
text
Input: $1.6Output: $4.8per 1M tokens
View model details →
x-ai logox-ai

SpaceXAI: Grok 4.6

Grok 4.6 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM. It is succeeded by Grok 4.7.

Context
500K
Input
text · image · file
Output
text
Input: $2Output: $6per 1M tokens
View model details →
x-ai logox-ai

xAI: Grok Imagine Image 2.0

Grok Imagine Image 2.0 is an image generation and editing model from xAI. It is suited for creating images from text prompts and editing images from references, with low and...

Context
66K
Input
text · image
Output
image
Image input: $0.01 per imageImage output: $0.04 per image
View model details →
x-ai logox-ai

SpaceXAI: Grok Imagine Video 1.5

Grok Imagine Video 1.5 is a video generation model from SpaceXAI. It creates videos from text prompts, with an optional starting image to guide the scene. It can direct subject...

Context
Not provided
Input
text · image
Output
video
Image input: $0.01 per imageVideo output: $0.08 per second
View model details →