GPT Transcribe vs Grok Speech to Text 1.0
rates, context and capabilities side by side on the impossibl api, and what the same workload costs on each.
| specification | GPT Transcribe openai/gpt-transcribe | Grok Speech to Text 1.0 xai/grok-stt-1.0 |
|---|---|---|
| audio input · usd / minute | $0.0045 | $0.00166667 |
| modalities · in → out | takes text and audio in, gives text out | takes text and audio in, gives text out |
| released | jul 28, 2026 | not published |
| model type | Speech to text | Speech to text |
pricing
| base api rates · usd per minute | GPT Transcribe openai/gpt-transcribe | Grok Speech to Text 1.0 xai/grok-stt-1.0 |
|---|---|---|
| audio input | $0.0045 | $0.00166667 |
a shared cost estimate needs models of one type with token pricing; compare the published rates and billing units here.
specifications
| as published | GPT Transcribe openai/gpt-transcribe | Grok Speech to Text 1.0 xai/grok-stt-1.0 |
|---|---|---|
| creator | OpenAI | xAI |
| model type | Speech to text | Speech to text |
| context window | not published | not published |
| input | takes text and audio in, gives text out | takes text and audio in, gives text out |
| output | text | text |
| tool calling | not verified | not verified |
| released | jul 28, 2026 | not published |
| endpoint | /v1/audio/transcriptions | /v1/audio/transcriptions |
unknown means the public catalog does not establish that fact. a model's documented capabilities can differ from what a particular api supports. see the model documentation for integration details.
benchmarks
| primary configuration | GPT Transcribe openai/gpt-transcribe speech-to-text | Grok Speech to Text 1.0 xai/grok-stt-1.0 no benchmarks yet |
|---|---|---|
| intelligence index · gateway rank | not measured | not measured |
each column describes the tested configuration named under the model; performance and costs can differ on impossibl. a score one model was not measured on is left blank rather than scored zero. indices are ranked against every model on the gateway with one. last checked 2026-09-11.
summary
GPT Transcribe and Grok Speech to Text 1.0 are available through the Impossibl API. they share the /v1/audio/transcriptions endpoint; the model identifier selects the model for a request.
GPT Transcribe is created by OpenAI. Its context window is not published. Base API pricing (USD): $0.0045 per minute of audio.
Grok Speech to Text 1.0 is created by xAI. Its context window is not published. Base API pricing (USD): $0.00166667 per minute of audio.
GPT Transcribe →Grok Speech to Text 1.0 →
this page compares GPT Transcribe vs Grok Speech to Text 1.0 as listed by the impossibl public api. prices and availability come from that catalog, refreshed here every five minutes. this is an impossibl offering, not a comparison of independent hosting-provider quotes.
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