OpenAI

GPT-4o mini Transcribe

Name: GPT-4o mini Transcribe
Brand: OpenAI
Price: 0.00405 USD
Availability: InStock

GPT-4o mini Transcribe is a speech-to-text model optimized for high-accuracy transcription of conversational audio, noisy environments, and multilingual code-switching. Reach for it when you need reliable dictation or translation from audio inputs without sacrificing processing speed.

Modalities

Text → Text

Price

$0.00405 / min

Context

Usage

How much this model is actually called here.

Rank

#85

of 100 active models

Tokens served

18.9K

all-time

Platform share

0.0%

of all tokens

How it behaves under real clients

The same model answering different prompt shapes — measured, not benchmarked.

Client	Requests	Tokens	Throughput	To first token	p95 total	Completed
Pheme	1,261	0			1.23 s	94.7%
Python App	270	0			21 s	78.5%

Grouped by the client that sent the request. Not a benchmark: the same model on different prompt shapes. Throughput and time-to-first-token are medians; p95 is the slowest response in twenty. 2 clients under 100 requests not shown.

Pricing

Per minute of audio processed. Min billable: 1 minute.

$0.00405 / min

When to use GPT-4o mini Transcribe

Updated 2026-09-03

Where this model earns its cost — and where it doesn't.

This is OpenAI's speech-to-text engine, designed to convert audio inputs into text. It handles conversational speech, background noise, and mixed-language audio streams with high accuracy. The model accepts audio input and returns text, with no support for vision, reasoning, or structured outputs.

On Kyma, it runs through an OpenAI-compatible endpoint using a single API key. Requests benefit from automatic failover, routing around degraded serving paths transparently. The platform reports exact request costs in the usage object and identifies the executed model via the X-Kyma-Model header. This model does not support prompt caching.

The model operates on a per-minute billing basis and is optimized for fast processing. It does not generate audio or structured JSON, and its context window is limited to 1500 tokens. It returns a plain transcript with no per-segment timestamps, so `verbose_json`, `srt` and `vtt` are refused on this SKU (`400 segments_unsupported`).

Conversational Audio Transcription

Captures multi-speaker dialogue and natural speech patterns with high accuracy.

Noisy Background Dictation

Filters background interference to produce clean text from field recordings or calls.

Mixed Language Audio Processing

Handles code-switched audio streams like Vietnamese and English in a single pass.

Not ideal for: Do not use this model for generating audio, running reasoning tasks, or processing files that exceed its 1500-token context limit. It is also not the model to start new work on: OpenAI shuts the gpt-4o-transcribe family down on 2027-02-26.

Quick start

Up and running in under two minutes.

1
Create an API key
Sign up and grab a key from the dashboard — $0.50 free credit on the free tier, which covers GPT-4o mini Transcribe. No card required.
Get API key →

Make your first request

Drop in your key and send a chat completion — fully OpenAI-compatible.

curl https://kymaapi.com/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o-mini-transcribe-2025-12-15",
    "messages": [
      {"role": "user", "content": "Explain prompt caching in one paragraph."}
    ]
  }'

Stream responses

Add "stream": true to receive tokens as they arrive.

curl https://kymaapi.com/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o-mini-transcribe-2025-12-15",
    "stream": true,
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

FAQ

Common questions about this model.

How much does GPT-4o mini Transcribe cost?

$0.00405 per min. Per minute of audio processed. Min billable: 1 minute.

How do I use GPT-4o mini Transcribe?

Kyma is OpenAI-compatible: point your SDK's base URL at https://kymaapi.com/v1, use your Kyma API key, and set the model to gpt-4o-mini-transcribe-2025-12-15. Signing up is free and includes $0.50 of credit on the free tier, which covers this model — no card required.

Does this model support structured JSON output?

No, it only returns raw text transcriptions from audio input.

How does Kyma handle request routing for this model?

Every request uses automatic failover, so if a serving path degrades, your call is rerouted without manual intervention.

Can I cache prompts to reduce costs?

No, this model does not support prompt caching.

Is this model being retired?

Yes. OpenAI announced on 2026-08-26 that the gpt-4o-transcribe family shuts down on 2027-02-26, and names gpt-transcribe as the replacement. Kyma keeps serving this id until that date; the catalogue carries the date in the retires_on field so you can plan the move.

Start with $0.50 free credit on the free tier — no card required.Create account →

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