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Oracle Cloud Infrastructure Speech

oracle.com

Free plan WebLinuxAPI
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Spec score 9.0 #17 of 233 in Text-to-speech tools

What it is

Oracle Cloud Infrastructure Speech transcribes submitted audio to text and synthesizes speech from text. Access is available through the OCI Console, REST APIs, CLIs, SDKs, and OCI Data Science notebook sessions. File-based asynchronous transcription is supported; real-time transcription is in limited availability. Transcription output defaults to JSON, with SRT also available at no additional cost. Tools include profanity filtering, punctuation, diarization, and word-level and full-transcription confidence scores. Supported audio includes single-channel 16-bit PCM WAV at 16 kHz, along with AAC, AC3, AMR, AU, FLAC, M4A, MKV, MP3, MP4, OGA, OGG, and WEBM. Oracle lists nine languages and says automatic language detection is not currently available. The first five transcription hours per month per tenancy are free; additional transcription or voice-synthesis hours cost $0.50 per hour, with usage aggregated in seconds. There are no setup charges, minimum commitments, or hardware requirements. Oracle says it retains no information from submitted files. Audio quality, accents, background noise, language switching, and simultaneous speakers can affect transcription quality.

Spec sheet

What it does
OCI Speech transcribes audio to text asynchronously or in real time and synthesizes speech from text.Read 12 Oct 2026 · oracle.com
Platforms
web,apiRead 20 Sep 2026 · oracle.com
Free plan
YesRead 20 Sep 2026 · oracle.com
Privacy
Oracle says it only transcribes submitted content and keeps no information from the file.Read 12 Oct 2026 · oracle.com
Support
Oracle’s Speech documentation links to support requests and service-request creation.Read 12 Oct 2026 · docs.oracle.com
Access
The service is available through the OCI Console, REST APIs, CLIs, SDKs, and OCI Data Science notebook sessions.Read 12 Oct 2026 · oracle.com
API access
YesRead 20 Sep 2026 · oracle.com
Audio formats
Supported formats include single-channel 16-bit PCM WAV at 16 kHz and AAC, AC3, AMR, AU, FLAC, M4A, MKV, MP3, MP4, OGA, OGG, and WEBM.Read 12 Oct 2026 · oracle.com
Audio quality
Oracle states transcription quality depends on input audio quality and may be affected by accents, background noise, language switching, and simultaneous speakers.Read 12 Oct 2026 · oracle.com
Commitment
OCI Speech has no setup charges, minimum service commitments, or hardware requirement.Read 12 Oct 2026 · oracle.com
Export formats
MP3,PCM,OGG,JSONRead 20 Sep 2026 · oracle.com
Language detection
Automatic language detection is not currently available, according to Oracle’s FAQ.Read 12 Oct 2026 · oracle.com
Languages
9Read 20 Sep 2026 · oracle.com
Languages
Pretrained models support English, Spanish, Portuguese, German, French, Italian, and Hindi; asynchronous file transcription with the OpenAI Whisper model supports 57+ languages.Read 12 Oct 2026 · oracle.com
Maximum input
10000Read 20 Sep 2026 · oracle.com
Output formats
Transcription output is JSON by default, with SRT available at no additional cost.Read 12 Oct 2026 · oracle.com
Pricing
Oracle charges $0.50 per transcription or voice-synthesis hour, measures aggregated usage in seconds, and includes five free transcription hours each month per tenancy.Read 12 Oct 2026 · oracle.com
Transcription modes
File-based asynchronous transcription is supported, while real-time transcription is in limited availability.Read 12 Oct 2026 · oracle.com
Transcription tools
The service offers profanity filtering, word-level and full-transcription confidence scores, punctuation, and diarization.Read 12 Oct 2026 · oracle.com
Use cases
Oracle describes use for customer-call transcription, subtitling, and generating searchable metadata for media archives.Read 12 Oct 2026 · docs.oracle.com

Plans and prices

First 5 Transcription Hours Free First 5 transcription hours per month 5 transcription hours per month Read 20 Sep 2026 · oracle.com
Greater than 5 Transcription Hours Price not published Pay-as-you-go usage Read 20 Sep 2026 · oracle.com
Greater than 5 Transcription Hours Priced on request Pay-as-you-go usage Read 20 Sep 2026 · oracle.com
OCI Speech $0.50 a month $0.50 per transcription hour after 5 free hours per month per tenancy; usage is aggregated by seconds 5 free transcription hours/month per tenancy · $0.50 per additional transcription hour Read 12 Oct 2026 · oracle.com

Every Oracle Cloud Infrastructure Speech plan and price →

Strong points and limits

Strong points

  • Five transcription hours per month per tenancy are free
  • Supports asynchronous file transcription
  • SRT is available at no additional cost
  • No setup charge or minimum commitment
  • Offers confidence scores and diarization

Limits

  • Real-time transcription is in limited availability
  • Automatic language detection is unavailable
  • Additional use costs $0.50 per hour
  • Audio conditions can affect transcription quality

Who it suits

It suits users building transcription or speech-synthesis workflows through OCI interfaces or APIs. Call transcription, subtitling, and searchable media metadata are among the use cases Oracle describes.

Verdict

OCI Speech offers transcription and speech synthesis with API and console access, plus several transcription controls. Account for the five-hour monthly allowance, usage charge, and audio-quality dependencies when assessing fit.

Where Specifiction places it

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