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Oracle Cloud Infrastructure Speech
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What Oracle Cloud Infrastructure Speech is
Oracle Cloud Infrastructure Speech transcribes audio to text and synthesizes speech from text. Access is provided through the OCI Console, REST APIs, command-line tools, SDKs, and OCI Data Science notebook sessions. File-based asynchronous transcription is supported, while real-time transcription is in limited availability. Oracle lists nine languages, JSON transcription output by default, and SRT at no additional cost. Tools include profanity filtering, punctuation, diarization, and word-level and full-transcription confidence scores. Supported audio includes WAV, AAC, FLAC, M4A, MP3, MP4, OGG, and WEBM formats among others. The first five transcription hours each month per tenancy are free; additional transcription or voice-synthesis usage costs $0.50 an hour, with usage aggregated by seconds. Oracle says it retains no information from submitted files. Automatic language detection is unavailable, and quality can be affected by audio quality, accents, background noise, language switching, and overlapping speakers.
Who it suits
It suits organizations needing transcription, speech synthesis, customer-call records, subtitles, or searchable media metadata. API, console, CLI, SDK, and notebook access support technical and web-based workflows.
What it does well
- Five free transcription hours monthly
- Transcription and speech synthesis
- API, console, CLI, SDK, and notebook access
- Confidence scores, punctuation, profanity filtering, and diarization
- SRT output available at no additional cost
What to know first
- Real-time transcription has limited availability
- Automatic language detection is unavailable
- Quality varies with audio and speaking conditions
- Additional use costs $0.50 an hour
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| First 5 Transcription Hours | First 5 transcription hours per month · 5 transcription hours per month | Free |
| Greater than 5 Transcription Hours | Pay-as-you-go usage | On request |
| Greater than 5 Transcription Hours | Pay-as-you-go usage | On request |
| OCI Speech | $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 | $0.50 a month |
As oracle.com lists them, read 20 Sept 2026. The maker's own page has the final word.
Verdict
OCI Speech provides transcription and speech synthesis with multiple access methods and useful transcription controls. The free monthly allowance can cover initial usage, while heavier workloads should account for the listed hourly charge and audio-quality limits.
Facts from Oracle Cloud Infrastructure Speech's own pages
- Access
- The service is available through the OCI Console, REST APIs, CLIs, SDKs, and OCI Data Science notebook sessions. · oracle.com, 12 Oct 2026
- API access
- Yes · oracle.com, 20 Sept 2026
- 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. · oracle.com, 12 Oct 2026
- Audio quality
- Oracle states transcription quality depends on input audio quality and may be affected by accents, background noise, language switching, and simultaneous speakers. · oracle.com, 12 Oct 2026
- Commitment
- OCI Speech has no setup charges, minimum service commitments, or hardware requirement. · oracle.com, 12 Oct 2026
- Export formats
- MP3,PCM,OGG,JSON · oracle.com, 20 Sept 2026
- Free plan
- Yes · oracle.com, 20 Sept 2026
- Languages
- 9 · oracle.com, 20 Sept 2026
- Language detection
- Automatic language detection is not currently available, according to Oracle’s FAQ. · oracle.com, 12 Oct 2026
- Languages
- Pretrained models support English, Spanish, Portuguese, German, French, Italian, and Hindi; asynchronous file transcription with the OpenAI Whisper model supports 57+ languages. · oracle.com, 12 Oct 2026
- Maximum input
- 10000 · oracle.com, 20 Sept 2026
- Output formats
- Transcription output is JSON by default, with SRT available at no additional cost. · oracle.com, 12 Oct 2026
- Platforms
- web,api · oracle.com, 20 Sept 2026
- 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. · oracle.com, 12 Oct 2026
- Privacy
- Oracle says it only transcribes submitted content and keeps no information from the file. · oracle.com, 12 Oct 2026
- Support
- Oracle’s Speech documentation links to support requests and service-request creation. · docs.oracle.com, 12 Oct 2026
- Transcription modes
- File-based asynchronous transcription is supported, while real-time transcription is in limited availability. · oracle.com, 12 Oct 2026
- Transcription tools
- The service offers profanity filtering, word-level and full-transcription confidence scores, punctuation, and diarization. · oracle.com, 12 Oct 2026
- Use cases
- Oracle describes use for customer-call transcription, subtitling, and generating searchable metadata for media archives. · docs.oracle.com, 12 Oct 2026
- What it does
- OCI Speech transcribes audio to text asynchronously or in real time and synthesizes speech from text. · oracle.com, 12 Oct 2026
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