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OpenAI TTS Review

Simple usage-based TTS inside a general AI platform

Among the 10 text-to-speech tools we track, OpenAI TTS has the 4th-cheapest fast-model rate.

See pricing

Facts verified Jul 20, 2026Try OpenAI TTS →

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What we know about OpenAI TTS

OpenAI TTS is a text-to-speech apis platform: simple usage-based TTS inside a general AI platform. This profile tracks every OpenAI TTS fact we have verified, each linked to a primary source and dated.

OpenAI TTS does not publish a public per-minute rate we have been able to verify, so the price figure here stays blank until we can confirm one. We would rather show nothing than a guessed number; if you have a current OpenAI TTS quote, it is the fastest way for us to close that gap.

On capabilities, OpenAI TTS covers streaming audio output, realtime websocket api, emotion / style controls, and soc 2 type ii, and does not offer instant voice cloning and professional voice cloning. Each of those is verified against OpenAI TTS's own docs or dashboard, not marketing copy.

For compliance, with OpenAI TTS: SOC 2 Type II is in place. If you are in a regulated space, confirm the current posture with OpenAI TTS before you commit, since these change plan by plan.

Placed against the 10 text-to-speech tools we track, OpenAI TTS's strongest showing is the 4th-cheapest fast-model rate, while it trails at 13th on stock voices - a spread worth weighing against your own priorities.

In total we track 15 verified facts for OpenAI TTS today, each linking the primary source it came from so you can check our work - and vendor claims we have not measured ourselves are labeled as such on the OpenAI TTS fact sheet below.

Reviewed by vsref Editorialfacts verified Jul 20, 2026Methodology →

OpenAI TTS pricing

Usage-priced at $30 per 1M characters (≈ $0.0285 per audio-minute), verified Jul 20, 2026 (source).

OpenAI TTS cost at monthly volume tiers
Monthly volume$ / 1M chars$ / audio-minMonthly bill
200K chars/moHobby project$30$0.0285$6
2M chars/moProduct feature$30$0.0285$60
20M chars/moAt scale$30$0.0285$600

Effective rates from published pricing; subscription plans resolve to plan fee plus overage. ~950 characters ≈ 1 audio minute. How we compute costs →

Fact sheet

Pricing
Pricing facts
Price per 1M characters (flagship model)30 $/1M charsJul 20
Price per 1M characters (fast model)15 $/1M charsJul 20
Pricing modelusageJul 20
Capabilities
Capabilities facts
Streaming audio output✓ YesJul 20
Realtime websocket API✓ YesJul 20
Voice library size13 built-in voicesJul 20
Instant voice cloning✗ NoJul 20
Professional voice cloning✗ Not offered.Jul 20
Emotion / style controls✓ YesJul 20
Compliance & trust
Compliance & trust facts
Voice cloning consent requirementsn/a - no cloningJul 20
SOC 2 Type II✓ YesJul 20
Model weights licenseclosedJul 20
Build experience
Build experience facts
Official SDKsPython, JavaScript/TypeScript (official client libraries)Jul 20
Output formatsMP3 (default), Opus, AAC, FLAC, WAV, PCMJul 20
Max input per request4096Jul 20

Considering a switch? Best OpenAI TTS alternatives →

STT in this stack

Text-to-speech is half of a voice pipeline: the other half is the speech-to-text that listens. Compare transcription engines on accuracy, streaming latency, and per-minute price: Deepgram, AssemblyAI, GPT-4o Transcribe, or the full speech-to-text comparison →

Voice agents in this stack

The same vendor runs this engine as a full agent platform: see OpenAI Realtime API for the end-to-end per-minute cost. Or compare the platforms builders wire OpenAI TTS into: Pipecat, Twilio ConversationRelay, or the full voice-agent comparison →

Distribute it

Most OpenAI TTS voiceover ends up in short-form video, and publishing that video across TikTok, YouTube, and Instagram is a scheduling problem with real per-channel pricing. Compare the schedulers creators actually run: Buffer, Postiz, Mixpost, or the social media scheduling platforms compared →

Avatar video in this stack

A cloned or bring-your-own OpenAI TTS voice does not have to stay audio-only: AI avatar video platforms lip-sync it onto a talking avatar for finished video. Compare the platforms: HeyGen, Synthesia, Hedra, or the full avatar-video comparison →

OpenAI TTS head-to-head

OpenAI TTS vs ElevenLabs →won 1 · lost 4 · tied 1
AudiobookswonContent CreatorslostDeveloperslostDubbinglostSelf-HostedtieVoice Agentslost
OpenAI TTS vs Cartesia →won 1 · lost 4 · tied 0
AudiobookswonContent CreatorslostDubbinglostSelf-HostedlostVoice Agentslost
OpenAI TTS vs Google Cloud TTS →won 1 · lost 3 · tied 1
AudiobookslostContent CreatorslostDubbinglostSelf-HostedtieVoice Agentswon
OpenAI TTS vs Azure Speech →won 0 · lost 5 · tied 0
Content CreatorslostDeveloperslostDubbinglostSelf-HostedlostVoice Agentslost
OpenAI TTS vs Voxtral TTS →won 3 · lost 3 · tied 0
AudiobookslostContent CreatorswonDeveloperswonDubbinglostSelf-HostedlostVoice Agentswon