# OpenAI TTS Review

> OpenAI TTS review: Simple usage-based TTS inside a general AI platform. Verified pricing, features, and the strongest alternatives in Text-to-speech APIs.

![OpenAI TTS logo](https://www.versusref.com/logos/openai-tts.png)

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, 2026

## 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.

## OpenAI TTS pricing

Usage-priced at $30 per 1M characters (≈ $0.0285 per audio-minute), verified Jul 20, 2026 ([source](https://developers.openai.com/api/docs/pricing)).

| Monthly volume | $ / 1M chars | $ / audio-min | Monthly bill |
| --- | --- | --- | --- |
| 200K chars/mo | $30 | $0.0285 | $6 |
| 2M chars/mo | $30 | $0.0285 | $60 |
| 20M chars/mo | $30 | $0.0285 | $600 |

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

## Fact sheet

### Pricing

| Fact | Value | Verified | Source |
| --- | --- | --- | --- |
| Price per 1M characters (flagship model) | 30 $/1M chars | Jul 20 | [source](https://developers.openai.com/api/docs/pricing) |
| Price per 1M characters (fast model) | 15 $/1M chars | Jul 20 | [source](https://developers.openai.com/api/docs/pricing) |
| Pricing model | usage | Jul 20 | [source](https://developers.openai.com/api/docs/pricing) |

### Capabilities

| Fact | Value | Verified | Source |
| --- | --- | --- | --- |
| Streaming audio output | ✓  Yes | Jul 20 | [source](https://developers.openai.com/api/docs/guides/text-to-speech) |
| Realtime websocket API | ✓  Yes | Jul 20 | [source](https://developers.openai.com/api/docs/pricing) |
| Voice library size | 13 built-in voices | Jul 20 | [source](https://developers.openai.com/api/docs/guides/text-to-speech) |
| Instant voice cloning | ✗  No | Jul 20 | [source](https://developers.openai.com/api/docs/guides/text-to-speech) |
| Professional voice cloning | ✗  Not offered. | Jul 20 | [source](https://developers.openai.com/api/docs/guides/text-to-speech) |
| Emotion / style controls | ✓  Yes | Jul 20 | [source](https://developers.openai.com/api/docs/guides/text-to-speech) |

### Compliance & trust

| Fact | Value | Verified | Source |
| --- | --- | --- | --- |
| Voice cloning consent requirements | n/a - no cloning | Jul 20 | [source](https://developers.openai.com/api/docs/guides/text-to-speech) |
| SOC 2 Type II | ✓  Yes | Jul 20 | [source](https://trust.openai.com/) |
| Model weights license | closed | Jul 20 | [source](https://developers.openai.com/api/docs/pricing) |

### Build experience

| Fact | Value | Verified | Source |
| --- | --- | --- | --- |
| Official SDKs | Python, JavaScript/TypeScript (official client libraries) | Jul 20 | [source](https://developers.openai.com/api/docs/guides/text-to-speech) |
| Output formats | MP3 (default), Opus, AAC, FLAC, WAV, PCM | Jul 20 | [source](https://developers.openai.com/api/docs/guides/text-to-speech) |
| Max input per request | 4096 | Jul 20 | [source](https://developers.openai.com/api/docs/api-reference/audio/createSpeech) |

## OpenAI TTS head-to-head

| Comparison | Record | Per use case |
| --- | --- | --- |
| [OpenAI TTS vs ElevenLabs](https://www.versusref.com/tts/elevenlabs-vs-openai-tts/) | won 1 · lost 4 · tied 1 | Audiobooks: won; Content Creators: lost; Developers: lost; Dubbing: lost; Self-Hosted: tie; Voice Agents: lost |
| [OpenAI TTS vs Cartesia](https://www.versusref.com/tts/cartesia-vs-openai-tts/) | won 1 · lost 4 · tied 0 | Audiobooks: won; Content Creators: lost; Dubbing: lost; Self-Hosted: lost; Voice Agents: lost |
| [OpenAI TTS vs Google Cloud TTS](https://www.versusref.com/tts/google-tts-vs-openai-tts/) | won 1 · lost 3 · tied 1 | Audiobooks: lost; Content Creators: lost; Dubbing: lost; Self-Hosted: tie; Voice Agents: won |
| [OpenAI TTS vs Azure Speech](https://www.versusref.com/tts/azure-speech-vs-openai-tts/) | won 0 · lost 5 · tied 0 | Content Creators: lost; Developers: lost; Dubbing: lost; Self-Hosted: lost; Voice Agents: lost |
| [OpenAI TTS vs Voxtral TTS](https://www.versusref.com/tts/openai-tts-vs-voxtral-tts/) | won 3 · lost 3 · tied 0 | Audiobooks: lost; Content Creators: won; Developers: won; Dubbing: lost; Self-Hosted: lost; Voice Agents: won |

Source: https://www.versusref.com/tts/tools/openai-tts/