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OpenAI TTS wins on price and billing convenience. ElevenLabs wins on voice realism and control. OpenAI TTS charges $15 to $30 per 1 million characters through the same API key developers already use for GPT models. ElevenLabs charges $206 per 1 million characters on its Multilingual v3 model but delivers the industry’s most realistic voice cloning and emotional range.
What Is OpenAI TTS?
OpenAI TTS is a text-to-speech API that converts written text into natural-sounding audio using OpenAI’s tts-1, tts-1-hd, and gpt-4o-mini-tts models. OpenAI released the original tts-1 and tts-1-hd models in November 2023 and added the more advanced gpt-4o-mini-tts model in 2025, which runs on OpenAI’s multimodal GPT-4o architecture and supports steerable prosody through text prompts.
| Attribute | Value |
|---|---|
| Company | OpenAI |
| Release Year | 2023 (tts-1/tts-1-hd), 2025 (gpt-4o-mini-tts) |
| Pricing | $15 per 1M characters (tts-1), $30 per 1M characters (tts-1-hd), token-based on gpt-4o-mini-tts |
| Voices | 9 (tts-1/tts-1-hd), 13 (gpt-4o-mini-tts) |
| Output Formats | MP3, Opus, AAC, FLAC, WAV, PCM |
| Latency | ~0.5 seconds (tts-1/tts-1-hd) |
| Key Feature | Bundled billing inside the existing OpenAI API account |
OpenAI TTS streams audio in real time and processes up to 4,096 characters per request on tts-1 and tts-1-hd, or 2,000 input tokens on gpt-4o-mini-tts. A developer building a customer support chatbot calls the same API key used for GPT-5.5 text generation to add a spoken response, without signing up for a second vendor.
What Is ElevenLabs?
ElevenLabs is a dedicated AI voice platform that generates speech, clones voices, and dubs audio using its proprietary Multilingual v2 and Multilingual v3 models. ElevenLabs launched in 2022 and built its reputation on voice cloning accuracy and emotional inflection, features that general-purpose AI labs like OpenAI treat as a secondary product line rather than a core focus.
| Attribute | Value |
|---|---|
| Company | ElevenLabs |
| Release Year | 2022 |
| Pricing | $0 to $990 per month across six subscription tiers, plus a separate API-credit system |
| Voices | 900+ in the voice library, plus Instant and Professional Voice Cloning |
| Languages | 70+ (Multilingual v3) |
| Output Quality | Up to 44.1 kHz audio on Pro tier and above |
| Key Feature | Professional Voice Cloning from user-submitted audio samples |
ElevenLabs indexes uploaded voice samples to build a cloned voice profile, then synthesizes new sentences in that voice with matched tone and pacing. An audiobook narrator uploads 3 minutes of source audio and generates a full-length book in the cloned voice without re-recording.
How Do OpenAI TTS and ElevenLabs Compare Feature-by-Feature?
OpenAI TTS matches ElevenLabs on latency and streaming but ElevenLabs leads on voice count, cloning quality, and language coverage. The gap is not close on cloning: OpenAI TTS offers no voice-cloning feature, while ElevenLabs built its entire product around it.
| Feature | OpenAI TTS | ElevenLabs |
|---|---|---|
| Voice cloning | Not available | Instant and Professional Voice Cloning |
| Preset voices | 9-13 | 900+ |
| Max languages | Multiple (unspecified count) | 70+ |
| Streaming latency | ~0.5 seconds | Sub-second on Flash model |
| Highest audio quality | Standard MP3/WAV output | 44.1 kHz (Pro tier and above) |
| Billing account | Same as OpenAI API/ChatGPT | Separate ElevenLabs account |
| Emotional/prosody control | Steerable via text prompts (gpt-4o-mini-tts only) | Native emotion tags across models |
For a deeper breakdown of ElevenLabs’ voice cloning workflow, read our ElevenLabs Review: Is It Still the Best AI Voice Generator in 2026?
How Much Does OpenAI TTS Cost Compared to ElevenLabs?
OpenAI TTS costs $15 to $30 per 1 million characters. ElevenLabs costs $103 to $206 per 1 million characters on its premium models, or $5 to $990 per month across subscription tiers. OpenAI TTS bills per character with no separate subscription; ElevenLabs requires a monthly plan before any character-based usage begins.
| Provider | Tier/Model | Price |
|---|---|---|
| OpenAI TTS | tts-1 (standard) | $15 / 1M characters |
| OpenAI TTS | tts-1-hd | $30 / 1M characters |
| OpenAI TTS | gpt-4o-mini-tts | Token-based pricing |
| ElevenLabs | Free | $0/month, 10,000 credits |
| ElevenLabs | Starter | $6/month, 30,000 credits |
| ElevenLabs | Creator | $22/month, 121,000 credits |
| ElevenLabs | Pro | $99/month, 600,000 credits |
| ElevenLabs | Scale | $299/month, 1,800,000 credits |
| ElevenLabs | Business | $990/month, 6,000,000 credits |
| ElevenLabs | Flash v2.5 (per-character API rate) | ~$103 / 1M characters |
| ElevenLabs | Multilingual v3 (per-character API rate) | ~$206 / 1M characters |
According to ElevenLabs’ official pricing page, one text character consumes one credit on the Multilingual v2 model, and only Starter tier and above unlock commercial usage rights. According to OpenAI’s published API pricing, gpt-4o-mini-tts bills per input and output token rather than per character, which changes the calculation for longer scripts with heavy punctuation or SSML tags.
For a full monthly cost simulation across use cases, see our OpenAI TTS API Review: Features, Pricing, and Performance
Should You Choose OpenAI TTS or ElevenLabs?
Choose OpenAI TTS for high-volume, budget-constrained, or developer-convenience use cases. Choose ElevenLabs for voice cloning, emotional realism, or brand-specific custom voices.
Choose OpenAI TTS if:
- Bill voice generation through the same account already running GPT-5.5 or GPT-4.1 workloads.
- Process more than 1 million characters per month on a fixed budget.
- Deploy a voice assistant that prioritizes sub-second latency over vocal nuance.
- Skip voice cloning entirely and rely on preset voices.
- Ship a minimum viable product fast without evaluating a second vendor’s dashboard.
Choose ElevenLabs if:
- Clone a specific human voice from 3 minutes or more of source audio.
- Produce audiobooks, podcasts, or dubbed video requiring emotional inflection across 70+ languages.
- Need 44.1 kHz studio-grade output for professional distribution.
- Require commercial licensing tied to a specific cloned brand voice.
- Accept a higher per-character cost in exchange for measurably higher voice realism.
Which Tool Wins on Voice Quality?
ElevenLabs wins on voice quality. Its Multilingual v3 model remains the highest-rated option for realism across 70-plus languages, based on third-party TTS pricing and quality comparisons published in 2026. OpenAI TTS produces clear, intelligible speech suitable for narration and voice assistants, but neither tts-1, tts-1-hd, nor gpt-4o-mini-tts matches ElevenLabs on emotional range or voice-cloning fidelity, since OpenAI does not offer a cloning feature at all.
Independent 2026 TTS pricing comparisons rank ElevenLabs’ Multilingual v3 as the realism benchmark against which cheaper competitors like Inworld TTS-1.5 Max and Deepgram Aura-2 are measured, while positioning OpenAI TTS primarily as a cost-efficient option for high-volume applications rather than a quality leader.
Who Should Use OpenAI TTS vs ElevenLabs?
Solo developers and indie SaaS builders integrating voice into an existing OpenAI-powered app should use OpenAI TTS. Podcasters, audiobook producers, and brands needing a custom cloned voice should use ElevenLabs.
- Indie developers building chatbots or voice assistants: OpenAI TTS reduces vendor count and keeps billing inside one dashboard.
- Enterprise teams running high-volume IVR or accessibility narration: OpenAI TTS at $15-30 per 1M characters cuts cost at scale.
- Podcasters and YouTubers cloning their own voice: ElevenLabs’ Professional Voice Cloning on the Creator plan ($22/month) fits recurring content production.
- Audiobook publishers: ElevenLabs’ Multilingual v3 model delivers publication-grade narration across 70+ languages.
- Localization teams dubbing video into multiple languages: ElevenLabs’ language coverage and emotional tagging outperform OpenAI TTS’s narrower voice set.
What Are the Best Alternatives to OpenAI TTS and ElevenLabs?
- Inworld TTS-1.5 Max: Priced at $10 per 1M characters and ranked the top 2026 quality-per-dollar option, undercutting both OpenAI TTS and ElevenLabs on cost.
- Deepgram Aura-2: Built for real-time voice agents with sub-90ms latency at $30 per 1M characters, the fastest option of the three.
- Amazon Polly: Runs standard narration at roughly $4 per 1M characters, the cheapest option for basic, non-cloned voice output.
Frequently Asked Questions
Is OpenAI TTS cheaper than ElevenLabs?
Yes. OpenAI TTS costs $15 to $30 per 1 million characters, compared to $103 to $206 per 1 million characters for ElevenLabs’ Flash and Multilingual v3 models respectively.
Does OpenAI TTS support voice cloning?
No. OpenAI TTS offers 9 to 13 preset voices with no cloning feature, while ElevenLabs offers Instant and Professional Voice Cloning starting on its Creator plan at $22 per month.
Which tool has lower latency?
OpenAI TTS runs at approximately 0.5 seconds of latency on tts-1 and tts-1-hd. ElevenLabs’ Flash model targets sub-second latency for real-time conversational use, making the two comparable for most live applications.
Can I use ElevenLabs for free?
Yes. ElevenLabs’ Free plan includes 10,000 credits per month, equal to roughly 10 minutes of speech, but the plan excludes commercial usage rights and requires attribution.
The Verdict
OpenAI TTS delivers the lowest cost per character and the simplest billing path for anyone already inside the OpenAI ecosystem. ElevenLabs delivers the highest voice realism and the only viable path to professional voice cloning. Teams optimizing for cost and integration speed select OpenAI TTS; teams optimizing for voice quality and brand-specific cloned voices select ElevenLabs.