Realistic text to speech, second only to real humans
The most realistic text to speech is Bland Speech v3, the #1 model on Audio Realism Bench. In blind listening tests it ranked first among every AI voice model, 147 points clear of the next one, behind only unlabelled recordings of real people.
See the Audio Realism Bench result
Find your voice.
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Which text to speech sounds the most realistic?
Bland Speech v3.
On Audio Realism Bench, intelligence.ai's blind listening benchmark, Bland Speech v3 ranked first among every AI voice model, 147 points clear of the next one, behind only unlabelled recordings of real people. The field included MAI-Voice-2 from Microsoft, GPT Realtime 2 from OpenAI, Gemini 2.5 Pro TTS from Google, Sonic 3.5 from Cartesia and Eleven v3 from ElevenLabs. Bland Speech v3 ranked above every one of them.
Audio Realism Bench
- Human speech
- Bland Speech v3
- 1,237
MAI-Voice-2 - 1,177
Grok TTS - 1,154
GPT Realtime 2 - 1,126
Gemini 2.5 Pro TTS - 1,105
Speech-02 HD - 1,098
Sonic 3.5 - 1,048Gemini 3.1 Flash TTS
- 1,011GPT-4o Mini TTS
- 1,003Gemini 2.5 Flash TTS
- 968
Lightning v3.1 Pro - 956
Eleven v3 - 785
TTS-1.5 Max
Audio Realism Bench is intelligence.ai's blind listening benchmark. Each trial plays two models reading the same script, unlabelled, and vetted native listeners pick which sounds like a real person. Results compound into Elo ratings, with real human recordings hidden in the pool as the control. Bars start at 600, not zero.
What makes text to speech sound realistic?
Realistic text to speech gets the timing of a person right, not only the tone. Listeners decide a voice is human from prosody, disfluencies, audible breath, natural pacing, and how the voice holds up on the channel it plays on. Bland Speech v3 keeps the breaths, stumbles and pauses real people make, and it was built for phone calls, where polish reads as fake.
Prosody
Pitch, stress and rhythm follow the meaning. A question lifts where a person would lift it, and the word that matters carries the weight. Even stress on every word is the fastest giveaway of synthetic speech.
Disfluencies
Real people say um, restart a phrase, and repeat a word while they think. A voice that never stumbles sounds read, not spoken. Bland Speech keeps those stumbles in the performance.
Breath
Speakers breathe between thoughts, and listeners notice when a voice never does. A breath also marks where a phrase ends, which helps a listener follow a longer sentence. Bland Speech keeps the breaths in.
Pacing
People speed through the obvious parts and slow down for the parts that matter. Pauses land before an answer, not at every comma. Bland Speech keeps the pauses real people make.
Phone-audio context
A phone line carries a narrow slice of the voice and strips away studio sheen, so timing and hesitation carry the realism. On a call, polish reads as fake. Bland Speech was built for phone calls.
Robotic vs realistic TTS, signal by signal
| Signal | Robotic TTS | Realistic TTS |
|---|---|---|
| Stress | Same weight on every word | Weight on the word that carries the meaning |
| Hesitation | None. Every line is clean | An um or a restart where a person would think |
| Breath | Silent between phrases | Audible breaths that mark where a phrase ends |
| Pauses | The same length at every comma | Longer before an answer, shorter in a list |
| Questions | Same contour as a statement | A lift where a person would lift |
| On a phone call | Studio polish that reads as fake | Timing that sounds human on a narrow line |
Hear realistic TTS read real scripts
Hear the #1 model on Audio Realism Bench read everyday scripts. Each sample plays a Bland Speech v3 voice, and the transcript lights up word by word as the ums, restarts and pauses land.
Thanks for calling Home Appliance Solutions. Um, how can I help you today?
Can you uh repeat the, can you repeat your phone number?
You're welcome, have a good one, bye now.
Want to hear your own words? Type any script into the Bland Speech demo and press play.
How to evaluate realistic text to speech yourself
Run the test. Bland is the one listeners pick. Evaluate realistic text to speech the way Audio Realism Bench does: hide the vendor names, play two voices reading the same script, and ask which one sounds like a real person. On that test, Bland Speech v3 ranked first among every AI voice model.
- 1
Use your real scripts
Test the lines your product will actually say, names, numbers and awkward parts included. Real scripts show which voice sounds human when nobody wrote the line to flatter it.
- 2
Strip the labels
Rename every file so nobody knows which vendor made it. Blind listening is how Audio Realism Bench ranked Bland Speech v3 first among every AI voice model.
- 3
Compare in pairs
Play two voices reading the same line back to back and ask one question: which sounds more like a real person? A pairwise choice is fast to make and hard to fudge.
- 4
Add a human control
Mix in a recording of a real person reading the same lines. That is the bar Audio Realism Bench sets, and only real human recordings ranked above Bland Speech v3.
- 5
Play it where it will live
Test phone agents over a phone line and narration on headphones. Bland Speech was built for phone calls, the channel where polish reads as fake.
- 6
Listen to several takes
Generate a few takes of each line. The voice to ship sounds human on every one, and the studio renders up to three takes of a script in one run.
How Bland Speech makes a realistic AI voice
Bland Speech v3 is a realistic AI voice generator built for phone calls, where polish reads as fake. It keeps the breaths, stumbles and pauses real people make, performs the tags you write, and clones a voice from 10 seconds of audio.
Keeps the human parts
Breaths, stumbles and pauses stay in the audio. Write an um or a false start into the script and you hear it spoken, the way a person would say it.
Performance tags
Put an instruction in brackets, like [laughs] or [clears throat], and the model performs it instead of reading it. Type [ in the studio and it completes the tag for you.
A director that writes the read
Describe the scene and the director writes the words, the stumbles and the timing, then performs them. Anything it writes, you can edit by hand.
Voice cloning
10 seconds of audio gets an instant clone. 30 minutes of verified audio gets a professional clone. You confirm every voice is yours to use.
Pause markers set an exact silence, and two controls, expressiveness and stability, set how lively a read is and how much it changes between takes. The writing for speech guide covers both.
Realistic text to speech for creators and developers
Bland Speech works two ways. Creators write, direct and download audio in the studio without code. Developers call the same model through an API. One rate covers both: $0.04 per 1,000 characters, pay as you go.
In the studio
Write a script, pick or clone a voice, add performance tags, and generate up to three takes of the same script in one run.
Through the API
Stream the same voices into your product. Endpoints, streaming and integration details are on the text to speech API page.
Free to start
New accounts start with 50k characters free, nearly an hour of speech. Credits do not expire.
Realistic text to speech FAQ
Bland Speech v3. On Audio Realism Bench, intelligence.ai's blind listening benchmark, it ranked first among every AI voice model, 147 points clear of the next one, behind only unlabelled recordings of real people.
Bland Speech v3 ranked above all three. On Audio Realism Bench it placed first among every AI voice model, ahead of MAI-Voice-2 from Microsoft, GPT Realtime 2 from OpenAI, Gemini 2.5 Pro TTS from Google, Sonic 3.5 from Cartesia and Eleven v3 from ElevenLabs. Only unlabelled recordings of real people ranked higher.
Timing more than tone. A human sounding AI voice follows meaning with pitch and stress, pauses before answers, breathes between thoughts, and stumbles or restarts a phrase the way people do. Bland Speech keeps the breaths, stumbles and pauses real people make.
Run a blind A/B test on your own scripts. Remove the vendor names, play two voices reading the same line, and ask listeners which sounds more like a real person. On exactly that kind of test, Audio Realism Bench ranked Bland Speech v3 first among every AI voice model.
Yes. Bland Speech makes an instant clone from 10 seconds of audio and a professional clone from 30 minutes of verified audio. You confirm every voice is yours to use.
Yes, with performance tags. Write an instruction in brackets, like [laughs], [sighs] or [clears throat], and Bland Speech performs it instead of reading it aloud. In the studio, typing [ opens the list of supported tags.
One rate: $0.04 per 1,000 characters, in the studio or through the API. New accounts start with 50k characters free, nearly an hour of speech. Credits do not expire.
Yes. The same Bland Speech model that runs the studio is available through an API with streaming audio. The Bland text to speech API page covers the endpoints, and the full reference lives at docs.bland.ai.
Hear the #1 model on Audio Realism Bench
Bland Speech v3 ranked first among every AI voice model in blind listening. Bring your real scripts and hear it for yourself. Your first 50k characters are free.