Captio AI
🦻 Accessibility + 💻 Productivity App

Thai live captions and productivity tool for job interviews

For deaf and hard of hearing people.

Download for free

Download on theApp Store
Captio AI app showing live captions

Download for free

Download on theApp Store
Use Cases

Every situation covered

Designed for the real moments that matter — not just quiet controlled environments.

👔In-person interviews

In a Bangkok, Chiang Mai, or Phuket office — an interviewer speaking Thai at professional pace. Captio AI captions every question in real time so you read the full sentence before responding.

💻Video interviews

Video interviews on Zoom or Google Meet — standard for first rounds at Thai companies. Put the call on speaker and follow every question in real time whatever the regional accent.

📞Phone screens and initial calls

The initial HR screening call in Thai — fast, formal, with polite particles and register vocabulary. Captio AI captions in real time so compressed audio does not cost you the interview.

👥Panel interviews

Panel interviews at large Thai companies, government agencies, or multinationals. Captio AI follows each panelist in real time even when questions come quickly in succession.

🌍International and foreign-language interviews

For roles at international firms where the interview shifts between Thai and English. Live Translator handles both languages in the same session without manual switching.

🎯Assessment centres

Structured competency assessments and group exercises — used at major Thai banks and corporate employers. Captio AI covers all facilitator speech and group interaction.

Performance

Most accurate and fastest models

Thai
90.5%

character accuracy

independent benchmark, 2025

< 200ms
you speak
captions

real-time captions

first word appears as you speak

Download for free

Download on theApp Store
Captio AI in everyday use
Why Captio AI

Built for the room where a missed word has real consequences

Read the full question before you answer

Every word appears on screen as the interviewer speaks. You read the question completely before responding — nothing guessed, nothing reconstructed.

Works in person and on any call format

In-person interviews, video calls, phone screens. Place the phone on the table or point it toward the audio — Captio AI handles every format.

Discreet by design

The app runs quietly on your phone. Place it on the table or hold it naturally. No explanation needed, no drawing attention to the accommodation.

No asking for repeats

Asking an interviewer to repeat a question signals uncertainty. Captio AI means you never need to — you read it in real time and answer with confidence.

Any language

For international roles, multilingual panels, or interviews conducted in a second language. Live Translator captions and translates in real time so language is never the barrier.

Private by default

Interview conversations are sensitive. Captio AI processes audio in real time and discards it immediately — nothing is stored, nothing is shared.

Thai

Why Thai is hard to understand

Five lexical tones

  • The same syllable lip shape means five different things depending on pitch
  • Thai has five lexical tones — mid, low, falling, high, and rising — that change the meaning of every syllable. These tones are produced by pitch contours in the larynx, not by lip movement. In a Bangkok interview room, a deaf candidate watching the interviewer's lips sees one syllable shape where five different words could be intended. Thai lip-reading research confirms that tonal distinctions are entirely invisible.

Three consonant classes

  • The class of a consonant determines its tone — but class is invisible on the lips
  • Thai groups all its consonants into three classes (high, mid, low), and the class of the initial consonant of a syllable determines which tone pattern it takes. The same vowel and consonant combination can take different tones depending on the class of the initial consonant — an invisible grammatical feature that makes syllable interpretation by lip-reading doubly ambiguous.

Formal register

  • Thai corporate interviews use polite-register vocabulary with royal/formal terms
  • Thai has a formal polite register that adds polite particles (ครับ, ค่ะ) and uses royal vocabulary for body parts, actions, and concepts in highly formal settings. In a Bangkok corporate interview, the interviewer uses formal register consistently. A deaf candidate whose visual vocabulary comes from everyday informal Thai may not recognise polite register forms.

Bangkok vs regional accents

  • Standard Bangkok Thai differs from Northern, Northeastern, and Southern varieties
  • Standard Thai (Bangkok) is the prestige interview variety, but interviewers from Chiang Mai (Northern), Khon Kaen (Northeastern/Isan), or Hat Yai (Southern) carry regional phonological influence. Isan speakers' Thai has Lao-influenced tones. Southern Thai has different initial consonants. A deaf candidate trained on Bangkok Thai faces different lip shapes from regional interviewers.

Communication barriers confirmed

  • PubMed research documents deaf Thais failing to understand formal spoken Thai
  • A 2024 PubMed study on communication between Thai pharmacists and deaf people found that when Thai Sign Language was not used, deaf people frequently failed to understand the conversation — through lip-reading, written notes, or technology. The formal spoken register used in pharmacies mirrors the professional register used in job interviews: the same barrier applies.

Download for free

Download on theApp Store
The Challenge

392,000 Thais with hearing disabilities — and only 8% of all disabled people in competitive employment

Thailand's disability data records 392,359 people with hearing or communication disabilities — 18.73% of all registered disabled people, making it the second most common disability type after physical impairments. Overall, around 24% of Thais with disabilities above 15 report having employment, and only 8% are in competitive labour markets. The National Agency on Disability of Thailand (NADT) reports on disability situation annually, tracking these persistent employment gaps. The Persons with Disabilities Empowerment Act (2007) established rights to sign language interpreters and legal assistance, but coverage at the interview stage is not systematically provided.

UNDP Thailand's 2023 study on promoting an inclusive workplace found that while large multinationals in Bangkok had made progress on disability inclusion, the majority of Thai employers — particularly SMEs and government agencies — had low awareness of accommodation obligations and rarely made structural changes to interview processes. A deaf candidate attending a job interview at a Bangkok bank, a state enterprise, or a hospitality company faces a spoken Thai interview format with no standard visual accommodation.

The phonological demands of Thai compound the structural barrier. Five tones make lip-reading Thai syllables systematically ambiguous — the PubMed pharmacy study published in 2024 confirmed that formal spoken Thai is frequently not understood by deaf Thais even when they are trying to lip-read or use other visual strategies. A deaf candidate in a Bangkok interview is navigating five-tone ambiguity across every syllable at professional speech rates. Captio AI processes audio in real time and delivers every Thai syllable with its tonal content resolved — no guessing, no reconstruction required.

Download for free

Download on theApp Store
Privacy

What you hear stays with you.

Gone the moment it ends

Captio AI processes your audio in real time and discards it immediately. Nothing is recorded. Nothing is kept.

Not a product

Your conversations are not something Captio AI sells, shares, or monetizes — to anyone, for any reason.

Not used to train anything

What you say in a doctor's appointment or a job interview never ends up in a training dataset. Not ours. Not anyone else's.

100% PRIVATE

Private by default

Download on theApp Store
Reviews

People love Captio AI

"Thai tones in a corporate interview — five possible meanings per syllable. I could never resolve them from the interviewer's lips alone. Captio AI gave me every word. I answered every question and got through to the offer."

Nattaya S. 🇹🇭
nattaya.s***@gmail.com
Moderate sensorineural hearing loss, Bangkok

"Northern Thai phonology sounds different from Bangkok Thai. My interviewer was from the capital and I was losing words I thought I knew. Captio AI captured every syllable. I gave the best interview I've had."

Pichit W. 🇹🇭
pichit.w***@gmail.com
Hard of hearing since birth, Chiang Mai

"The bank panel interview was in formal Thai with polite register throughout. Captio AI gave me every polite particle and formal vocabulary word. I answered in the correct register every time."

Supansa K. 🇹🇭
supansa.k***@gmail.com
Sensorineural hearing loss, Bangkok

"The phone screen in Thai was the hardest format. Fast tonal speech over a mobile line. Captio AI captioned every word including the tones resolved from audio. I passed the screen and moved to the panel stage."

Tanakorn P. 🇹🇭
tanakorn.p***@gmail.com
Progressive hearing loss, Bangkok

"Thai tones in a corporate interview — five possible meanings per syllable. I could never resolve them from the interviewer's lips alone. Captio AI gave me every word. I answered every question and got through to the offer."

Nattaya S. 🇹🇭
nattaya.s***@gmail.com
Moderate sensorineural hearing loss, Bangkok

"Northern Thai phonology sounds different from Bangkok Thai. My interviewer was from the capital and I was losing words I thought I knew. Captio AI captured every syllable. I gave the best interview I've had."

Pichit W. 🇹🇭
pichit.w***@gmail.com
Hard of hearing since birth, Chiang Mai

"The bank panel interview was in formal Thai with polite register throughout. Captio AI gave me every polite particle and formal vocabulary word. I answered in the correct register every time."

Supansa K. 🇹🇭
supansa.k***@gmail.com
Sensorineural hearing loss, Bangkok

"The phone screen in Thai was the hardest format. Fast tonal speech over a mobile line. Captio AI captioned every word including the tones resolved from audio. I passed the screen and moved to the panel stage."

Tanakorn P. 🇹🇭
tanakorn.p***@gmail.com
Progressive hearing loss, Bangkok

Download for free

Download on theApp Store
FAQ

Frequently asked questions

Hear every question in Thai.

Captio AI is free to start

Download for free

Download on theApp Store