Hidoba Research

Introducing our new project:

Callable*

Callable is LIVE now!

You can now create your own Callable AI digital twin with your knowledge and sounds like you!

Meet Captcha!

Who is Robot Captcha?

Speaks 10+ languages, primarily English
Highly customizable personality and voice
Natural speech flow* (see demo below)
Realistic gaze and face-tracking
Remote controllable tele-presence
Position options: standing / sitting

Meet the Team!

Captcha's Speech Algorithm

Fastest

Conversational

AI

Some Technical Details:

LLM: Custom, mistral 7B-derived

ASR: Custom, whisper-derived

Endpointing: Custom, patent-pending

TTS: Custom

Hardware: Jetson Orin AGX, everything running locally.

Also Available As:

Edge License

API Calls per hour

Enterprise API subscription

Captcha in the Spotlight!

As featured in...

(Click on the icons to go to links!)

Watch out!
Captcha is coming to your neighborhood!

Captcha was the examiner of mock Abitur oral exams, a first for a robot to do so in Germany! Warm welcome back to Willms Gymnasium, Delmonhorst, April 2026.

Captcha interacting with curious onlookers at Game Changer Zagreb, Oct 2025.

Captcha is on a TV show! Invited as a talk show guest on RTLDirekt, filmed in Zagreb, Croatia. 15 Oct 2025

Captcha on stage at Game Changer Zagreb. 16 Oct 2025

Captcha X Czapek at Geneva Watch Days, promoting their new robot-inspired watch R.U.R., Sep 2025

Captcha back at UN ITU's AI for Good Summit again! And promoting our new platform (stay tuned!) @ Palexpo, Geneva, Switzerland. July 2025.

Captcha giving a speech on AI in Education, at We Make Future, Bologna, Italy. June 2025.

Captcha at We Make Future, Bologna, Italy. June 2025

Captcha at Milan AI WEEK 2025. In collaboration with AI Play. May 2025

Captcha as a debate moderator at WILMS, a "gymnasium" (German high school) in Delmenhorst, Germany. 17 Dec, 2024.

High school students learning how to change the prompt of Captcha. Delmenhorst, Germany. 17 Dec 2024.

Soul-searching with Gen-Z at Mass. Ave McDonald's, Cambridge MA July 2024

BTS of the livestream with Stephen Wolfram, July 2024

Captcha talking to some curious students at a university campus in Waltham, MA

When your Tinder date just showed up and you are already thinking of excuses to leave...

The Dankest Robot at the Gevena AI For Good Summit 2024 (People from Boston Dynamics appreciated the memes...)

Captcha vs the harshest critics: KIDS. AI For Good Summit, May 2024

David, meet Captcha. Captcha, meet David. Florence, Italy. April 2024.

Captcha attending the World AI Cannes Festival in February 2024. Met two cyberpunk friends!

Captcha visiting the Oculus, his exterior matching with its interiors!

Captcha getting a selfie with a fellow CES attendee!

Captcha being interviewed by a Korean journalist at CES 2024 in Las Vegas.

This might be your first time seeing a robot on the train as a passenger! Captcha taking AmTrak from Boston to New York, January 2024.

Special Customer at 5th Ave McDonald's NYC, Jan 2024

Captcha at the Big Apple. One day he might end up on one of those billboards in Times Square!

Wherever there's Captcha, there's a crowd!

A very meta photo-op for Captcha inside the famous sculpture at MIT! The snow is a plus!

Captcha enjoying his commute like a normal robot in Brooklyn, NY. Other passengers seemed quite unbothered by this unique passenger... maybe we are ready for the future!

Hmm... Captcha considering to get a robot-puppy?

Captcha surrounded by kids from his stroll in a lovely neighbourhood in Italy!