Open Brain AI

Open Brain AI's research platform uses computational analysis of spoken and written language to aid teachers, clinicians, and researchers. Our AI solutions support teaching, diagnosis, treatment monitoring, and greater understanding of aphasia, dementia, and developmental language conditions.

Currently, we support the following languages:

English US, Danish, Dutch, Finnish, French, German, Greek, Italian, Norwegian, Polish, Portuguese, Romanian, Russian, Spanish, and Swedish.

Language Tools

Open Brain AI's cutting-edge linguistic analysis tools streamline your work. OBAI offers automatic speech transcription for faster, more accurate data collection, plus deep analysis across language domains. Gain the insights you need to advance language disorder research, diagnostics, and treatment strategies.

AI Models in Education

Open Brain AI's intuitive platform gives educators unparalleled insights into student learning. Advanced machine learning models identify individual strengths, challenges, and learning patterns. This data streamlines personalized instruction and the refinement of teaching strategies, optimizing educational outcomes.

Research Tools

Open Brain AI models empower clinicians to personalize treatment with unparalleled language analysis. By assessing both spoken and written communication, they provide a holistic view of patients' linguistic abilities, enabling targeted therapies and more accurate prognoses.

OB  AI App

Unlock insights into written and spoken language with the OB  AI editor's comprehensive analysis tools. Reveal patterns and trends across these linguistic domains:

01OB  AI Companion

OB  AI Companion can analyze written work for complexity, coherence, and grammatical accuracy, while also providing feedback for improvement.

OB  AI Companion can suggest novel research questions or connections between disparate areas of study.

It can help researchers draft literature reviews, summarize findings, and ensure clarity in their writing.

Find out more about OB  AI Companion in OB  AI App.

02Language Tools
OB  AI App empowers you to analyze text and speech for a deeper understanding of language use. Key features include:
  • Grammar Error Detection: Instantly identify and correct grammatical mistakes to refine your writing. Check the grammar of the text sentence by sentence.

  • Comprehensive Assessment: Evaluate writing across multiple dimensions, including complexity, style, and fluency. Receive actionable feedback for improvement.

  • Automatic Translation: Break down language barriers by accurately translating text between multiple languages.

  • Part of Speech Analysis and Visualization: Gain insights into sentence structure and word function with clear visual representations.

  • IPA Transcription: Analyze pronunciation patterns and support language learning with precise phonetic transcriptions.

Try our platform today and experience the power of comprehensive language analysis!

03Clinical and Educational Toolkit

Unlock deeper language insights with our precise advanced analysis tools.

  • Conduct Automatic Linguistic Analysis of multiple documents.Elicit automatic measures (phonology, morphology, syntax, semantics, lexicon and readability) from multiple documents.

  • Phonological errors scoring. Score automatically the phonological errors and export the output in multiple formats (e.g., spreadsheet and text).

  • Spelling errors scoring. Score automatically the spelling errors and export the output in multiple formats (e.g., spreadsheet and text). Get in touch with us to learn about our offline models for diagnosis, prognosis, and teaching and therapy efficacy assessment.

Download OBAI App on your Desktop

You can use your OBAI App on your Desktop to transcribe speech, assess grammatical errors, conduct linguistic measurments and much more!

AI Analysis of Discourse

We provide discourse analysis using AI. We offer recommendations on the Cohesion and Coherence, checks the errors, and suggests whether there are pathological impairments.

Written Speech

We analyze written speech and provide measures and scores about all linguistic domains, including phonology, morphology, syntax, semantics, lexicon, and readability measures.

Spoken Speech

We provide automatic transcription of spoken speech and provide measures and scores about all linguistic domains, including phonology, morphology, syntax, semantics, lexicon, and readability measures..

Semantic Analysis

Score the semantics of speech productions in patients, e.g., in confrontational naming tasks.

Phonological Analysis

Score the phonological productions of patients.

Transcribe Sounds into the International Phonetic Alphabet

Multilingual IPA transcription and get measures from the IPA transcription.

Get Started


Computational language assessment is a fast and objective way to identify speech, language, and communication impairments as symptoms of other conditions (e.g., dementia or developmental language impairments) (Themistocleous et al. 2023).

Therapy and Teaching Efficacy

We provide automatic online scores that can help assess the efficacy of clinical therapy or teaching (Themistocleous et al. 2021).

Dementia Diagnosis and Prognosis

Language can be employed for early dementia diagnosis and deferential diagnosis into variants and prognosis (Themistocleous et al. 2022).

Disease Monitoring

Providing telemonitory and telehealth with accessible tools (Themistocleous 2023).


See how your users experience your website in realtime or view trends to see any changes in performance over time.

Natural Language Processing

Natural Language Processing allows the analysis of discourse automatically. It provides measures, including counts from phonology (e.g., number of syllables), morphology (e.g., number of parts of speech in text), syntax (e.g., syntactic constituents), semantics (e.g., number of entities), readability measures, and lexical measures.

Acoustic Analysis

It enable the transcription of texts, the automatic segmentation of speech into words and speakers, and the elicitation of acoustic measures, such as information about prosody and voice quality.

Machine Learning

State-of-art Machine Learning and statistical models, especially Deep Neural Network architectures enable us to find patterns from language that characterize language impairments in adults and children.

For Clinicians, Educators, and Researchers.

Multilingual Support

OBAI platform offers clinicians, educators, and researchers tools like instant audio transcription, in-depth grammatical insights, and seamless translation. We simplify workflows, enabling professionals to dedicate more time to their patients and students.

Automatic Cognitive and Linguistic Biomarkers

OBAI transforms speech and language into insights, extracting biomarkers from written and spoken words to assess cognitive and psychiatric health. OBAI can track language development over time, pinpointing learning impairments with precision

Data Protection and Privacy

OBAI protects users data by avoiding to keep data other than those requested by the users.

Our Team

We are researchers, clinicians, and teachers with a focus on speech, language, and communication, on cognition, and the brain. We strive to improve the lives of individuals with language and cognitive disorders.


Aphasia is a language disorder caused by damage to parts of the brain that control speech and language production and understanding. It is usually caused by stroke, tumor, or traumatic brain injury. Depending the brain areas that are damaged, the aphasia symptoms may vary.

Read more

Computational Language Assessment

Computational Language Assessment employs tools based on Natural Language Processing, Signal Processing, and Machine Learning to automatically analyze speech, language, and communication. Computational methods enable clinicians and researchers to elicit quantified, accurate, and fast measures of language functioning of their patients.

Read more

Apraxia of speech

Apraxia of speech (AOS) is a neurological disorder that impairs a person's ability to plan and execute the precise movements needed to produce speech sounds.

Read more

Let's talk

We will love to hear from you for research collaboration, comments, suggestions, or other matters.

Contact Info