LLMs for Accessibility in OTT Captioning
OTT
Media & Entertainment
Report
Accessibility has been mandatory since June 28, 2025. Since the European Accessibility Act (EAA) came into effect on June 28, 2025, accessibility has become mandatory, requiring OTT platforms to deliver accessible video content, particularly including reliable captions for both live and on-demand format
How well do AI-based transcription models perform? What challenges come with live content? And how can you optimize performance for your platform?
Our report “LLMs for accessibility: What works (and what doesn’t) in OTT captioning” provides:
- a clear overview of current LLM-based transcription capabilities
- specific challenges for live vs. non-live captioning
- key metrics: word error rate (WER), processing speed, quality trade-offs
- how domain-specific dictionaries can improve accuracy
- why tailored evaluation is essential for reliable compliance
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