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J·Index / Japan / NHK

NHK

3 verified, source-linked AI implementations documented between 2013–2025.

JapanAsia-PacificGlobal / Multinational
Cases
3
Active since
2013
Peak stage
4
Controversies
0

Where the AI sits

Editorial Production3

AI implementations

2025

Proprietary LLM for broadcast production support

Fine-tuned on approximately 40 years of NHK broadcast materials (~20 million sentences of news scripts, articles and subtitles); reduces factual errors in AI responses about broadcast content by ~10%; planned applications include information gathering support, translation and manuscript editing; target deployment 2026""

Editorial Workflow & Writing Assistance1 – Access3 – Collaborative Human–AI
Tool: NHK proprietary LLM (fine-tuned on existing foundation model)Source ↗
2018

Yomiko

AI-powered anime virtual news announcer deployed on programme "News Check Eleven"; uses deep learning with 100,000-word vocabulary; reads news bulletins, holds conversations with human hosts, integrates with Google Home and Amazon Alexa voice platforms, and features AR app functionality; developed at NHK Science & Technology Research Laboratories""

AI Avatars / Synthetic Presenters3 – Proficiency4 – AI-Led, Human Oversight
Tool: Deep learning NLG"; AR integration;" voice assistant (Google Home, Alexa)""Source ↗
2013

Long-running AI misinformation monitoring system

NHK has monitored misinformation for more than a decade using AI-assisted tools to track and analyse false information;" one of the longest-running systematic misinformation monitoring programmes in global public broadcasting

Verification & Fact-Checking4 – Ways of Working3 – Collaborative Human–AI
Tool: AI-assisted monitoring (proprietary)Source ↗

Context

NHK is one of 13 organizations in Japan documented in the index, which holds 24 cases from the country. Its work spans 3 function types, including AI Avatars / Synthetic Presenters, documented across 54 organizations worldwide.

Explore related

More newsrooms in JapanAI Avatars / Synthetic PresentersEditorial Workflow & Writing AssistanceVerification & Fact-CheckingHow this is verified
Part of J·Index — The Journalism AI Index. Every case carries a live source link. Cite with attribution; bulk reproduction is not licensed. Data licensed CC BY-NC 4.0.