Licenses & credits
rikAI includes open-source software, language data and models. Full notices are included in the app under Settings → About → Licenses & credits, available offline.
Handwriting model source
The handwriting recognition model is derived from the Zinnia-Tomoe Japanese model by Taku Kudo and the Tomoe project, under the GNU Lesser General Public License, version 2.1 or later. rikAI converts its representation for the app; the source archive includes the original model, copyright and license notices, and the conversion script.
Download handwriting model source and conversion script (18 MB). The same archive is included in the app and can be shared from Licenses & credits.
Software and model notices
Read the full third-party notices, including CyberAgent CAT-Translate, its Sarashina provenance, Qwen, MLX, dictionaries, and voice and handwriting components. The Wiktionary source-entry index identifies source pages and their contributor histories.
Sharing voice audio
When sharing audio generated with VOICEVOX, include the applicable voice credit, such as VOICEVOX:四国めたん or VOICEVOX:黒沢冴白, and follow the voice’s terms. See the VOICEVOX voice model terms and VirVox character terms. These terms are also linked in the app.