AIMochi vs Otter.ai vs Notta: A Chinese Speech-to-Text Tool Comparison
When you're choosing a speech-to-text tool, AIMochi, Otter.ai and Notta are the three names most often lined up against each other. The short answer first: if you work mainly in Chinese and your day-to-day communication runs through LINE, AIMochi is the least painful choice; teams whose meetings are mainly in English and who use Zoom heavily are a better fit for Otter.ai; multilingual users who want a standalone app workspace or Cantonese transcription can consider Notta. Here is the comparison across four dimensions.
1. Language support and Chinese recognition quality
Otter.ai started out transcribing English meetings and has added Chinese support in recent years (currently in Beta, with output mainly in Simplified Chinese; Traditional Chinese output and Cantonese transcription are not yet supported), so there is still a gap for users in Taiwan. Notta's transcription supports 58 languages, including Traditional Chinese, Simplified Chinese and Cantonese. AIMochi supports speech recognition in 99 languages and has been tuned for how people actually speak in Taiwan; its main pitch is accurate recognition of mixed Chinese-English speech, Taiwanese colloquialisms and technical terms.
2. Barrier to entry: do you need yet another app?
Otter.ai and Notta both require an account and are used mainly through a website or a standalone app; Notta has also recently launched a LINE link that lets you chat with its AI assistant inside LINE. What sets AIMochi apart is that the entire workflow is native to LINE: no new app to install, no separate sign-up. Once you add the @aimochi official account, everything — uploading audio, getting the transcript, producing finished copy — happens inside LINE, which means close to zero learning curve for individuals and teams that already use LINE as their main communication tool.
3. Speaker identification and post-processing
All three offer speaker identification. AIMochi uses AI voiceprint technology to label up to 10 speakers automatically, and has Smart Writing powered by the Claude Sonnet 5 model built in: a transcript can be rewritten in one click into meeting minutes, a press release, a social post and more than 10 other content formats, and it also supports translation, summarisation and asking questions directly about a note — so post-processing never leaves LINE.
4. Free quota and data security
AIMochi's free plan provides 3,000 points a month (about 300 minutes of fast transcription); the Basic plan is NT$299 a month and the Team plan NT$899 a month including 5 seats. For Otter.ai's and Notta's free quotas and pricing, please refer to their official websites. On data security, AIMochi encrypts all file transfers, lets you control who a note is shared with through an encrypted link, and offers an on-premises enterprise deployment option for stricter security requirements — see our privacy policy.
Quick comparison
Choose AIMochi: you work mainly in Chinese, communicate over LINE, want speaker identification with nothing to install, and need transcripts turned straight into meeting minutes.
Choose Otter.ai: your meetings are mainly in English and your team relies on Zoom / Google Meet integrations.
Choose Notta: you prefer a standalone app and web workspace, or you're a multilingual user who needs Cantonese transcription.
Conclusion
No tool is absolutely better than the others; what matters is how well it fits your workflow. For users in Taiwan, AIMochi's combination of "native to LINE + Chinese localisation + 3,000 free points a month" brings the cost of trying it close to zero — add the official account, send it a voice message, and then decide whether it's your best answer. See the tutorial for how it works.