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Product features

With the AI chatbot at the center, use the lecture-note, voice and comic tools from one account. For each feature, here is what you put in, how you set it up and what you get, shown with real screens.

02 · Menu: Text-to-Speech

TTS study content

Paste your notes or a script and turn them into MP3 audio you can listen to.

  • Type text directly, up to 4,000 characters per request
  • Copy and paste your notes or scripts

How it works

  • There is no file upload or language selection; the text you enter is read as written.
Open TTS
FAQ

Frequently asked questions

What lecture materials can I upload to AI Note?

AI Note accepts lecture slides as PDF, PPT or PPTX files up to 50MB and 300 pages. Record the lecture in the browser and the live Korean transcript is saved page by page; you can then ask the AI about a page or a selected area.

Can I turn a lecture recording into text?

The Transcription menu converts audio files such as MP3, M4A and WAV into speaker-separated text that you can download as TXT or DOCX. You can then use AI chat to turn the transcript into a summary, key points, keywords or lecture notes.

How much text can TTS convert at once?

TTS converts up to 4,000 characters per request into MP3 audio. There are six voices (Alloy, Echo, Fable, Onyx, Nova, Shimmer) and two models: TTS-1 (fast) and TTS-1-HD (high quality).

How do I make an Instagram comic with AI?

Enter a story of up to 10,000 characters in Comic Maker; the AI writes a storyboard and draws 1:1 panels with Nano Banana Pro (Google) or GPT Image 2.5 (OpenAI). It supports 14 art styles and 2–10 panels, keeps characters consistent across panels, and saves each panel as a PNG.

Does the comic maker add speech bubbles automatically?

No. Speech bubbles are not drawn inside the image yet; dialogue is placed as caption boxes on top of each panel. Bulk download of all panels, vertical webtoon stitching, video export and automatic SNS posting are not available yet.

For Business

AI harnesses and APIs
for business

Alongside our AI services for users, CoreSynaptics Inc. develops its own AI harnesses and APIs suited to businesses and institutions. Tell us what you want to achieve and what data you work with, and we will design the setup and integration with you.

Contact us for businessSee inquiry types

Business inquiries contact@coresynaptics.co.kr

  • 01AI harness development

    We combine model selection, purpose-built prompts and usage logging into an AI runtime tailored to your workflow and ready to operate.

  • 02Custom AI APIs

    Using prompt engineering, we design AI features around a client's workflow and data formats and deliver them as APIs that plug into existing services.

  • 03Adoption and partnerships

    We consult on organization-wide adoption and business partnerships. Share the features you need, expected usage and timeline, and we will get back to you.

From organizing material to making content, with one account

Use AI Chat, AI Note, Transcription, TTS and Comic Maker with a single sign-in.

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AI Note, Transcription, TTS & Comic Maker features | CoreSynaptics AI