Teckel provides (i) "teckel AI": an AI chat interface with the most popular LLM families: Gemini, ChatGPT, Perplexity, DeepSeek, and Claude, enabling simultaneous conversation with the multiple models ("CrossListen") and (optionally) inter-model conversation between them ("CrossTalk"); and (ii) "teckel talk": a completely anonymous, secure chat service enabling end-to-end encrypted text communication.

Teckel AI supports the most common model variants within each LLM family (e.g. ChatGPT5 & 4.1 plus -mini and -nano variants, etc). Access to the LLMs is paid for using "teckel credits" available via In App purchase.

The teckel talk secure, anonymous, text-based messaging service utilizes Ethereum addressing for authentication. There is no limit to the number of Ethereum addresses that can be created (or imported). Teckel talk does not require a phone number or email address, does not record IP addresses of users, and does not utilize cloud infrastructure. Chat sessions are completely ephemeral, no data is stored on the device or on any servers, though chat (and teckel AI) sessions can be archived via PDF file for offline sharing. All content can be personally moderated and any Ethereum address can be blocked. Messages are encrypted in transit via SSL. Two-way chats are end-to-end encrypted using the Diffie-Hellman algorithm. Optionally, group chats of three or more participants can be end-to-end encrypted using pre-agreed ephemeral passwords (shared between users offline). General public messaging is free. Private group messaging is available through the payment of teckel credits available via In App purchase.

Teckel credits can also be used to access teckel APIs aimed at developers. Currently available APIs include json-rpc Ethereum node services. API key management is authenticated via Ethereum addresses within the app.

See the co-founders podcasts:

Introduction to the new CrossListen and CrossTalk features in teckel AI:

https://www.youtube.com/watch?v=lTyms4a2A0g

Motivation for building teckel, and some basic usage instructions:

https://youtube.com/watch?si=j7mZn6gkTIETZOIt&v=Tj-_2RM4F5Q&feature=youtu.be

teckel.io

Additional Information