CosmicFish · Mistyoz AI
Intelligence, reimagined
A home-grown family of compact language models, built from scratch and designed to run directly on your phone, laptop, or desktop. No cloud, no account — private by default, free to use.
CosmicChat is available
The iOS app that runs CosmicFish on your iPhone — Ceres and Eris included — entirely on-device.
Run anywhere, anytime
Optimized builds keep models fast and battery-conscious. Your conversations stay on your phone — nothing is sent to a server.
Breaking new ground in AI accessibility
CosmicFish is one of India's first home-grown language model families built from scratch to run efficiently without internet access. Designed for phones, laptops, and desktops, it prioritizes privacy, low resource usage, and fast performance — developed by Mistyoz AI.
100% offline & private
Everything runs on your hardware. Your data never leaves your device.
Free forever
Open weights released under Apache 2.0, with no usage limits or fees.
Runs anywhere
Compact by design — built to fit comfortably on everyday phones and computers.
Improving steadily
Our roadmap includes larger, specialized, and more capable models.
See CosmicFish in action
CosmicFish-300M
Prompt: Explain gradient descent in short
Gradient descent is an optimization algorithm used to find the minimum of a function. It works by iteratively updating the parameters in the direction that most reduces the loss.
CosmicFish-120M
Prompt: How do neural networks learn?
A neural network learns through training on labeled examples. During training it adjusts its internal parameters to minimize the error between predicted and actual outputs, then generalizes to new data.
Advanced architecture
Cutting-edge transformer techniques, optimized for efficient on-device performance.
CosmicFish-HRM
A study of adaptive reasoning in compact models — a hierarchical recurrent mechanism that lets the model decide how much computation each input deserves.
Your data stays with you
Unlike cloud-based AI, CosmicFish runs entirely on your device. Your inputs and outputs never leave your hardware.
No internet required
Use it in sensitive environments or areas with limited connectivity — no data is sent anywhere.