Introducing Cortical, a free AI tools platform by TIZZLE built around bring-your-own-key access.
Cortical is a new AI tools platform built by TIZZLE.
It is designed around a simple idea: use the AI models you already pay for, inside tools that stay free.
No extra subscription. No locked-down credits. No unnecessary platform fee.
You can try it now at cortical.tizzle.org.
Why TIZZLE built Cortical
AI tools are useful, but a lot of them are priced like closed platforms.
You pay for the model.
Then you pay again for the wrapper around it.
Cortical takes a different approach.
Instead of charging another subscription, Cortical lets users bring their own API key from providers like OpenAI, Anthropic, Google, or other supported model providers.
The goal is simple:
- keep the tools free
- let users control their own model access
- avoid unnecessary platform fees
- build clean interfaces for real work
- keep improving toward native Cortical models over time
Cortical is not just another chatbot wrapper.
It is the start of a wider AI product and research layer inside the TIZZLE ecosystem.
What Cortical is
Cortical is an AI platform focused on free, bring-your-own-key tools.
The first products include Cortical Chat and Cortical Code.
Cortical Chat is a clean AI chatbot interface where users can connect their own API key and start chatting without paying Cortical a usage fee.
Cortical Code is a terminal coding agent designed to work inside real projects. It can read project structure, plan changes, write code, and help test updates while the user stays in control.
Cortical is also preparing Cortical Vision, a multimodal tool for analysing screenshots, images, and documents.
The platform is built to feel:
- fast
- minimal
- useful
- developer-friendly
- transparent
- easy to understand
No bloated dashboard. No fake complexity. Just practical AI tools.
Bring your own key
The main idea behind Cortical is BYOK: bring your own key.
That means users connect an API key from a model provider they already use.
Cortical provides the interface and workflow layer, while the user keeps control over their model access and usage.
This makes the platform more flexible and more honest.
You are not being forced into another subscription just to access models you may already be paying for somewhere else.
More than a tool
Cortical is also part of TIZZLE’s longer-term AI research direction.
Today, Cortical runs through third-party models using bring-your-own-key access.
Over time, the plan is to build proprietary Cortical models designed around reasoning, control, and real deployment.
That matters because AI products should not just look impressive in demos.
They need to be useful in actual workflows.
Cortical is being built through live products, real interfaces, and practical feedback.
The tools come first.
The research improves through use.
Built by TIZZLE
Cortical is part of the wider TIZZLE ecosystem — a group of websites, tools, experiments, and digital products built around clean design, practical software, and modern web development.
TIZZLE builds products that are sharp, usable, and direct.
Cortical follows the same idea.
It is not trying to be loud.
It is trying to be useful.
Free tools. User-controlled model access. Clean interfaces. A bigger AI direction behind it.
Try Cortical
You can explore Cortical here:
Cortical Chat is available now.
Cortical Code is in beta.
More Cortical tools and research updates are coming soon.
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