01
Persists
Memory that knows when to return.
Save what matters, pin what must stay close, and let situational knowledge surface when the work calls for it.
Local AI runtime
Bring your own
intelligence.
CEX is the free runtime around the model you choose. It keeps memory, tools, reusable skills, and policies under your control.
Free to use · Local by design · Proprietary
01 / The idea
Not another model.
The system around yours.
A model can answer a prompt. It does not automatically remember your work, keep a goal active tomorrow, or follow the rules you set. CEX provides that durable runtime.
02 / The system
Everything intelligence needs to continue.
Memory, tools, skills, goals, policies, and workspaces in one runtime.
02
Tools that do real work.
Search, browse, read, write, and build with the access you approve.
03
Skills that become reusable.
Save a method that worked so CEX can use it again.
04
Goals that persist after chat.
Keep the objective, current state, and next step available when you return.
05
Policies you can actually see.
Set what CEX may do, where the rule applies, and when it must ask first.
06
Workspaces with an outcome.
Keep files, previews, edits, and project conversation together.
03 / Your intelligence
Change the model.
Keep the continuity.
Run locally or connect a provider. Change models without moving your saved memory, tools, policies, or workspace.
- 01 Local models through the runtime you control
- 02 Provider models with your own credentials
- 03 The same memory, tools, and policies with either
You
CEX
MemoryToolsSkillsRules
Local model
Cloud model
Your next model
Local by design
Your runtime, workspace, credentials, and saved memory stay on your machine.
Free runtime
Use CEX for personal or commercial work at no charge. Your work stays yours; the CEX runtime remains proprietary.
Control without clutter
Start with the essentials. Open advanced controls only when you need them.
04 / Get CEX
Your runtime
starts here.
The corrected Linux beta is in final verification. Windows and macOS packaging use the same desktop path and will appear here as signed public builds become available.
Verification in progress
Linux · x86_64
CEX for Linux
Downloads reopen when the proprietary terms, third-party notices, checksums, and security receipts all match the exact installer files.
—
verified installer requests
Connecting to the public count…
No unverified build is being distributed.
Public build pending
Windows 10 / 11 · x64
CEX for Windows
There is no public Windows build yet. The installer will be posted after native build and signing checks.
No public download yet
Public build pending
Apple silicon / Intel
CEX for macOS
There is no public macOS build yet. Native build, signing, and notarization must be verified first.
No public download yet05 / Build it with us
CEX is early.
Help us make it dependable.
Tell us what worked, what broke, and what made you repeat yourself. Reproducible reports shape the next release.
Report a bugSend steps, screenshots, and what happened
→
GitHubDeveloper profile and public repositories
↗
Email CEXhello@cex.app
→
DiscordCommunity channel coming soon
Soon
06 / Keep CEX free
Free to use.
Funded by belief.
CEX is a free autonomous runtime built to keep memory, tools, and model choice under your control. If it has helped you do real work, your support funds the next fixes, platform releases, and improvements.
01 Keep the core runtime free
02 Harden reliability and recovery
03 Bring CEX to more platforms
No locked features. No interruption banners. Support only if CEX has earned it.
Support CEXChoose your contribution
USD
One-time support
$10
Checkout connection pending
The support experience is ready. Secure payment connection is being finished.