What Tablif read on Prism's site
Prism describes itself as: “Prism”
- Price model: free tier
- Free tier: Free forever
- Stage: Beta
What it is
Calls itself “Windows companion”.
- Calls itself: Windows companion
“A Windows companion for personalizing Codex”
What it costs
A free tier, free forever.
- Free plan: free forever
“Free and open source”
“Free and open source · Portable beta”
How it runs
A desktop app for Windows 10 and Windows 11. Runs locally and works offline. Open source.
- Kind: desktop
- Runs on: Windows 10 · Windows 11
- Runs where: on the device, offline
- Open source: yes
“A Windows desktop app”
“Requires Windows 10 (build 19041 or later) or Windows 11”
What it works with
Names Codex, Microsoft Edge WebView2 Runtime and 4 more on its pages.
- Names: Codex · Microsoft Edge WebView2 Runtime · OpenAI · +3
“Codex is a product of OpenAI”
“Microsoft Edge WebView2 Runtime”
What it offers as proof
In beta. Publishes docs.
- Stage: beta
“Portable beta”
“Download the ZIP, extract all files, then open Prism.exe.”
Sources
Tablif read these pages, last on 27 Sept 2026. Everything above is what the product says about itself; Tablif does not verify every claim.
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