Gemini platform

Model Show thinking text (Flash) Ground with Google Search (real-time web; billed per query) Thinking level (Gemini 3 Flash)

Your message

Ask for HTML/CSS/JS (fenced block). This preview disables pointer lock and fullscreen so the tab cannot hang — use Open for 3D / FPS-style games.

Open in Codemesh

Built URL looks like https://codemesh.org/?code=…. Base URL = origin (e.g. https://codemesh.org). Path = route on that host — / for home, or /play if your app handles code there (then you get https://codemesh.org/play?code=…). Query param = the query key your Codemesh app reads (code, q, etc.). Very long code may hit browser URL limits; use Copy and paste for huge payloads.

Base URL Path Query param

Model Ground with Google Search (for up-to-date visuals; billed per query) Prompt Optional reference image (base64 edit)

Model Aspect ratio Prompt Optional start image (PNG or JPEG recommended)

Video can take several minutes. Keep this tab open. If image upload fails, try a smaller PNG/JPEG — WebP may not be supported by Veo.