Brainy CanvasGPT-5.3 Codex
GPT-5.3 Codex is tuned for software engineering — code generation, refactoring, and repository-scale reasoning — at the same price as the general GPT-5.2 tier.
The $29.99/month Premium membership includes 6,400 credits — roughly 2 GPT-5.3 Codex generations every month. New accounts get 200 free credits to start, about 0 generations with this model.
How to use GPT-5.3 Codex on the canvas
- 1
Add a node
Open a canvas and drop in an Text node from the toolbar.
- 2
Pick GPT-5.3 Codex
Choose GPT-5.3 Codex from the model list, then connect a Text node with your prompt.
- 3
Generate
Run the node. Each generation costs 2800 credits ($1.75 in / $14.00 out), billed from your balance.
GPT-5.3 Codex FAQ
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Run GPT-5.3 Codex at cost
Sign up free, get 200 credits, and generate with GPT-5.3 Codex and 176+ other models on one visual canvas — no markup, cancel anytime.
- 200 free credits on sign-up, no credit card
- Wholesale model pricing — $1.75 in / $14.00 out
- Every model on one canvas, no per-tool subscriptions
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