Master Inline Editing with GPT-5.5 Writing and Code Blocks
Transition from Canvas to inline Writing and Code Blocks.
Switch your workflow from the 'Canvas' interface to the new 'Writing and Code Blocks' within GPT-5.5 for a faster, more integrated editing experience.
The Scenario
You are iterating on a piece of Python code or a long-form article and want to edit specific sections without switching tools or re-generating the whole chat.
Before & after
You had to open the separate 'Canvas' interface or copy-paste code back and forth between ChatGPT and a local IDE, taking 5–10 minutes of context switching.
Use Writing and Code Blocks in GPT-5.5 Instant to edit and run snippets directly. This keeps the workflow in one tab, taking under 1 minute.
The Prompt
Draft a [TYPE OF DOCUMENT OR CODE, E.G., PYTHON SCRIPT FOR DATA CLEANING] using a code block so I can review and edit it directly within this conversation.
Since canvas is being sunset for newer models, writing and coding functionality is now unified into direct chat responses via specialized blocks that support inline editing and execution.
Source
Model Release Notes | OpenAI Help Center"Writing and coding functionality is now supported directly in chat responses through writing blocks and code blocks."