Migrate From Canvas to Integrated Writing and Code Blocks
Switch from Canvas to Writing Blocks for streamlined editing.
Transition your long-form writing and coding workflows from 'Canvas' to the new 'Writing' and 'Code' blocks available in GPT-5.5.
The Scenario
You are drafting a long-form article or a complex Python script and need to iterate on specific sections without regenerating the entire response.
Before & after
Users previously relied on 'Canvas' for side-by-side editing, which could take 5–10 minutes to setup and manage across different model versions.
Switch to these blocks in 1 minute to continue editing long-form content or code without the need for a separate canvas window.
The Prompt
Draft a [PROJECT_TYPE] using a writing block. I need to be able to edit specific sections of this text directly within the chat interface.
GPT-5.5 Instant has phased out 'Canvas' in favor of integrated writing and code blocks. Professional users can still access Canvas briefly via legacy models, but should transition workflows to the new blocks.
Source
Model Release Notes | OpenAI Help Center"Writing and coding functionality is now supported directly in chat responses through writing blocks and code blocks."