drafty

What is Gemini Canvas?

Gemini Canvas is Google's AI workspace — a persistent side panel where you write, edit, build small apps, and iterate without starting a new conversation. Here's what it actually does, where it wins, and where it runs out of road.

Quick answer
Gemini Canvas is a live panel inside the Gemini app (gemini.google.com) that holds your output — a document, a piece of code, a working web app — while the conversation continues on the left. You refine content by highlighting a section and asking for targeted changes, or by building iteratively through the chat. It launched in Google Labs in July 2025 and rolled out to all US users in early 2026.

What Gemini Canvas is

Canvas is a split-pane workspace. The chat lives on the left; your artifact — document, app, infographic, study guide — lives on the right in a persistent panel that updates as you ask for changes. Nothing gets buried in the scroll; the thing you're building is always visible.

The core workflow: you prompt Gemini to create something, it renders the result in Canvas, and you refine it by highlighting specific paragraphs and asking for rewrites, or by sending follow-up instructions to the whole piece. The model prioritizes completing a high-quality first draft before you start iterating, which means fewer "here's a rough skeleton" replies and more ready-to-refine outputs.

Canvas is distinct from Gemini's standard chat interface and from Gems (Gemini's saved-context system). Canvas is about the output and editing it; Gems are about loading persistent instructions and documents so Gemini always knows your context. You'd use both together: a Gem that knows your brand voice, Canvas to draft and refine the actual content.

What you can build in Canvas

Canvas handles four categories of output:

Documents and long-form writing. Speeches, research summaries, blog posts, reports, emails — anything you'd refine in a word processor. The highlighted-paragraph edit model means you can ask Gemini to make one section more concise without touching the rest.

Code. Write functions, debug scripts, and iterate logic inside Canvas. Unlike Claude Artifacts, Canvas doesn't execute the code and show you a live result — you'd need to copy it to your editor or a notebook to run it. For code iteration (not code preview), that's fine.

Web apps and prototypes. Gemini 3 (the model powering Canvas on Google AI Pro/Ultra plans) can generate working interactive applications from a plain-language description — a customer tracker, a pricing calculator, an interactive quiz. These can be shared as links that recipients open in a browser.

Transformed content. Feed Canvas a Deep Research report and ask it to turn the output into a web page, an infographic, a quiz, or an audio overview. This is a workflow that doesn't exist in most tools: a research agent and a publishing layer inside the same product.

Where Gemini Canvas wins

Tight Google-ecosystem integration. Canvas exports to Google Docs in one click. If your stakeholders live in Google Workspace — and most enterprise teams do — that handoff is frictionless in a way that no other AI canvas matches. You can also push to Google Slides or export as a PDF.

Paragraph-level targeted edits. Highlight a section, ask for a change — only that section updates. ChatGPT Canvas applies its editing shortcuts to the whole document; Gemini Canvas applies them to the range you selected. For a long spec or report, that precision matters.

No usage cap on the base tier. The standard Gemini canvas experience has no hard message limit for personal accounts, unlike ChatGPT Canvas which gates heavy use behind Plus. For a maker or PM who runs long iteration sessions, that's a practical advantage.

Speed on first draft quality. Google's framing is that Canvas delivers the most complete result on the first try — fewer empty skeleton responses, more content you can actually work with before you start editing.

Where Gemini Canvas falls short

No live code execution. A Canvas app or code snippet doesn't run inside the panel for most users. Claude Artifacts render HTML, React, and JavaScript live, so you interact with the prototype directly. In Canvas, you generate, copy, paste elsewhere to run — an extra step that breaks the iteration loop.

Sharing is restricted for Workspace accounts. If you're signed in with a Google Workspace (business or education) account, you may not be able to share Canvas content via a public link at all — an admin policy controls this. For personal accounts, sharing works; for teams using Workspace in managed environments, check with your admin before relying on public links as a review workflow.

Desktop-only full editing experience. The Canvas inline editing toolbar doesn't appear on mobile. You can view and run Canvas apps on mobile, but paragraph-level edits require the desktop web app. For a PM reviewing a draft on the go, that's a real constraint.

When context shifts, Canvas can overwrite. A quirk worth knowing: if you shift topics mid-conversation, the canvas content may be replaced. Unlike Claude's approach — where each artifact is a discrete output that persists — Gemini Canvas is closer to a single persistent document surface. Multiple distinct outputs in one session require careful session management.

No comment layer for external reviewers. A shared Canvas link lets the recipient open the content and make their own copy. It doesn't let them click a specific paragraph and leave a pinned note visible to you. Feedback still travels as Slack messages or emails describing what to change — the same handoff-by-screenshot problem that predates AI canvases entirely.

How Canvas compares to ChatGPT Canvas and Claude Artifacts

Gemini CanvasChatGPT CanvasClaude Artifacts
Best forDocs + Google-ecosystem tasksLong-form writing, surgical code editsSelf-contained apps, pages, charts
Live code executionLimitedNoYes
Editing styleParagraph-level, highlightedWhole-document shortcutsFull regeneration by prompting
Export to Google DocsOne click
Share without accountYes (personal accounts)Requires ChatGPT accountYes
Workspace account sharingRestricted by admin
Element-level comments

Capabilities change frequently — verify current behavior in each product's documentation.

The common thread at the bottom of that table: none of the three AI canvases has a built-in way for external reviewers to annotate specific elements. That's the step they're all still missing.

The real gap: after you build something

You've spent 30 minutes in Canvas iterating a PRD, a landing page copy draft, or a prototype pricing calculator. It's good. Now you need your designer, your client, or your PM lead to react to specific parts of it — not just "looks good" but "the second paragraph under Features is confusing" or "this button should say Sign up, not Get started."

The current options: share the link (if your account allows it) and ask for feedback over Slack or email. Your reviewer describes what they mean using words and screenshots. You translate that back to a Canvas prompt. For two or three rounds of review, this works. For a complex deliverable with multiple stakeholders, the translation cost adds up fast.

Where Drafty fits
Drafty is a way to add a comment layer to whatever Canvas produced. Publish the output — paste the exported HTML or Markdown — to a drafty.im/canvas/… link. Anyone can open it on any device and click the exact element to leave an anchored comment, no account required. Your agent reads the comments through the CLI and ships a revised version to the same URL. It works on output from Gemini Canvas, Claude Artifacts, ChatGPT Canvas, or anything else — it doesn't care which tool generated the content.

The workflow that works: generate in Gemini Canvas (where Google ecosystem fit or paragraph-level editing gives you an edge), then publish to a shareable link for external review. Keep the AI iteration loop and the human review loop separate but connected.

Who Gemini Canvas is built for

Canvas is a strong fit when most of your work ends up in Google Docs, Slides, or the broader Workspace ecosystem. If the final destination for your content is a Google Doc that your team co-edits, or a Slides deck that your manager presents — Canvas is the shortest path there from an AI generation step.

It's also a good fit for teams that work heavily in Google Workspace and want AI assistance that stays inside that permission model, rather than copying sensitive material into a third-party AI tool.

For makers and PMs whose outputs are visual deliverables that need review — prototypes, specs with embedded mockups, documents that non-technical stakeholders will react to — Canvas's generation quality is high, but the review loop requires an extra layer on top.

Gemini Canvas — frequently asked questions

What is Gemini Canvas used for?
Gemini Canvas is a persistent workspace beside the Gemini chat where you draft and refine documents, write and iterate code, build small interactive apps, and transform content (a research report into an infographic, for example). It's strongest for long-form writing and tasks that end up in Google Docs or Slides.
Is Gemini Canvas free?
The basic Canvas experience is available on free Gemini accounts. Access to Gemini 3 — which powers the app-building and 1 million token context features — requires a Google AI Pro or Ultra subscription. Free accounts get earlier model versions with a more limited feature set.
Can Gemini Canvas run code?
For most users, Canvas generates code but doesn't execute it in-panel. You'd copy the code to an editor, a Colab notebook, or another environment to run it. Claude Artifacts differ here — they render and run HTML, React, and JavaScript directly in the preview pane, so you interact with the result immediately.
How do I share a Gemini Canvas?
From the Canvas panel, use the Share & export option to generate a shareable link. Recipients can open the content in a browser without a Google account. However, if you're signed in with a Google Workspace (business or school) account, your admin may have restricted sharing — check with your IT team if the share option doesn't appear.
What's the difference between Gemini Canvas and ChatGPT Canvas?
Both put an editable workspace next to the chat, but they differ on editing style and ecosystem fit. Gemini Canvas applies targeted edits to the paragraph you highlight; ChatGPT Canvas applies shortcuts to the whole document. Gemini Canvas exports directly to Google Docs; ChatGPT Canvas doesn't. ChatGPT Canvas handles longer documents before coherence drops, because GPT-4o's effective context is larger for dense prose. Neither can run code and show you a live result — Claude Artifacts do that.
Can external reviewers comment on a Gemini Canvas output?
Not natively. Shared Canvas links let recipients view the content and make their own copy, but there's no way to click a specific element and leave an anchored comment visible to the original author. Feedback still travels as messages describing what to change. For element-level annotations, you'd need to publish the output to a tool that has a comment layer built in.
Does Gemini Canvas work on mobile?
Partially. You can view and run Canvas apps on mobile, but the inline paragraph-editing toolbar is desktop-only. Full editing — highlighting a section and requesting a targeted rewrite — requires the desktop web app at gemini.google.com.