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Google Antigravity vs Replit

A feature-by-feature comparison of Google Antigravity and Replit across 7 capability categories.

First tool

Try Google Antigravity (opens in a new tab)

Second tool

Try Replit (opens in a new tab)

Modalities — Replit Wins

Modalities: Google Antigravity compared with Replit
Feature	Google Antigravity	Replit
Text Input	Yes, requires free plan. Agents are driven by text prompts in the desktop command center, IDE agent panel, and CLI.	Yes, requires free plan. Replit Chat / Agent 4 turns a prompt into a published app. First prompt is documented as free.
Image Upload / Vision	Unknown. Vision attach in the agent panel was not confirmed on the product homepage or plans doc.	Unknown. Infinite Canvas is a visual design surface. Screenshot/vision upload was not confirmed.
Image Generation	No. Documented as an agentic coding platform, not an image generator.	Unknown. Apps can call image APIs via integrations. A first-party image model was not confirmed.
Voice Mode	No. No conversational voice loop is documented.	No. No conversational voice loop is documented.
Video Understanding	No. Not a video-analysis product.	No. Not a video-analysis product.
Video Generation	No. Not a video generation product.	No. Not a video generation product.
File Upload (PDF, DOCX)	Yes, requires free plan. Agents operate on the local workspace/codebase. That is repo context, not a PDF chat uploader.	Yes, requires free plan. Workspaces hold project files. You can import and edit a full codebase in the browser.
Code Execution	Yes, requires free plan. The CLI runs shell commands and coding agents. The IDE agent edits and verifies in the project.	Yes, requires free plan. The IDE runs code, hosts apps, and can keep a background task running. Agent writes production-ready code.
Audio Input	No. No audio-file input is documented.	No. No audio-file input is documented.
Canvas / Artifact Editor	Unknown. Overlapping columns disagreed (partial vs yes); left unverified rather than copying a no.	Yes, requires free plan. Infinite Canvas is a visual design space that applies back onto the app.
Screen Sharing / Computer Use	Partial. Browser-in-the-loop agents automate in-page tasks. That is computer-use-like, not a screen-share meeting product.	No. No computer-use desktop takeover. Collaboration is inside Replit.

Memory & Context — Google Antigravity Wins

Memory & Context: Google Antigravity compared with Replit
Feature	Google Antigravity	Replit
Persistent Memory	Partial. Custom agents and ~/.gemini/ plus .agents/ configs persist. That is project/user config, not ChatGPT-style memory of you.	Partial. Workspaces persist. That is project state, not ChatGPT-style memory of you.
Large Context Window	Unknown. Uses Gemini agent models; no token window is published on the Antigravity plans page.	Unknown. Intelligent model routing is documented; no token window is published on pricing.
Custom Instructions	Yes, requires free plan. Custom Agents are Markdown+YAML under .agents/agents/ or ~/.gemini/config/agents/.	Unknown. Plan mode is on Core. A global instruction profile was not confirmed on the homepage.
Conversation History	Yes, requires free plan. Antigravity 2.0 groups conversations into Projects and can schedule messages.	Yes, requires free plan. Chat with the Agent persists in the workspace.

Integrations — Google Antigravity Wins

Integrations: Google Antigravity compared with Replit
Feature	Google Antigravity	Replit
Web Search / Browsing	Partial. Frontend pitch is browser-in-the-loop agents. That is agent browsing, not a cited search box.	Unknown. A first-party live-web search toggle was not confirmed.
Plugins / Extensions	Yes, requires free plan. Codelab: Antigravity IDE supports local and remote MCP servers; a blog covers IDE Extensions.	Yes, requires free plan. 100+ integrations (OpenAI, Stripe, Google Workspace, and more).
API Access	Yes, requires free plan. Antigravity SDK is a documented Python surface for custom agents on the harness.	Unknown. You build apps with APIs. A public Replit generate API was not confirmed.
Zapier Integration	Unknown. No first-party Zapier app was checked.	Unknown. No first-party Zapier app was checked.
Custom GPTs / Bots	Yes, requires free plan. Custom Agents (Markdown) can be selected in the GUI or run via agy --agent.	No. You publish apps, not a Custom GPT store.
Real-time Collaboration	Unknown. Repo-shared .agents/ files help teams. Live multiplayer editing was not documented.	Yes, requires plus plan. Agent 4 multi-user collaboration and Pro collaborator/viewer seats are documented.
Live Social Data Integration	No. Not a live social-firehose product.	No. Not a live social-firehose product.
Live Citation Mapping	No. Not a cited-search product.	No. Not a cited-search product.

Developer — Google Antigravity Wins

Developer: Google Antigravity compared with Replit
Feature	Google Antigravity	Replit
Function Calling	Yes, requires free plan. Agents use tools, MCP, shell, and subagents rather than a chat-only reply.	Yes, requires free plan. Agent takes actions (write code, use services, publish) rather than chat-only replies.
Streaming Responses	Unknown. Token streaming in the agent UI is not documented as an API guarantee.	Unknown. Token streaming is not documented as an API contract.
Fine-Tuning	No. You pick Gemini (and on Ultra, third-party) models. No custom-weight training product.	No. Intelligent model routing picks hosted models. No custom-weight training product.
Embeddings API	No. Not an embeddings API.	No. Not an embeddings API.
Structured Output (JSON)	Unknown. Artifacts exist in the IDE; JSON-schema guarantees were not documented.	Partial. Agent 4 can flesh out requirements before a build. Not a JSON-schema chat API.
Reasoning / Thinking Mode	Yes, requires free plan. Core agent models include Gemini 3.1 Pro / 3.5 Flash. Ultra adds third-party models.	Unknown. Overlapping columns disagreed (yes vs partial); left unverified rather than copying a no.
Local Execution	Yes, requires free plan. Agents run locally on the machine; models remain Google-hosted Gemini (and partners).	No. Code runs on Replit’s cloud, not as a local runtime you download.
Open Weights	No. The harness is Google’s. Open-weight models are not the documented default.	No. Hosted models via routing. Replit is not an open-weight model release.
Multi-Agent Orchestration	Yes, requires free plan. Command center runs multiple local agents in parallel; CLI manages background subagents.	Yes, requires pro plan. Pro documents 10 parallel agents. Homepage also highlights parallel task execution.

Platforms — Tie

Platforms: Google Antigravity compared with Replit
Feature	Google Antigravity	Replit
Web App	No. Surfaces are desktop, IDE, and CLI. A browser IDE is not the documented product.	Yes, requires free plan. replit.com is the IDE, Agent, and hosting dashboard.
iOS App	No. Downloads are macOS, Windows, and Linux.	Unknown. A current native iOS app was not confirmed on the homepage/pricing pages checked.
Android App	No. No Android client is documented.	Unknown. A current native Android app was not confirmed on the homepage/pricing pages checked.
Desktop App	Yes, requires free plan. Antigravity 2.0 is a standalone desktop command center; Antigravity IDE is a separate desktop install.	No. The documented product is the browser IDE, not a native desktop install.
Chrome Extension	No. No official Chrome extension is documented.	No. No official Chrome extension is documented.

Privacy — Tie

Privacy: Google Antigravity compared with Replit
Feature	Google Antigravity	Replit
GDPR Compliant	Unknown. Needs a current Google DPA read for Antigravity specifically.	Unknown. Needs a current Replit DPA read.
Opt Out of Data Training	Unknown. Training opt-out was not on the plans page checked.	Unknown. A training opt-out toggle was not checked.
Enterprise Privacy Mode	Yes, requires enterprise plan. Teams use Google Cloud terms via Gemini Enterprise Agent Platform. Individual BYOK is explicitly unsupported.	Yes, requires enterprise plan. SSO/SAML, SOC 2, admin controls, single-tenant, static outbound IPs.

Workspaces — Tie

Workspaces: Google Antigravity compared with Replit
Feature	Google Antigravity	Replit
Projects / Folders	Yes, requires free plan. Antigravity 2.0 groups conversations into Projects and works across workspaces.	Yes, requires free plan. Workspaces/projects. Core lists unlimited workspaces.