Windsurf vs Antigravity vs Cursor vs Nimbalyst (2026)
Windsurf vs Antigravity vs Cursor vs Nimbalyst compared in 2026. Features, parallel agents, browser testing, mobile access, and pricing.
Windsurf vs Antigravity is the new comparison developers ask after Google launched Antigravity, an agent-first VS Code fork that competes directly with Windsurf and Cursor. Add Nimbalyst to the picture and you have four very different bets on how developers will work with AI in 2026. Cursor and Windsurf are AI-enhanced IDEs that start with a code editor and add AI. Google Antigravity is a VS Code fork with a built-in “Manager View” for parallel agents. Nimbalyst is an AI-native workspace that starts with the AI agent and builds visual tools around it.
Windsurf vs Antigravity (Quick Answer)
If you only want the head-to-head verdict between Windsurf and Antigravity:
| Dimension | Windsurf | Antigravity |
|---|---|---|
| Foundation | Custom AI-first IDE | VS Code fork |
| Default model | Codeium models + third-party | Gemini 3.1 Pro/Flash, plus Claude and GPT |
| Parallel agents | No | Yes, up to 5 via Manager View |
| Built-in browser | No | Yes, Chrome integration |
| Cascade-style multi-step agent | Yes | Yes (Manager View orchestration) |
| Pricing (Pro) | $15 per month | ~$20 per month |
| Open source | Closed | Closed (Google) |
Pick Windsurf when you want a polished AI-first IDE with Cascade’s multi-step agent and you mostly run one session at a time.
Pick Antigravity when you want parallel agents inside a full IDE, Gemini 3.1 as your default model, or built-in Chrome browser testing for front-end work.
Pick Nimbalyst when you use Claude Code or Codex as your primary agent, want to run 6+ parallel sessions on a kanban board, need optional one-click git worktree isolation per session, or want mobile access from iOS.
The full four-way comparison follows.
Why this comparison matters
Cursor, Windsurf, Antigravity, and Nimbalyst represent four different bets on how developers will work with AI. This is not a “which is best” article. Each tool excels for different workflows. This guide helps you pick the right one.
Architecture: Four Different Approaches
Cursor: AI-Enhanced VS Code
Cursor is a fork of VS Code with deeply integrated AI features. The code editor is the center of the experience. AI assists through inline completions, a chat sidebar, and an agent mode that can make multi-file edits.
- Foundation: VS Code fork with the full extension ecosystem and familiar keybindings
- AI model: Multiple models including Claude Sonnet, GPT, and Cursor’s own models
- Agent mode: AI can read, edit, and create files, run terminal commands, and iterate on errors
- Context: Codebase indexing, @-mentions for files/docs, .cursorrules for project context
The key advantage: it is a fully functional IDE. You can use Cursor as your only development tool.
Windsurf: AI-First IDE
Windsurf (by Codeium) takes a similar IDE approach but with a stronger emphasis on AI-native features like Cascade, a persistent multi-step AI workflow engine.
- Foundation: Custom IDE (not a VS Code fork)
- AI model: Codeium’s models plus third-party options
- Cascade: Multi-step agent that maintains context across a chain of actions
- Context: Automatic codebase understanding, no manual configuration needed
The key advantage: Cascade’s multi-step reasoning feels more autonomous than typical chat-based AI coding.
Antigravity: Google’s Agent IDE with Manager View
Google Antigravity is a VS Code fork with two modes: a traditional Editor View and a Manager View for orchestrating parallel agents.
- Foundation: VS Code fork with full extension compatibility
- AI model: Gemini 3.1 Pro/Flash by default, plus Claude and GPT support
- Manager View: Control center for dispatching up to 5 parallel agents across workspaces
- Built-in browser: Chrome integration lets agents launch, interact with, and screenshot your app
The key advantage: the Manager View gives you parallel agent execution inside a full IDE, with a built-in browser for visual verification.
Nimbalyst: Visual Workspace for AI Agents
Nimbalyst is not an IDE at all. It is an AI-native workspace where Claude Code and Codex, the most powerful AI coding agents available, are the execution engines. You manage sessions, review changes, and do visual work (docs, diagrams, mockups) in a purpose-built interface.
- Foundation: Cross-platform app (macOS, Windows, Linux, iOS) with Claude Code and Codex running underneath
- AI agents: Claude Code (Claude Opus/Sonnet) and Codex (OpenAI’s codex-optimized GPT-5 family), not custom models, the actual CLI agents
- Multi-session: Run 6+ agent sessions simultaneously with kanban-style management
- Visual tools: WYSIWYG markdown, Excalidraw diagrams, data model designer, mockup editor
The key advantage: you are using the most powerful coding agents (Claude Code, Codex) with a visual management layer on top, not a watered-down version embedded in an IDE. See all Nimbalyst features in detail. For a three-way comparison, see Nimbalyst vs Cursor vs Windsurf.
Feature Comparison
Code Editing
| Feature | Cursor | Windsurf | Antigravity | Nimbalyst |
|---|---|---|---|---|
| Inline code editing | Yes (full IDE) | Yes (full IDE) | Yes (full IDE) | Via agent (Claude Code/Codex handles edits) |
| Autocomplete | Yes (AI-powered) | Yes (AI-powered) | Yes (AI-powered) | No (agents write complete implementations) |
| Syntax highlighting | Full IDE | Full IDE | Full IDE | Code viewer with syntax highlighting |
| Extension ecosystem | VS Code extensions | Limited | VS Code extensions | MCP extensions |
| Manual coding | Yes | Yes | Yes | Possible but not primary workflow |
Winner: Cursor/Windsurf/Antigravity for traditional code editing. These are IDEs where code editing is the core function. Nimbalyst delegates editing to the AI agent, which is intentional: the bet is that you should not be manually editing code that an agent can write.
AI Agent Capabilities
| Feature | Cursor | Windsurf | Antigravity | Nimbalyst |
|---|---|---|---|---|
| Underlying agent | Cursor’s agent mode | Cascade | Gemini-powered agents | Claude Code + Codex (full CLI agents) |
| Multi-file edits | Yes | Yes | Yes | Yes |
| Terminal command execution | Yes | Yes | Yes | Yes |
| Agent quality | Good | Good | Good (Gemini 3.1) | Best-in-class (Claude Opus/Codex) |
| Model flexibility | Multiple models | Limited | Gemini + Claude + GPT | Claude + Codex models |
| Built-in browser testing | No | No | Yes (Chrome) | No |
Winner: Nimbalyst for agent quality. Claude Code and Codex consistently top coding benchmarks. Antigravity’s Chrome integration is a genuine differentiator for front-end work, but on raw coding capability, the Claude Code and Codex agents are a step above.
Multi-Session Management
| Feature | Cursor | Windsurf | Antigravity | Nimbalyst |
|---|---|---|---|---|
| Parallel agent sessions | Cursor 2.0 (up to 8) | No | Yes (up to 5, Manager View) | Yes (6+ sessions) |
| Session status board | No | No | Inbox + workspace list | Kanban board |
| Git worktree isolation | Yes (Cursor 2.0) | No | One agent per workspace | Optional one-click per session |
| Cross-session visibility | No | No | Manager View | Unified dashboard |
Winner: Nimbalyst for session management. Antigravity’s Manager View is a solid step forward for an IDE, with inbox-style tracking and workspace-based isolation. But Nimbalyst’s kanban board with automatic status tracking, tagging, filtering, and mobile access is purpose-built for this workflow.
Visual Tools
| Feature | Cursor | Windsurf | Antigravity | Nimbalyst |
|---|---|---|---|---|
| Markdown editor | Preview only | Preview only | Preview only | WYSIWYG with AI |
| Diagramming | No | No | No | Excalidraw integration |
| Mockup creation | No | No | No | MockupLM |
| Data model design | No | No | No | DataModelLM |
| Browser preview | No | No | Yes (built-in Chrome) | No |
Winner: Nimbalyst for visual planning tools. Antigravity’s built-in browser is useful for front-end verification, but it is not a planning tool. Nimbalyst treats documents, diagrams, and mockups as first-class citizens alongside code.
Mobile Access
| Feature | Cursor | Windsurf | Antigravity | Nimbalyst |
|---|---|---|---|---|
| Mobile app | No | No | No | iOS app |
| Remote session monitoring | No | No | No | Yes |
| Mobile diff review | No | No | No | Yes |
| Mobile agent control | No | No | No | Yes |
Winner: Nimbalyst. None of the IDEs offer mobile access. Nimbalyst’s iOS app lets you monitor sessions, review diffs, and respond to agent questions from your phone.
Open Source & Trust
| Feature | Cursor | Windsurf | Antigravity | Nimbalyst |
|---|---|---|---|---|
| Open source | Closed source | Closed source | Closed source (Google) | MIT (desktop and iOS apps) |
| Self-hostable | No | No | No | Yes — fork or run from source |
| Read the source | No | No | No | github.com/Nimbalyst/nimbalyst |
| Community-buildable extensions | VS Code extensions | Limited | VS Code extensions | MCP extensions, custom editors |
Winner: Nimbalyst. All three IDEs are closed source. You cannot read the code, audit it, or fork it. Nimbalyst is open source — the desktop and iOS apps are MIT licensed and the source is on GitHub. See the open source page for licensing and the tech stack.
Pricing
| Plan | Cursor | Windsurf | Antigravity | Nimbalyst |
|---|---|---|---|---|
| Free tier | Limited | Limited | Public preview (limited) | Full app (free) |
| Pro | $20/month | $15/month | ~$20/month | Free (bring your own API keys) |
| Team | $40/month/seat | $35/month/seat | ~$40-60/seat | Free |
Winner: Nimbalyst on price. The app is free. You pay only for the underlying AI usage (your Anthropic/OpenAI API keys or Max subscription). The three IDEs all charge monthly subscriptions on top of AI costs. Antigravity’s pricing has been a source of controversy, with unclear credit systems and reduced free-tier limits.
Who Should Use What
Choose Cursor if:
- You want a complete IDE replacement with one app for everything, including manual code editing
- You are already in the VS Code ecosystem and want your extensions and keybindings
- Your workflow is primarily single-session: one feature at a time, hands-on-keyboard coding with AI assist
- You want inline autocomplete as your primary AI interaction
Choose Windsurf if:
- You want an AI-first IDE with less VS Code baggage
- Cascade’s multi-step reasoning fits your workflow better than chat-based interaction
- You prefer a simpler interface with fewer configuration options
- You are cost-sensitive and want a slightly cheaper IDE option
Choose Antigravity if:
- You want parallel agents inside a full IDE with Google’s ecosystem
- Built-in Chrome browser testing matters for your front-end workflow
- You want Gemini models as your default with the option to use Claude or GPT
- You like the idea of a Manager View for orchestrating agents without leaving your editor
Choose Nimbalyst if:
- You use Claude Code or Codex as your primary coding tool and want a visual layer on top
- You regularly run multiple agent sessions in parallel and need to manage them
- Your workflow includes visual work (planning docs, architecture diagrams, UI mockups) alongside coding
- You want mobile access to monitor and control agents from your phone
- You want the best AI models (Claude Opus, Codex) without the quality trade-offs of IDE-embedded models
The Deeper Question
The real question is not “which tool has more features?” It is “where does the human add value?”
Cursor and Windsurf answer: the human adds value by writing and editing code, with AI as an assistant. The developer is still the primary author.
Antigravity sits in the middle: it is still an IDE, but the Manager View acknowledges that orchestrating multiple agents is a distinct workflow worth its own interface.
Nimbalyst answers: the human adds value by deciding what to build, planning the approach, reviewing the output, and managing multiple streams of work. The AI agent is the primary author. The human is the manager.
As AI agents get more capable (and they are getting more capable fast), the management-oriented approach becomes more compelling. Running five Claude Code sessions in parallel, steering them toward the right outcomes, and reviewing their work is a fundamentally different and more leveraged way to develop software.
If you are ready to try that workflow, download Nimbalyst free.
Frequently Asked Questions
Windsurf vs Antigravity: which is better?
Windsurf and Antigravity solve different problems. Windsurf is a polished AI-first IDE built around Cascade, a multi-step agent that maintains context across actions. Antigravity is a VS Code fork with a built-in Manager View for orchestrating up to five parallel agents and a built-in Chrome browser for visual verification. Pick Windsurf if you want the cleanest single-session AI IDE. Pick Antigravity if you want parallel agents and browser testing in one window.
Is Antigravity free?
Antigravity has a public preview with limited free access. Google’s pricing for paid tiers has been a source of controversy, with unclear credit systems and reduced free-tier limits over time. Windsurf Pro is $15 per month. Cursor Pro is $20 per month. Nimbalyst is free for individuals and you bring your own API keys or Claude or OpenAI subscription.
Cursor vs Windsurf vs Antigravity: which has the best parallel agents?
Antigravity ships with the Manager View for up to five parallel agents. Cursor 2.0 added parallel agent sessions for up to eight. Windsurf does not have a comparable parallel agent dashboard. For pure parallel agent workflow, Antigravity (inside an IDE) and Nimbalyst (outside an IDE, with kanban and worktrees) are the two strongest options.
Does Antigravity work with Claude Code?
Antigravity is a Google product that defaults to Gemini 3.1 Pro and Flash. It also supports Claude and GPT models. It does not run the Claude Code CLI or use Anthropic’s Claude Code agent harness. For workflows built around Claude Code itself, Nimbalyst runs the actual Claude Code CLI underneath with a visual layer on top, alongside Codex.
What is the cheapest option among Cursor, Windsurf, Antigravity, and Nimbalyst?
Nimbalyst is the cheapest in the long run because the app is free and you only pay for the underlying AI usage. Windsurf Pro at $15 per month is the cheapest paid IDE. Cursor Pro at $20 per month and Antigravity at roughly $20 per month sit in the middle. Antigravity’s free preview is the cheapest entry point for short-term evaluation.
Is Nimbalyst an IDE?
No. Nimbalyst is an AI-native workspace, not an IDE. It does not replace VS Code or Cursor as your primary code editor. Instead, it runs Claude Code or Codex as the execution engine and provides a visual workspace around them: kanban-style session management, optional one-click git worktree isolation per session, inline diff review, visual editors for markdown, mockups, diagrams, and data models, and an iOS companion app.
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