What are the main alternatives to Google Antigravity?
The main Antigravity alternatives are Cursor, Devin Desktop (formerly Windsurf), Kiro and GitHub Copilot if you want an AI editor, and Claude Code, OpenAI's Codex, Copilot CLI and OpenCode if you mainly use Antigravity CLI. For a free start, Copilot Free, Kiro Free and open source agents with your own model key are the usual picks.
Antigravity covers three jobs at once: an agent manager app, an editor and a terminal client. Most alternatives do one or two of those well, so the right choice depends on which part of Antigravity you actually use.
Why look for an Antigravity alternative?
Google Antigravity offers "native agentic assistance across purpose-built product surfaces": a desktop app "for launching, orchestrating, and inspecting autonomous agent teams," editor integrations and a CLI. As of October 2026, its pricing page lists a $0 plan with "Basic weekly rate limits," higher limits on Google AI Pro and Ultra, and business plans "starting at $30 USD per seat per month." See the Antigravity guide for the full picture.
The usual reasons to look around:
- Unpredictable limits. Google's plans docs say baseline limits "are primarily determined by available capacity" and are "subject to modification." Free users get "A meaningful quota, refreshed weekly," with no published number.
- Model changes. The models page says Claude Sonnet 4.6, Claude Opus 4.6 and GPT-OSS 120B "Will be removed on November 2, 2026." Claude Sonnet 5.5 and Opus 5.5 are listed for Google AI Pro (non-trial subscriptions only), Ultra and Enterprise, so after November 2 the page lists no Claude model for the Free and Google AI Plus tier.
- The Gemini CLI move. Google's transition post says Gemini CLI stopped serving free and Google AI Pro or Ultra users on June 18, 2026, which pushed many terminal users to Antigravity CLI or elsewhere.
- Fit. Some people want a lighter editor, a different model provider or an open source tool.
How do the main Antigravity alternatives compare?
Prices are the cheapest way in, as of October 2026, from each vendor's official pricing page.
| Tool | Replaces which part | Price to start | Good fit if you | Deep comparison |
|---|---|---|---|---|
| Cursor | Editor, agents, CLI | Free; Plus $8/mo; Premium $30/mo | Want a full AI editor with many models | Cursor vs Antigravity |
| Claude Code | CLI, desktop agent app | Claude Pro $20/mo | Want Claude models without Antigravity's plan rules | Claude Code vs Antigravity |
| Devin Desktop | Editor, cloud agents | Free; Pro $20/mo | Want an editor plus Devin cloud agents | Devin Desktop guide |
| Kiro | Editor, CLI, web | Free (50 credits); Pro $20/mo | Want written specs before code | Kiro guide |
| GitHub Copilot | Editor extension, CLI, desktop app | Free; Pro $10/mo | Want to stay in VS Code or JetBrains | Claude Code vs Copilot |
| Codex | CLI, IDE extension, desktop app, web | ChatGPT Free (desktop app, limited); Plus $20/mo | Already pay for ChatGPT | Codex vs Gemini CLI |
| Gemini CLI | CLI | Paid Gemini API key | Want Gemini in the terminal on API billing | Gemini CLI vs Claude Code |
| OpenCode | CLI, desktop app | Free software; optional OpenCode Go $10/mo | Want open source and any model, including local | OpenCode vs Claude Code |
Which agent-first IDEs are closest to Antigravity?
Cursor is the most direct swap for the editor. cursor.com/pricing lists "Cloud agents & automations" from Premium at $30 a month, plus third-party models at API list price. It also has a CLI. The Cursor vs Antigravity page goes feature by feature.
Devin Desktop is the renamed Windsurf editor. Devin's pricing lists a Free plan with "Unlimited Tab completions," Pro at $20 a month with Devin cloud agents, and Max at $200.
Kiro has an IDE, a CLI and a web version, and it drafts requirements, a design and tasks before writing code, an approach Kiro calls spec-driven development. Kiro's pricing starts at Free with 50 credits, then Pro at $20 with 1,000 credits.
GitHub Copilot suits people who would rather stay in VS Code, Visual Studio or JetBrains. GitHub's plans page lists Free, Pro at $10 a month and Pro+ at $39.
For Antigravity's agent manager, the closest matches are apps that run several sessions at once: the Claude Code desktop app lets you "run multiple sessions side by side," and the GitHub Copilot app can "Run multiple agent sessions at the same time, each on its own branch." Codex also has a desktop app. If you are comparing editors in general, see Cursor alternatives and GitHub Copilot alternatives.
Which terminal agents can replace Antigravity CLI?
- Claude Code is "an agentic coding tool that reads your codebase, edits files, runs commands, and integrates with your development tools," per its overview. It needs a paid Claude plan or a Claude Console account.
- Codex CLI is open source under Apache 2.0 and is included from ChatGPT Plus at $20 a month, per OpenAI's pricing page.
- GitHub Copilot CLI lets you "use Copilot directly from your terminal," with models from several providers billed in AI credits.
- OpenCode (MIT) works with many providers, and its providers docs describe built-in discovery for Ollama, LM Studio and vLLM.
- Gemini CLI is still open source (Apache 2.0) and "will remain accessible via paid Gemini and Gemini Enterprise Agent Platform API keys," so it fits if you want Gemini models on API billing. See the Gemini CLI guide.
The Claude Code alternatives page compares these and other terminal agents side by side.
Which alternatives still have a usable free tier in 2026?
As of October 2026, from each vendor's pricing page:
- Copilot Free: "Limited chat and agent usage." Students can get Copilot Student at no cost.
- Kiro Free: 50 credits a month.
- Devin Desktop Free: a "Light quota to code with agents" and unlimited Tab completions.
- Cursor Free: "Limited agent requests" and "Limited Chat requests."
- Codex in ChatGPT Free: the desktop app with GPT-6 Luna, "subject to rollout."
- Zed Personal: free with your own API keys or external agents, per zed.dev/pricing.
- Open source agents: OpenCode, Cline, Aider and Goose cost nothing as software. With a local model you pay nothing per token, but you need capable hardware.
How do usage limits compare with Antigravity's quotas?
Antigravity doesn't publish numbers, so a precise comparison isn't possible. What each vendor does publish, as of October 2026:
| Tool | How usage is measured |
|---|---|
| Antigravity | Quota refreshed weekly on the free plan; Pro and Ultra refresh every five hours up to a weekly limit; Pro and Ultra can use purchased AI credits for overages |
| Cursor | A shared usage pool; Premium has 4x, Super 15x and Ultra 50x the usage of Plus |
| GitHub Copilot | AI credits at $0.01 each; Pro includes $15 of credits a month ($10 base plus $5 flex) |
| Kiro | Credits per month (1,000 on Pro), add-on credits at $0.04 each |
| Codex | Estimated local messages per five-hour period on Plus; "Pro plans currently have no five-hour limit"; weekly limits may apply |
| Claude Code | Shares your Claude plan's limits; Max offers 5x or 20x Pro's usage |
Published allowances like Copilot's credits or Kiro's credits make spend easier to predict. Capacity-based quotas like Antigravity's can be generous one week and tight the next.
How do you bring your rules, skills and MCP servers with you?
Rules. Antigravity's rules docs list AGENTS.md or GEMINI.md in any folder of your project, plus .agents/rules/*.md. Keep shared rules in AGENTS.md: Cursor, Codex, Kiro and OpenCode read it, and Copilot supports it alongside a root GEMINI.md. Claude Code reads AGENTS.md when there is no CLAUDE.md. Rules in .agents/rules/ are Antigravity's own format, so fold them into AGENTS.md before you switch. The AGENTS.md guide explains the format.
Skills. Antigravity's workspace skills live in .agents/skills/. Cursor, Codex and GitHub Copilot read that folder too, so those skills work as they are. Claude Code reads .claude/skills/, so copy or link the folder there. The Agent Skills guide covers the shared format.
MCP servers. Each tool keeps its own MCP config, so add your servers again in the new tool.
That makes your instructions the most portable part of your setup, as long as they live somewhere you control. Kipt keeps your prompts and skills as Markdown in a private GitHub repo you own and installs every skill into Claude Code or Codex with npx skills add https://github.com/<you>/<repo>.git --all -g. The free SKILL.md generator turns a prompt into a skill folder in your browser.