The free alternative to Antigravity CLI
Agentic coding in your terminal — without Google’s editor fork.
In short
- Antigravity is Google’s agentic IDE — polished, Gemini-powered, fork of an editor.
- Freebuff is editor-agnostic — runs in your terminal inside VS Code, JetBrains, Vim, or Cursor.
- Both are free at launch; only Freebuff is structurally free long-term (ad-supported, not VC-subsidized).
- Antigravity is Gemini-only. Freebuff lets you switch models per task.
Antigravity is what happens when Google ships its answer to Cursor — an opinionated agentic IDE with Gemini deeply integrated. Freebuff is the same agent power in your existing terminal, without changing editors or vendors.
What Antigravity costs in 2026
Antigravity is free at launch. Long-term pricing is not finalized — expect Gemini API usage or seat fees similar to other Google dev tools. Budget ~$20/mo equivalent when comparing total cost of ownership.
Feature-by-feature: Freebuff CLI vs Antigravity
| Feature | Freebuff | Antigravity (Google) |
|---|---|---|
| Price | Free (permanent, ad-supported) | Free at launch; future pricing TBD |
| Editor | Use any editor | Antigravity IDE (forked editor) |
| Models | MiMo 2.6 Flash (default), GLM 5.3 Flash, DeepSeek V4.1 Flash, GPT-6 Luna, and more | Gemini 3.x only |
| Model choice per task | Yes | Locked to Gemini |
| Subagents bundled | 9 specialized | One general agent |
| Browser-use | Built-in subagent | Yes (built-in) |
| Data use | Models or features labeled “May use data for AI training” may keep submissions to develop, train, test, evaluate, fine-tune, and improve AI models or products, and Freebuff may share or sell them. | Google Cloud cloud-by-default |
When Antigravity wins
- You’re happy switching editors and love a tightly-integrated UX.
- You’re all-in on Gemini for its long-context and multimodal strengths.
- Cloud-first workflows where the agent running in Google’s cloud is a feature, not a tradeoff.
When Freebuff wins
- You don’t want to migrate editors — Freebuff goes wherever your terminal goes.
- You want vendor-agnostic model choice.
- You want a guaranteed-free tier, not a free preview that may change.
- Runs locally. Freebuff edits files locally but sends relevant prompts, code, files, and repository context to its servers and model providers. See the Privacy Policy for details.
Get the editor-agnostic free alternative
Install Freebuff inside any editor you already use.
Questions
Will Antigravity stay free?
No commitment yet. Like most launches, Antigravity’s pricing will likely evolve. Freebuff’s free tier is a permanent commitment funded by CLI ads.
Does Freebuff have a "cascade"-style multi-file agent loop like Antigravity?
Yes. Freebuff plans across files first, then applies edits in a single pass that you can review and approve, with the code-reviewer subagent verifying afterwards.