Google Antigravity is the boldest rethink of the IDE in 2026. Instead of an editor with an AI bolted on, it's an agent-first workspace — you brief autonomous agents, they plan, write, test and debug across the whole project, and you review the receipts. Powered by Gemini 3 and built on a VS Code fork, it's genuinely novel. It's also less stable than the incumbents, which is why most developers keep it as a second tool.
Rating: 4.1/5
Verdict: Antigravity nails the agent-orchestration idea — Trust Artifacts and in-browser verification are legitimately ahead of the field. But instability, an opaque credit system and a model that doesn't lead benchmarks make it a complement to Cursor or Claude Code, not a replacement.
Best for: developers deep in the Google/Gemini ecosystem who want agent orchestration and strong front-end verification, and are comfortable on the bleeding edge.
What is Google Antigravity?
Antigravity, released November 18, 2025, is Google's agent-first development platform. It's a VS Code fork, so the editor feels familiar, but the center of gravity is the Manager surface: a place to dispatch and orchestrate multiple agents that work across files, run tests and debug on their own. It effectively became Google's flagship agentic developer surface as the free Gemini CLI wound down in mid-2026.
The pitch is that you operate at a higher level — describe outcomes, not keystrokes — while agents handle execution and report back. When it works, it feels like managing a small team rather than typing code. When it doesn't, you're debugging the agent instead of the app.
Trust Artifacts and the browser
The best part of Antigravity is how it earns trust. As agents work, they produce Trust Artifacts — task lists, implementation plans and screenshots — so you can see exactly what was done and why before you merge. It's a direct answer to the "black box agent" problem that makes people nervous about autonomy.
Backing that is a built-in Chromium browser. For front-end work, an agent can actually load the page, click through the change and screenshot the result to verify its own output visually. That closed loop — write, run, look, confirm — is something most coding tools still can't do natively, and it's Antigravity's clearest edge.
Models and performance
Antigravity ships Gemini 3.1 Pro and Claude Opus 4.6 as its default models, with the free tier running the lighter Gemini Flash. The multi-model setup is smart — you're not locked to Google's model for hard problems. But the headline SWE-bench numbers don't lead the field, and in practice output quality is good rather than best-in-class.
Stability is the bigger issue. Reviewers consistently flag flakiness — agents that stall, credit meters that drain faster than expected, and rough edges you don't hit on mature tools. It's a first-generation product doing something genuinely hard, and it shows.
Antigravity pricing in 2026
Antigravity rides Google's AI subscription tiers, metered by agent requests and credits rather than a flat seat.
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | ~20 agent requests/day on Gemini Flash. |
| AI Pro | $20/mo | ~100 requests/day, more capable models. |
| AI Ultra | $249.99/mo | High-volume access, no weekly cap. |
| Extra credits | $25 | Add-on pack of 2,500 credits. |
The free tier is a real way to try the workflow, though Google tightened those launch limits in March 2026 and drew complaints for it. The jump from $20 Pro to $249.99 Ultra is steep — there's no middle tier — so heavy agent users can find themselves buying credit packs or facing the Ultra bill fast. Budget for the credit system, not just the sticker price.
Pros and cons
After a week orchestrating agents across real projects, here's the honest ledger.
Pros
- Genuinely novel agent-first, Manager-driven workflow
- Trust Artifacts make agent work reviewable
- Built-in browser verifies front-end changes visually
- Multi-model: Gemini 3.1 Pro and Claude Opus 4.6
- Free tier to try the whole paradigm
Cons
- Instability and rough edges vs mature IDEs
- Opaque, fast-draining credit system
- Big $20 → $249.99 gap with no middle tier
- SWE-bench score doesn't lead the field
- Launch free limits were cut in March 2026
Who Antigravity is for
Pick Antigravity if you're already in the Google and Gemini ecosystem, you're excited by agent orchestration, and you do enough front-end work to value the built-in browser verification. Early adopters who like operating at the "manage a team of agents" level will get real value — and the Trust Artifacts make that autonomy far less scary than it sounds.
For a stable all-day driver, though, Cursor and Claude Code are still the safer picks, and the full head-to-head is in Antigravity vs Cursor. Most developers we know run Antigravity alongside one of them — orchestration and browser checks here, day-to-day coding there.
As a first-generation agent-first IDE, Antigravity is ambitious and often impressive, and it earns 4.1/5. The ideas are ahead of the polish; if Google steadies the platform, this is a genuine glimpse of where IDEs are going.
Frequently Asked Questions
What is Google Antigravity?
Google Antigravity is an agent-first AI IDE released November 18, 2025. Built on a VS Code fork and powered by Gemini 3, it lets autonomous agents plan, write, test and debug across your whole project, with a Manager surface to orchestrate multiple agents at once.
How much does Antigravity cost?
There's a Free tier ($0) with about 20 agent requests a day on Gemini Flash, AI Pro at $20/mo with roughly 100 requests a day and more capable models, and AI Ultra at $249.99/mo for high-volume use with no weekly cap. Extra credit packs are 2,500 for $25.
What are Trust Artifacts?
Trust Artifacts are the task lists, implementation plans and screenshots Antigravity generates as it works, so you can review what an agent did and why before merging. They're the product's answer to the "black box agent" problem.
What models power Antigravity?
Antigravity ships Gemini 3.1 Pro and Claude Opus 4.6 as its default models, and the free tier runs Gemini Flash. It also includes a built-in Chromium browser so agents can visually verify front-end changes.
Is Antigravity better than Cursor?
Not as an all-day driver. Antigravity is more of an agent-orchestration layer with strong browser verification and Trust Artifacts, but it's less stable and its model doesn't lead benchmarks. Most reviewers treat it as a complement to Cursor or Claude Code, not a replacement. See our Antigravity vs Cursor comparison.
Did Antigravity replace Gemini CLI?
Largely, yes. Google began winding down the free Gemini CLI in mid-2026 and steered users to Antigravity as its flagship agentic developer surface. Paid Cloud, API-key and Code Assist customers retain CLI support, but Antigravity is now the focus.