Google Antigravity vs Kane CLI (2026): Pricing, Features & Which to Choose

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

Lower starting price
Not comparable
Not comparable: Google Antigravity does not list a price
Free plan
Tie
Both have one
Higher rating
Google Antigravity
4.2 against 3.9
Same job?
Yes
Both are Coding tools

Side by side

Compared on	Google Antigravity	Kane CLI
Our rating	4.2Better	3.9
Starts at	Free	$19/mo
Free plan	Yes	Yes
Category	Coding	Coding
Plans	Free	From $19/mo
Key features	Agents that act across editor, terminal, and browser Built on a VS Code foundation Support for Gemini 3 Pro, Claude Sonnet 4.5, and GPT-OSS models Both synchronous editing and agent-first interaction modes Free for individuals during public preview	Terminal-native browser automation for AI coding agents and developers Contextual test authoring from a single natural-language prompt Parallel test execution across multiple browser sessions One-command export to native Playwright code Automated bug discovery during flow execution
Pros	Cross-surface agent action, including the browser, is a genuine differentiator Model choice spans multiple leading providers, not just Google's own Free access during public preview	Free to install and run locally, with cloud costs only kicking in for scaled execution Playwright export avoids vendor lock-in for teams that later want to run tests outside Kane Built by a testing company (TestMu AI, ex-LambdaTest) with almost a decade of QA infrastructure behind it
Cons	Very new product still in public preview, features may change Overlaps with Google's other coding tools in this category, worth comparing directly Longer-term pricing after preview hasn't been established	Requires a TestMu AI account even for local runs, tying the tool to a broader platform Launched April 2026, so third-party reviews and community troubleshooting resources are still thin Cloud-grid credits add a second cost dimension beyond the flat monthly subscription price
Company	Google, founded 2025	TestMu AI (formerly LambdaTest), founded 2017

Prices come from each vendor's pricing page, last checked 20260807. Check the vendor before you buy.

FAQ

Questions people ask

Is Google Antigravity better than Kane CLI?

In our reviews Google Antigravity scores 4.2 and Kane CLI scores 3.9. The better pick depends on the job. Google Antigravity: Google's agent-first IDE that can act inside the browser too. Kane CLI: Terminal-based browser automation tool that lets AI coding agents verify their own code visually.

Which is cheaper, Google Antigravity or Kane CLI?

Google Antigravity: free. Kane CLI: from $19/mo.

Do Google Antigravity and Kane CLI have free plans?

Yes, both have a free plan.

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