Google Antigravity
Free tier available
- Free$0
- Pro$20/mo
- Ultra$249.99/mo
Our pickGoogle Antigravity
Gemini 3.5 Flash / Gemini 3.1 Pro / Claude Opus 4.6 / GPT-OSS 120B (multi-model). Gemini 3.5 Flash added at I/O 2026 (2026-05-19) and is the model behind the antigravity-preview-05-2026 Managed Agent.

Bolt.new
Tier-list head-to-head. Google Antigravity takes the A-tier slot — here's the breakdown.
Spec sheet
| Tier | A-tierwin | C-tier |
| Overall score | 8.0 / 10win | 6.5 / 10 |
| Powered by | Gemini 3.5 Flash / Gemini 3.1 Pro / Claude Opus 4.6 / GPT-OSS 120B (multi-model). Gemini 3.5 Flash added at I/O 2026 (2026-05-19) and is the model behind the antigravity-preview-05-2026 Managed Agent. | — |
| Free tier | Yes | Yes |
| Starting price | $0 | $0 |
| Best for | Developers working on large, multi-file projects who want to parallelize their workflow. | Non-developers who want to quickly prototype a web app idea and don't need production quality. |
| Last reviewed | 2026-05-20 | 2026-05-19 |
Head-to-head
Rated 1-10 on the same rubric across all 130 tools we cover.
What you'll pay
Look past the headline number -- entry-tier limits drive most cost surprises.
Free tier available
Free tier available
The decision
Use-case anchors and category strengths, side by side.
Developers working on large, multi-file projects who want to parallelize their workflow. If you regularly work on 3-5 tasks simultaneously (fix a bug, add a feature, write tests, refactor), Antigravity's multi-agent architecture is unmatched.
Visit Google AntigravityNon-developers who want to quickly prototype a web app idea and don't need production quality. Also useful for developers who want to scaffold boilerplate fast and then take over manually.
Visit Bolt.newBottom line
Google Antigravity is the clear winner: 8.0/10 (A-tier) versus 6.5/10 (C-tier). Bolt.new isn't a bad tool, but on every category that drives the overall score, Google Antigravity comes out ahead. The tier gap is repeatable -- not methodology noise -- and the day-to-day experience reflects it.
Pricing-wise, both tools have a free tier (Google Antigravity starts $0, Bolt.new starts $0), so you can test either without committing. Compare what each free tier actually unlocks -- usage caps, model access, and feature gates differ a lot more than the headline price suggests, especially as both vendors have tightened limits in 2026.
By use case: pick Google Antigravity when developers working on large, multi-file projects who want to parallelize their workflow. Pick Bolt.new when non-developers who want to quickly prototype a web app idea and don't need production quality. The two tools aren't fighting for the same person -- they're aiming at adjacent jobs that occasionally overlap. If you're squarely in Google Antigravity's lane, the tier-list ranking and the use-case fit point the same direction; if you're in Bolt.new's lane, the score gap matters less than the fit.
Bottom line: Google Antigravity is the better tool for most people right now. Pick Bolt.new only when non-developers who want to quickly prototype a web app idea and don't need production quality -- that's its lane, and inside that lane it still earns its place.
Keep digging
Full Google Antigravity review
Tier A · 8.0/10
Full Bolt.new review
Tier C · 6.5/10
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Built from our daily AI-tool sweep, last touched May 20, 2026. Honest tier-list reviews — no affiliate-link pieces disguised as advice. See the rubric or how we review.