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.

Notion AI
Tier-list head-to-head. Google Antigravity takes the A-tier slot — here's the breakdown.
Spec sheet
| Tier | A-tierwin | B-tier |
| Overall score | 8.0 / 10win | 7.0 / 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 | Yeswin | No |
| Starting price | $0 | $10 |
| Best for | Developers working on large, multi-file projects who want to parallelize their workflow. | Teams already deep in Notion who want AI assistance without adding another tool to the stack. |
| 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
No free tier
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 AntigravityTeams already deep in Notion who want AI assistance without adding another tool to the stack.
Visit Notion AIBottom line
Google Antigravity is the clear winner: 8.0/10 (A-tier) versus 7.0/10 (B-tier). Notion AI 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.
On pricing, Google Antigravity starts free while Notion AI requires a paid plan from day one ($10+). If you're testing the waters or running an occasional workload, that gap matters more than the score differential. Google Antigravity starts at $0; Notion AI starts at $10. Compare what each entry tier actually unlocks before you compare list prices -- the limits matter more than the headline number.
By use case: pick Google Antigravity when developers working on large, multi-file projects who want to parallelize their workflow. Pick Notion AI when teams already deep in notion who want ai assistance without adding another tool to the stack. 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 Notion AI's lane, the score gap matters less than the fit.
Bottom line: Google Antigravity is the better tool for most people right now. Pick Notion AI only when teams already deep in notion who want ai assistance without adding another tool to the stack -- 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 Notion AI review
Tier B · 7.0/10
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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.