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.

Tabnine
Tabnine's own models (local + cloud)
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 | 6.3 / 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. | Tabnine's own models (local + cloud) |
| Free tier | Yes | Yes |
| Starting price | $0 | $0 |
| Best for | Developers working on large, multi-file projects who want to parallelize their workflow. | Existing Tabnine enterprise customers and Tricentis shops that want the Enterprise Context Engine inside th… |
| Last reviewed | 2026-10-15 | 2026-10-06 |
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 AntigravityExisting Tabnine enterprise customers and Tricentis shops that want the Enterprise Context Engine inside their QA pipeline. Not a tool to adopt fresh in October 2026.
Visit TabnineBottom line
Google Antigravity is the clear winner: 8.0/10 (A-tier) versus 6.3/10 (C-tier). Tabnine 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, Tabnine 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 Tabnine when existing tabnine enterprise customers and tricentis shops that want the enterprise context engine inside their qa pipeline. 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 Tabnine's lane, the score gap matters less than the fit.
Bottom line: Google Antigravity is the better tool for most people right now. Pick Tabnine only when existing tabnine enterprise customers and tricentis shops that want the enterprise context engine inside their qa pipeline -- 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 Tabnine review
Tier C · 6.3/10
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Built from our daily AI-tool sweep, last touched October 15, 2026. Honest tier-list reviews — no affiliate-link pieces disguised as advice. See the rubric or how we review.