Grok
Free tier available
- Free$0
- X Premium$8/mo
- X Premium+$40/mo
Our pickB
7.5/10Grok
VS
B
7.4/10Devin
Cognition proprietary orchestration over Claude / GPT / Gemini + Devin's own tuned components
Grok vs Devin
Tier-list head-to-head. Grok takes the B-tier slot — here's the breakdown.
Last reviewed May 19, 2026· sweep-fresh
Spec sheet
At a glance
| Grok | Devin | |
|---|---|---|
| Tier | B-tierwin | B-tier |
| Overall score | 7.5 / 10win | 7.4 / 10 |
| Powered by | — | Cognition proprietary orchestration over Claude / GPT / Gemini + Devin's own tuned components |
| Free tier | Yeswin | No |
| Starting price | $0 | $20 |
| Best for | People who live on X/Twitter and want an AI that can tap into that data in real-time. | Development teams that want to offload well-scoped tasks like bug fixes, test writing, and boilerplate code… |
| Last reviewed | 2026-05-19 | 2026-05-13 |
Head-to-head
Score showdown
Rated 1-10 on the same rubric across all 130 tools we cover.
Ease of use+0.5 Grok
Grok
7.0
Devin
6.5
Output quality+0.5 Devin
Grok
7.5
Devin
8.0
Value+0.5 Grok
Grok
7.5
Devin
7.0
FeaturesTie
Grok
8.0
Devin
8.0
Overall+0.1 Grok
Grok
7.5
Devin
7.4
What you'll pay
Pricing snapshot
Look past the headline number -- entry-tier limits drive most cost surprises.
Devin
No free tier
- Core$20/mo
- Team$40/mo
Benchmark Head-to-Head
Grok 4.20 benchmarks — Devin has no published benchmarks
| Benchmark | Description | Score |
|---|---|---|
| MMLU | Knowledge across 57 subjects | 88.5% |
| GPQA Diamond | Graduate-level science questions | 85% |
| HumanEval | Python code generation | 90% |
| Humanity's Last Exam | Frontier difficulty questions | 50.7% |
The decision
Which should you pick?
Use-case anchors and category strengths, side by side.
Pick Grokif…
B
7.5/10- ✓Free tier lets you actually try it before paying
- ✓People who live on X/Twitter and want an AI that can tap into that data in real-time.
- ✓Also good for users who find mainstream chatbots too sanitized and want something with more personality.
People who live on X/Twitter and want an AI that can tap into that data in real-time. Also good for users who find mainstream chatbots too sanitized and want something with more personality.
Visit GrokPick Devinif…
B
7.4/10- ✓Development teams that want to offload well-scoped tasks like bug fixes, test writing, and boilerplate code to an autonomous agent.
- ✓Best when the task description is detailed and specific.
Development teams that want to offload well-scoped tasks like bug fixes, test writing, and boilerplate code to an autonomous agent. Best when the task description is detailed and specific.
Visit DevinBottom line
The verdict
Grok (B-tier, 7.5/10) and Devin (B-tier, 7.4/10) are within margin-of-error of each other on overall score. There's no decisive winner -- the right pick comes down to how you'll actually use the tool, not which scored higher in the abstract. We rate them on the same rubric (ease of use, output quality, value, features), and on this pair the rubric is calling it a draw.
On pricing, Grok starts free while Devin requires a paid plan from day one ($20+). If you're testing the waters or running an occasional workload, that gap matters more than the score differential. Grok starts at $0; Devin starts at $20. Compare what each entry tier actually unlocks before you compare list prices -- the limits matter more than the headline number.
By use case: pick Grok when people who live on x/twitter and want an ai that can tap into that data in real-time. Pick Devin when development teams that want to offload well-scoped tasks like bug fixes, test writing, and boilerplate code to an autonomous agent. The two tools aren't fighting for the same person -- they're aiming at adjacent jobs that occasionally overlap. If you're squarely in Grok's lane, the tier-list ranking and the use-case fit point the same direction; if you're in Devin's lane, the score gap matters less than the fit.
Bottom line: this pair is a coin flip on raw scores. Choose by use-case fit, free-tier availability, and which one you can actually try without committing. Re-evaluate in 60-90 days -- both vendors are shipping fast in 2026.
Keep digging
Compare more & explore
Built from our daily AI-tool sweep, last touched May 19, 2026. Honest tier-list reviews — no affiliate-link pieces disguised as advice. See the rubric or how we review.