Our pickGrok
Microsoft Copilot
Tier-list head-to-head. Grok takes the B-tier slot — here's the breakdown.
Spec sheet
| Grok | Microsoft Copilot | |
|---|---|---|
| Tier | B-tier | B-tier |
| Overall score | 7.5 / 10 | 7.5 / 10 |
| Free tier | Yes | Yes |
| Starting price | $0 | $0 |
| Best for | People who live on X/Twitter and want an AI that can tap into that data in real-time. | Users already deep in the Microsoft ecosystem who want free GPT-4 access with web search built in. |
| Last reviewed | 2026-05-19 | 2026-04-21 |
Head-to-head
Rated 1-10 on the same rubric across all 130 tools we cover.
Vibe check
How each tool actually sounds when you talk to it.
“The irreverent contrarian”
“The work-safe assistant”
What you'll pay
Look past the headline number -- entry-tier limits drive most cost surprises.
Free tier available
Free tier available
Grok 4.20 benchmarks — Microsoft Copilot 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
Use-case anchors and category strengths, side by side.
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 GrokUsers already deep in the Microsoft ecosystem who want free GPT-4 access with web search built in.
Visit Microsoft CopilotBottom line
Grok (B-tier, 7.5/10) and Microsoft Copilot (B-tier, 7.5/10) 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.
Pricing-wise, both tools have a free tier (Grok starts $0, Microsoft Copilot 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 Grok when people who live on x/twitter and want an ai that can tap into that data in real-time. Pick Microsoft Copilot when users already deep in the microsoft ecosystem who want free gpt-4 access with web search built in. 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 Microsoft Copilot'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
Full Grok review
Tier B · 7.5/10
Full Microsoft Copilot review
Tier B · 7.5/10
Grok alternatives
Other tools in this lane
Microsoft Copilot alternatives
Other tools in this lane
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.