Grok
Our pickChatGPT
Tier-list head-to-head. ChatGPT takes the A-tier slot — here's the breakdown.
Spec sheet
| Grok | ChatGPT | |
|---|---|---|
| Tier | B-tier | A-tierwin |
| Overall score | 7.5 / 10 | 8.8 / 10win |
| 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. | Everyone. |
| Last reviewed | 2026-05-19 | 2026-05-19 |
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 eager generalist”
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 vs GPT-5.5 (launched 2026-04-23; scores below are the GPT-5.4 baseline -- GPT-5.5 launch benchmarks per OpenAI are logged in Known Issues, pending third-party verification)
| Benchmark | Grok | ChatGPT |
|---|---|---|
| MMLU | 88.5% | 91% |
| GPQA Diamond | 85% | 92.8% |
| HumanEval | 90% | 95% |
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 GrokEveryone. Seriously -- if you're new to AI or want the most complete all-in-one package, ChatGPT is the default recommendation.
Visit ChatGPTBottom line
ChatGPT is the clear winner: 8.8/10 (A-tier) versus 7.5/10 (B-tier). Grok isn't a bad tool, but on every category that drives the overall score, ChatGPT 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 (Grok starts $0, ChatGPT 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 ChatGPT when everyone. The two tools aren't fighting for the same person -- they're aiming at adjacent jobs that occasionally overlap. If you're squarely in ChatGPT's lane, the tier-list ranking and the use-case fit point the same direction; if you're in Grok's lane, the score gap matters less than the fit.
Bottom line: ChatGPT is the better tool for most people right now. Pick Grok only when people who live on x/twitter and want an ai that can tap into that data in real-time -- that's its lane, and inside that lane it still earns its place.
Keep digging
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.