Our pickClaude (Anthropic)
Grok
Tier-list head-to-head. Claude (Anthropic) takes the A-tier slot — here's the breakdown.
Spec sheet
| Claude (Anthropic) | Grok | |
|---|---|---|
| Tier | A-tierwin | B-tier |
| Overall score | 8.5 / 10win | 7.5 / 10 |
| Free tier | Yes | Yes |
| Starting price | $0 | $0 |
| Best for | Writers, analysts, developers, and anyone who values quality of output over quantity of features. | People who live on X/Twitter and want an AI that can tap into that data in real-time. |
| Last reviewed | 2026-05-14 | 2026-05-14 |
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 thoughtful consultant”
“The irreverent contrarian”
What you'll pay
Look past the headline number -- entry-tier limits drive most cost surprises.
Free tier available
Free tier available
Claude Opus 4.7 (4.6 baseline scores shown; 4.7 announced 13% coding lift, 3x production task completion) vs Grok 4.20
| Benchmark | Claude (Anthropic) | Grok |
|---|---|---|
| MMLU | 91.3% | 88.5% |
| GPQA Diamond | 91.3% | 85% |
| HumanEval | 94% | 90% |
The decision
Use-case anchors and category strengths, side by side.
Writers, analysts, developers, and anyone who values quality of output over quantity of features. If you care about how good the actual text is, Claude is the best.
Visit Claude (Anthropic)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 GrokBottom line
Claude (Anthropic) is the clear winner: 8.5/10 (A-tier) versus 7.5/10 (B-tier). Grok isn't a bad tool, but on every category that drives the overall score, Claude (Anthropic) 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 (Claude (Anthropic) starts $0, Grok 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 Claude (Anthropic) when writers, analysts, developers, and anyone who values quality of output over quantity of features. Pick Grok when people who live on x/twitter and want an ai that can tap into that data in real-time. The two tools aren't fighting for the same person -- they're aiming at adjacent jobs that occasionally overlap. If you're squarely in Claude (Anthropic)'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: Claude (Anthropic) 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
Full Claude (Anthropic) review
Tier A · 8.5/10
Full Grok review
Tier B · 7.5/10
Claude (Anthropic) alternatives
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Grok alternatives
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Built from our daily AI-tool sweep, last touched May 14, 2026. Honest tier-list reviews — no affiliate-link pieces disguised as advice. See the rubric or how we review.