Grok logoOur pick
B
7.5/10

Grok

VS
GPT-5.4-Cyber (OpenAI) logo
B
7.2/10

GPT-5.4-Cyber (OpenAI)

Grok vs GPT-5.4-Cyber (OpenAI)

Tier-list head-to-head. Grok takes the B-tier slot — here's the breakdown.

Last reviewed May 14, 2026· sweep-fresh

Spec sheet

At a glance

 Grok logoGrokGPT-5.4-Cyber (OpenAI) logoGPT-5.4-Cyber (OpenAI)
TierB-tierwinB-tier
Overall score7.5 / 10win7.2 / 10
Free tierYeswinNo
Starting price$0Not publicly disclosed
Best forPeople who live on X/Twitter and want an AI that can tap into that data in real-time.Enterprise SOC teams, established security research orgs, and vetted individual defenders who can qualify f…
Last reviewed2026-05-142026-04-19

Head-to-head

Score showdown

Rated 1-10 on the same rubric across all 130 tools we cover.

Ease of use+2.0 Grok
Grok
7.0
GPT-5.4-Cyber (OpenAI)
5.0
Output quality+1.0 GPT-5.4-Cyber (OpenAI)
Grok
7.5
GPT-5.4-Cyber (OpenAI)
8.5
Value+0.5 Grok
Grok
7.5
GPT-5.4-Cyber (OpenAI)
7.0
FeaturesTie
Grok
8.0
GPT-5.4-Cyber (OpenAI)
8.0
Overall+0.3 Grok
Grok
7.5
GPT-5.4-Cyber (OpenAI)
7.2

What you'll pay

Pricing snapshot

Look past the headline number -- entry-tier limits drive most cost surprises.

Grok logo

Grok

Free tier available

  • Free$0
  • X Premium$8/mo
  • X Premium+$40/mo
GPT-5.4-Cyber (OpenAI) logo

GPT-5.4-Cyber (OpenAI)

No free tier

  • Trusted Access for Cyber (TAC) -- gatedNot publicly disclosed
  • ChatGPT / API (general-availability GPT-5.4)See chatgpt / chatgpt-pricing

Benchmark Head-to-Head

Grok 4.20 benchmarks — GPT-5.4-Cyber (OpenAI) has no published benchmarks

BenchmarkScore
MMLU88.5%
GPQA Diamond85%
HumanEval90%
Humanity's Last Exam50.7%

The decision

Which should you pick?

Use-case anchors and category strengths, side by side.

Our pick
Grok logo

Pick Grokif…

B
7.5/10
  • Easier to learn and use day-to-day -- friendlier onboarding curve
  • 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 Grok
GPT-5.4-Cyber (OpenAI) logo

Pick GPT-5.4-Cyber (OpenAI)if…

B
7.2/10
  • Higher output quality (8.5 vs 7.5) where polish matters more than speed
  • Enterprise SOC teams, established security research orgs, and vetted individual defenders who can qualify for Trusted Access for Cyber.
  • Strongest fit if your work involves binary analysis, vulnerability research, or defensive-security tooling where standard GPT-5.

Enterprise SOC teams, established security research orgs, and vetted individual defenders who can qualify for Trusted Access for Cyber. Strongest fit if your work involves binary analysis, vulnerability research, or defensive-security tooling where standard GPT-5.4 refusals actually block the work.

Visit GPT-5.4-Cyber (OpenAI)

Bottom line

The verdict

Grok (B-tier, 7.5/10) and GPT-5.4-Cyber (OpenAI) (B-tier, 7.2/10) 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 GPT-5.4-Cyber (OpenAI) requires a paid plan from day one (Not publicly disclosed+). If you're testing the waters or running an occasional workload, that gap matters more than the score differential. Grok starts at $0; GPT-5.4-Cyber (OpenAI) starts at Not publicly disclosed. 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 GPT-5.4-Cyber (OpenAI) when enterprise soc teams, established security research orgs, and vetted individual defenders who can qualify for trusted access for cyber. 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 GPT-5.4-Cyber (OpenAI)'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.

AIToolTier verdictLast reviewed May 14, 2026Tier rubric · ease of use, output, value, features

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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.