GPT-5.4 Mini
VS
Grok 4.20 Beta
GPT-5.4 Mini vs Grok 4.20 Beta: which wins at real work?
22 task areas · same graded test runs · rank comparison only, so 0–100 and Elo collections never mix raw scores.
GPT-5.4 Mini wins 17 of 22 task areas we tested; Grok 4.20 Beta takes 5. GPT-5.4 Mini costs 1.5× less per token ($5.25 vs $8 per 1M).
GPT-5.4 Mini costs 1.5× less per token ($5.25 vs $8 per 1M).
Task by task
| Task area | GPT-5.4 Mini | Grok 4.20 Beta | Winner |
|---|---|---|---|
| Knowledge & Docs |
#3
/ 110
Excellent
|
#86
/ 110
Usable
|
GPT-5.4 Mini |
| Legal & HR |
#26
/ 110
Excellent
|
#106
/ 110
Strong
|
GPT-5.4 Mini |
| Summarization & Meeting Notes |
#19
/ 110
Excellent
|
#95
/ 110
Excellent
|
GPT-5.4 Mini |
| Research & Competitive Analysis |
#11
/ 110
Excellent
|
#86
/ 110
Needs editing
|
GPT-5.4 Mini |
| Translation & Localization |
#21
/ 110
Excellent
|
#90
/ 110
Strong
|
GPT-5.4 Mini |
| Coding |
#24
/ 115
Strong
|
#77
/ 115
Strong
|
GPT-5.4 Mini |
| Customer Support |
#21
/ 113
Strong
|
#72
/ 113
Usable
|
GPT-5.4 Mini |
| RAG, Safety & Grounding |
#42
/ 113
Excellent
|
#93
/ 113
Strong
|
GPT-5.4 Mini |
| Chef / Home Cooking |
#83
/ 126
Usable
|
#38
/ 126
Usable
|
Grok 4.20 Beta |
| Structured Output |
#1
/ 113
Excellent
|
#43
/ 113
Excellent
|
GPT-5.4 Mini |
| Presentations & Decks |
#16
/ 110
Excellent
|
#56
/ 110
Strong
|
GPT-5.4 Mini |
| Creative & Comedy | #56 / 110 | #92 / 110 | GPT-5.4 Mini |
| Data & Analytics |
#65
/ 110
Excellent
|
#91
/ 110
Excellent
|
GPT-5.4 Mini |
| Executive Assistant |
#87
/ 112
Usable
|
#69
/ 112
Strong
|
Grok 4.20 Beta |
| Content & Brand |
#84
/ 124
Usable
|
#99
/ 124
Usable
|
GPT-5.4 Mini |
| Landing Pages |
#45
/ 72
Usable
|
#60
/ 72
Usable
|
GPT-5.4 Mini |
| Product & Project Management |
#19
/ 110
Excellent
|
#31
/ 110
Excellent
|
GPT-5.4 Mini |
| Investor & Pitch |
#52
/ 66
Usable
|
#43
/ 66
Usable
|
Grok 4.20 Beta |
| Frontend & Landing Pages |
#38
/ 109
Needs editing
|
#32
/ 109
Needs editing
|
Grok 4.20 Beta |
| Sales |
#40
/ 110
Usable
|
#46
/ 110
Usable
|
GPT-5.4 Mini |
| Training & Education |
#79
/ 110
Strong
|
#76
/ 110
Strong
|
Grok 4.20 Beta |
| AI Strategy |
#48
/ 126
Strong
|
#49
/ 126
Strong
|
GPT-5.4 Mini |
Rank = position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.
Frequently asked
Is GPT-5.4 Mini better than Grok 4.20 Beta?
Across 22 task areas we benchmarked, GPT-5.4 Mini ranks higher in 17 and Grok 4.20 Beta in 5.
Which is cheaper, GPT-5.4 Mini or Grok 4.20 Beta?
GPT-5.4 Mini costs 1.5× less per token ($5.25 vs $8 per 1M).
What is GPT-5.4 Mini better at?
GPT-5.4 Mini out-ranks Grok 4.20 Beta at Knowledge & Docs, Legal & HR, Summarization & Meeting Notes.
What is Grok 4.20 Beta better at?
Grok 4.20 Beta out-ranks GPT-5.4 Mini at Chef / Home Cooking, Executive Assistant, Investor & Pitch.
More comparisons
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Prompt × model results
12 test cases · 3 evals