GPT-5.4
VS
Mistral Medium 3.1
GPT-5.4 vs Mistral Medium 3.1: 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 wins 21 of 22 task areas we tested; Mistral Medium 3.1 takes 1. Mistral Medium 3.1 costs 7.3× less per token ($2.4 vs $17.5 per 1M).
Mistral Medium 3.1 costs 7.3× less per token ($2.4 vs $17.5 per 1M).
Task by task
| Task area | GPT-5.4 | Mistral Medium 3.1 | Winner |
|---|---|---|---|
| Presentations & Decks |
#1
/ 110
Excellent
|
#105
/ 110
Usable
|
GPT-5.4 |
| Research & Competitive Analysis |
#1
/ 110
Excellent
|
#105
/ 110
Weak
|
GPT-5.4 |
| Content & Brand |
#7
/ 124
Strong
|
#110
/ 124
Needs editing
|
GPT-5.4 |
| Coding |
#9
/ 115
Excellent
|
#108
/ 115
Needs editing
|
GPT-5.4 |
| Chef / Home Cooking |
#19
/ 126
Strong
|
#116
/ 126
Needs editing
|
GPT-5.4 |
| Customer Support |
#13
/ 113
Strong
|
#110
/ 113
Needs editing
|
GPT-5.4 |
| Creative & Comedy | #6 / 110 | #100 / 110 | GPT-5.4 |
| AI Strategy |
#37
/ 126
Strong
|
#120
/ 126
Usable
|
GPT-5.4 |
| RAG, Safety & Grounding |
#29
/ 113
Excellent
|
#111
/ 113
Strong
|
GPT-5.4 |
| Structured Output |
#9
/ 113
Excellent
|
#91
/ 113
Strong
|
GPT-5.4 |
| Knowledge & Docs |
#1
/ 110
Excellent
|
#77
/ 110
Usable
|
GPT-5.4 |
| Executive Assistant |
#25
/ 112
Strong
|
#94
/ 112
Usable
|
GPT-5.4 |
| Investor & Pitch |
#7
/ 66
Strong
|
#65
/ 66
Needs editing
|
GPT-5.4 |
| Sales |
#41
/ 110
Usable
|
#92
/ 110
Usable
|
GPT-5.4 |
| Legal & HR |
#20
/ 110
Excellent
|
#70
/ 110
Strong
|
GPT-5.4 |
| Data & Analytics |
#42
/ 110
Excellent
|
#87
/ 110
Excellent
|
GPT-5.4 |
| Landing Pages |
#22
/ 72
Strong
|
#63
/ 72
Usable
|
GPT-5.4 |
| Product & Project Management |
#13
/ 110
Excellent
|
#50
/ 110
Strong
|
GPT-5.4 |
| Translation & Localization |
#17
/ 110
Excellent
|
#53
/ 110
Excellent
|
GPT-5.4 |
| Frontend & Landing Pages |
#5
/ 109
Usable
|
#35
/ 109
Needs editing
|
GPT-5.4 |
| Summarization & Meeting Notes |
#11
/ 110
Excellent
|
#39
/ 110
Excellent
|
GPT-5.4 |
| Training & Education |
#69
/ 110
Strong
|
#47
/ 110
Excellent
|
Mistral Medium 3.1 |
Rank = position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.
Same task, both models — judged
Both models answered the same test case; an independent judge graded each. Quotes are the judge's actual rationale.
Chef / Home Cooking
Quick chicken thighs with limited ingredients (Practical Recipe Test)
“The candidate perfectly follows all constraints, providing a highly practical, well-timed, and clear recipe that fits the 30-minute limit.”
“The model chose bone-in chicken thighs which cannot safely cook in the 17 minutes of heat time provided. Furthermore, the running clock timings completely contradict the written step durations, and the model failed to use the required pot.”
Frequently asked
Is GPT-5.4 better than Mistral Medium 3.1?
Across 22 task areas we benchmarked, GPT-5.4 ranks higher in 21 and Mistral Medium 3.1 in 1.
Which is cheaper, GPT-5.4 or Mistral Medium 3.1?
Mistral Medium 3.1 costs 7.3× less per token ($2.4 vs $17.5 per 1M).
What is GPT-5.4 better at?
GPT-5.4 out-ranks Mistral Medium 3.1 at Presentations & Decks, Research & Competitive Analysis, Content & Brand.
What is Mistral Medium 3.1 better at?
Mistral Medium 3.1 out-ranks GPT-5.4 at Training & Education.
More comparisons
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Prompt × model results
12 test cases · 3 evals