Grok 4.20 Beta 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.
Grok 4.20 Beta wins 16 of 22 task areas we tested; Mistral Medium 3.1 takes 6. Mistral Medium 3.1 costs 3.3× less per token ($2.4 vs $8 per 1M).
Mistral Medium 3.1 costs 3.3× less per token ($2.4 vs $8 per 1M).
Task by task
| Task area | Grok 4.20 Beta | Mistral Medium 3.1 | Winner |
|---|---|---|---|
| Chef / Home Cooking |
#38
/ 126
Usable
|
#116
/ 126
Needs editing
|
Grok 4.20 Beta |
| AI Strategy |
#49
/ 126
Strong
|
#120
/ 126
Usable
|
Grok 4.20 Beta |
| Summarization & Meeting Notes |
#95
/ 110
Excellent
|
#39
/ 110
Excellent
|
Mistral Medium 3.1 |
| Presentations & Decks |
#56
/ 110
Strong
|
#105
/ 110
Usable
|
Grok 4.20 Beta |
| Structured Output |
#43
/ 113
Excellent
|
#91
/ 113
Strong
|
Grok 4.20 Beta |
| Sales |
#46
/ 110
Usable
|
#92
/ 110
Usable
|
Grok 4.20 Beta |
| Customer Support |
#72
/ 113
Usable
|
#110
/ 113
Needs editing
|
Grok 4.20 Beta |
| Translation & Localization |
#90
/ 110
Strong
|
#53
/ 110
Excellent
|
Mistral Medium 3.1 |
| Legal & HR |
#106
/ 110
Strong
|
#70
/ 110
Strong
|
Mistral Medium 3.1 |
| Coding |
#77
/ 115
Strong
|
#108
/ 115
Needs editing
|
Grok 4.20 Beta |
| Training & Education |
#76
/ 110
Strong
|
#47
/ 110
Excellent
|
Mistral Medium 3.1 |
| Executive Assistant |
#69
/ 112
Strong
|
#94
/ 112
Usable
|
Grok 4.20 Beta |
| Investor & Pitch |
#43
/ 66
Usable
|
#65
/ 66
Needs editing
|
Grok 4.20 Beta |
| Product & Project Management |
#31
/ 110
Excellent
|
#50
/ 110
Strong
|
Grok 4.20 Beta |
| Research & Competitive Analysis |
#86
/ 110
Needs editing
|
#105
/ 110
Weak
|
Grok 4.20 Beta |
| RAG, Safety & Grounding |
#93
/ 113
Strong
|
#111
/ 113
Strong
|
Grok 4.20 Beta |
| Content & Brand |
#99
/ 124
Usable
|
#110
/ 124
Needs editing
|
Grok 4.20 Beta |
| Knowledge & Docs |
#86
/ 110
Usable
|
#77
/ 110
Usable
|
Mistral Medium 3.1 |
| Creative & Comedy | #92 / 110 | #100 / 110 | Grok 4.20 Beta |
| Data & Analytics |
#91
/ 110
Excellent
|
#87
/ 110
Excellent
|
Mistral Medium 3.1 |
| Frontend & Landing Pages |
#32
/ 109
Needs editing
|
#35
/ 109
Needs editing
|
Grok 4.20 Beta |
| Landing Pages |
#60
/ 72
Usable
|
#63
/ 72
Usable
|
Grok 4.20 Beta |
Rank = position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.
Frequently asked
Is Grok 4.20 Beta better than Mistral Medium 3.1?
Across 22 task areas we benchmarked, Grok 4.20 Beta ranks higher in 16 and Mistral Medium 3.1 in 6.
Which is cheaper, Grok 4.20 Beta or Mistral Medium 3.1?
Mistral Medium 3.1 costs 3.3× less per token ($2.4 vs $8 per 1M).
What is Grok 4.20 Beta better at?
Grok 4.20 Beta out-ranks Mistral Medium 3.1 at Chef / Home Cooking, AI Strategy, Presentations & Decks.
What is Mistral Medium 3.1 better at?
Mistral Medium 3.1 out-ranks Grok 4.20 Beta at Summarization & Meeting Notes, Translation & Localization, Legal & HR.
More comparisons
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Prompt × model results
12 test cases · 3 evals