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xAI Grok 4.20 VS xAI Grok 4.20 Beta

Grok 4.20 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.

Grok 4.20 Beta wins 15 of 22 task areas we tested; Grok 4.20 takes 7. Grok 4.20 costs 2.1× less per token ($3.75 vs $8 per 1M).

7
Task areas won
15
30
Avg percentile
36
0
Top-3 finishes
0
$3.75
Price / 1M tokens
$8.0
xAI
Provider
xAI

Grok 4.20 costs 2.1× less per token ($3.75 vs $8 per 1M).

Task by task

Task area Grok 4.20 Grok 4.20 Beta Winner
Chef / Home Cooking #100 / 126
Needs editing
#38 / 126
Usable
Grok 4.20 Beta
Sales #85 / 110
Usable
#46 / 110
Usable
Grok 4.20 Beta
Research & Competitive Analysis #52 / 110
Usable
#86 / 110
Needs editing
Grok 4.20
Product & Project Management #56 / 110
Strong
#31 / 110
Excellent
Grok 4.20 Beta
Content & Brand #118 / 124
Needs editing
#99 / 124
Usable
Grok 4.20 Beta
Legal & HR #87 / 110
Strong
#106 / 110
Strong
Grok 4.20
Frontend & Landing Pages #15 / 109
Needs editing
#32 / 109
Needs editing
Grok 4.20
Investor & Pitch #59 / 66
Usable
#43 / 66
Usable
Grok 4.20 Beta
Knowledge & Docs #70 / 110
Usable
#86 / 110
Usable
Grok 4.20
Executive Assistant #83 / 112
Usable
#69 / 112
Strong
Grok 4.20 Beta
Training & Education #88 / 110
Strong
#76 / 110
Strong
Grok 4.20 Beta
Data & Analytics #102 / 110
Excellent
#91 / 110
Excellent
Grok 4.20 Beta
AI Strategy #59 / 126
Strong
#49 / 126
Strong
Grok 4.20 Beta
Presentations & Decks #46 / 110
Excellent
#56 / 110
Strong
Grok 4.20
Summarization & Meeting Notes #85 / 110
Excellent
#95 / 110
Excellent
Grok 4.20
Coding #86 / 115
Usable
#77 / 115
Strong
Grok 4.20 Beta
Translation & Localization #98 / 110
Strong
#90 / 110
Strong
Grok 4.20 Beta
Landing Pages #66 / 72
Usable
#60 / 72
Usable
Grok 4.20 Beta
Structured Output #48 / 113
Excellent
#43 / 113
Excellent
Grok 4.20 Beta
Creative & Comedy #96 / 110 #92 / 110 Grok 4.20 Beta
Customer Support #68 / 113
Usable
#72 / 113
Usable
Grok 4.20
RAG, Safety & Grounding #96 / 113
Strong
#93 / 113
Strong
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 better than Grok 4.20 Beta?

Across 22 task areas we benchmarked, Grok 4.20 Beta ranks higher in 15 and Grok 4.20 in 7.

Which is cheaper, Grok 4.20 or Grok 4.20 Beta?

Grok 4.20 costs 2.1× less per token ($3.75 vs $8 per 1M).

What is Grok 4.20 better at?

Grok 4.20 out-ranks Grok 4.20 Beta at Research & Competitive Analysis, Legal & HR, Frontend & Landing Pages.

What is Grok 4.20 Beta better at?

Grok 4.20 Beta out-ranks Grok 4.20 at Chef / Home Cooking, Sales, Product & Project Management.

Full Grok 4.20 review → Full Grok 4.20 Beta review → Full model leaderboard →

More comparisons

This page is Spring Prompt, running in public

We just did this for every model. Do it for your prompt.

The rankings above come from running real tasks through real models and scoring every output. Spring Prompt is that same engine — pointed at your prompt, your test cases, and your definition of good.

  • Generate test cases from your prompt — no eval set required to start.
  • Compare models side by side with quality, cost and latency in one matrix.
  • Optimise the winner until the scores say it's ready to ship.
Experiment · Cold outreach email

Prompt × model results

12 test cases · 3 evals
Claude Opus
GPT-5
Gemini
v1
7.1
6.8
7.4
v2
8.3
7.9
8.0
v3
9.2
8.6
8.4
Best combo: v3 × Claude Opus
9.2 quality · $0.004/run · 1.8s