xAI · mid
Is Grok 4.20 Beta good?
Grok 4.20 Beta has been tested across 22 task areas. It's strongest at frontend & landing pages and weakest at creative & comedy. It's a mid-priced option ($8/1M tokens).
Our take
Strengths
Weak spots
How Grok 4.20 Beta ranks, task by task
Rank is the position in each field; Rating is the absolute quality bar. A model can be rated "Excellent" yet sit mid-table when the whole field is strong — and vice-versa.
| Task area | Rank | Percentile | Rating |
|---|---|---|---|
| Frontend & Landing Pages | #21 of 93 |
|
Needs editing |
| Chef / Home Cooking | #17 of 50 |
|
Usable |
| Product & Project Management | #18 of 44 |
|
Strong |
| Structured Output | #18 of 43 |
|
Strong |
| AI Strategy | #25 of 50 |
|
Strong |
| Investor & Pitch | #25 of 50 |
|
Usable |
| Customer Support | #23 of 43 |
|
Usable |
| Data & Analytics | #42 of 69 |
|
Excellent |
| Presentations & Decks | #29 of 44 |
|
Strong |
| Sales | #29 of 44 |
|
Usable |
| Knowledge & Docs | #71 of 94 |
|
Usable |
| Content & Brand | #41 of 50 |
|
Usable |
| Coding | #43 of 52 |
|
Usable |
| Landing Pages | #47 of 56 |
|
Usable |
| Summarization & Meeting Notes | #37 of 44 |
|
Excellent |
| Executive Assistant | #43 of 50 |
|
Usable |
| Research & Competitive Analysis | #38 of 44 |
|
Needs editing |
| Translation & Localization | #38 of 44 |
|
Strong |
| Training & Education | #41 of 44 |
|
Strong |
| RAG, Safety & Grounding | #33 of 35 |
|
Strong |
| Creative & Comedy | #44 of 44 |
|
Elo |
| Legal & HR | #44 of 44 |
|
Usable |
Industry benchmarks
Standardized third-party scores, shown for context — these are independent of our real-task tests.
Design Arena — human preference (avg Elo 1217)
Headline vs. real-world
Source: Artificial Analysis (artificialanalysis.ai) via OpenRouter (openrouter.ai/rankings). (2026-06-29) · Source: Design Arena (www.designarena.ai) via OpenRouter (openrouter.ai/rankings). (2026-06-29)
Like Grok 4.20 Beta, but…
Similar
- Grok 4.20 Mid
- Claude Haiku 4.5 Mid
- DeepSeek V3.1 Terminus Budget
Cheaper
- DeepSeek V3.2 93% cheaper
- DeepSeek V3.1 Terminus 85% cheaper
- GPT-5.4 Nano 82% cheaper
Smarter
- GPT-5.5 +53 pts
- Gemini 3.1 Pro Preview +53 pts
- Claude Opus 4.8 +49 pts
Frequently asked
Is Grok 4.20 Beta any good?
Grok 4.20 Beta places top-3 in 0 of 22 task areas we benchmarked. It performs best at Frontend & Landing Pages.
What is Grok 4.20 Beta best at?
Its strongest task areas are Frontend & Landing Pages, Chef / Home Cooking, Product & Project Management.
Is there a cheaper alternative to Grok 4.20 Beta?
DeepSeek V3.2 is 93% cheaper and stays competitive on quality across our benchmarks.
How we test & rank
Each model is scored on real tasks across 22 task areas by an LLM judge with deterministic checks. "Percentile" is this model's standing within each area's field; the cross-area figures are rank-based so quality and Elo scores are never mixed.
This page is Spring Prompt, running
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.
Prompt × model results
12 test cases · 3 evals