xAI, unknown

# Grok 4.20 Beta 1

> Grok 4.20 Beta 1 by xAI. Ranked #91 of 368 with a Noometry Index of 44.9. Scores, sources and comparisons.
- Canonical page: https://noometry.com/models/grok-4-20-beta-1
- Last updated: 2026-11-04
- Title: Grok 4.20 Beta 1 Benchmarks, Price & Rank (November 2026)

Grok 4.20 Beta 1 by xAI ranks 91st of 368 ranked models on the Noometry Index as of November 2026, with a score of 44.9. Its strongest category is multilingual, where it ranks 54th.

Last verified November 4, 2026

## Specifications

- **Noometry rank:** #91 of 368
- **Index score:** 44.9
- **Evidence:** Confirmed 17 results
- **Provider:** [xAI](https://noometry.com/providers/xai)
- **Released:** Unknown
- **Weights:** Unknown
- **Reasoning:** Unknown
- **Context window:** —
- **Max output:** —
- **Input price:** Not listed
- **Output price:** Not listed
- **Blended price:** Not listed
- **Output speed:** Not measured
- **Value:** Not ranked
- **Knowledge cutoff:** Unknown

## Category scores

Each category score combines every public result we have in that category.

Grok 4.20 Beta 1 category scores

1.  Coding 43.4
2.  Reasoning 32.4
3.  Math 41.4
4.  Knowledge 40.8
5.  Multilingual 52.6
6.  Instruction Following 74.4
7.  Long Context 43.5
8.  Writing & Preference 63.8
9.  020406080

Grok 4.20 Beta 1 category ranks
| Category | Score | Rank | Results |
| --- | --- | --- | --- |
| [Coding](https://noometry.com/best/coding) | 43.4 | #101 | 1 |
| [Reasoning](https://noometry.com/best/reasoning) | 32.4 | #92 | 1 |
| [Math](https://noometry.com/best/math) | 41.4 | #112 | 1 |
| [Knowledge](https://noometry.com/best/knowledge) | 40.8 | #137 | 1 |
| [Multilingual](https://noometry.com/best/multilingual) | 52.6 | #54 | 1 |
| [Instruction Following](https://noometry.com/best/instruction-following) | 74.4 | #92 | 1 |
| [Long Context](https://noometry.com/best/long-context) | 43.5 | #94 | 1 |
| [Writing & Preference](https://noometry.com/best/writing) | 63.8 | #65 | 3 |

## Strengths and weaknesses

Categories where Grok 4.20 Beta 1 places highest and lowest among the models ranked in each, with its score against that category's median.

### Strongest categories

Grok 4.20 Beta 1: strongest categories
| Category | Score | vs median | Rank |
| --- | --- | --- | --- |
| [Multilingual](https://noometry.com/best/multilingual) | 52.6 | +5.8 | #54 of 294, top 19% |
| [Writing & Preference](https://noometry.com/best/writing) | 63.8 | +10.2 | #65 of 317, top 21% |
| [Reasoning](https://noometry.com/best/reasoning) | 32.4 | +6.4 | #92 of 349, top 27% |

### Weakest categories

Grok 4.20 Beta 1: weakest categories
| Category | Score | vs median | Rank |
| --- | --- | --- | --- |
| [Knowledge](https://noometry.com/best/knowledge) | 40.8 | +2.6 | #137 of 326, top 43% |
| [Math](https://noometry.com/best/math) | 41.4 | +2.8 | #112 of 342, top 33% |
| [Long Context](https://noometry.com/best/long-context) | 43.5 | +2.4 | #94 of 292, top 33% |

## Closest competitors

The models ranked just above and below Grok 4.20 Beta 1. When scores are this close, price and speed are often the better way to choose.

Models ranked closest to Grok 4.20 Beta 1
| Model | Rank | Score | Blended $/M | Speed |  |
| --- | --- | --- | --- | --- | --- |
| [Nvidia Nemotron 3 Ultra 550b A55b (nvfp4)](https://noometry.com/models/nvidia-nemotron-3-ultra-550b-a55b) | #87 | 45.2 | — | — | [Compare](https://noometry.com/compare/grok-4-20-beta-1-vs-nvidia-nemotron-3-ultra-550b-a55b) |
| [GPT-5.4 mini](https://noometry.com/models/gpt-5-4-mini) | #88 | 45.1 | $1.69 | 10 | [Compare](https://noometry.com/compare/gpt-5-4-mini-vs-grok-4-20-beta-1) |
| [Gemini 2.5 Pro](https://noometry.com/models/gemini-2-5-pro) | #89 | 45.1 | $3.44 | 5 | [Compare](https://noometry.com/compare/gemini-2-5-pro-vs-grok-4-20-beta-1) |
| [Hy3](https://noometry.com/models/hy3) | #90 | 45.0 | $0.23 | — | [Compare](https://noometry.com/compare/grok-4-20-beta-1-vs-hy3) |
| [Chatgpt 4o Latest 20250326](https://noometry.com/models/chatgpt-4o) | #92 | 44.7 | — | 21 | [Compare](https://noometry.com/compare/chatgpt-4o-vs-grok-4-20-beta-1) |
| [GLM-5V-Turbo](https://noometry.com/models/glm-5v-turbo) | #93 | 44.7 | $1.90 | — | [Compare](https://noometry.com/compare/glm-5v-turbo-vs-grok-4-20-beta-1) |
| [Qwen3 Max](https://noometry.com/models/qwen3-max) | #94 | 44.7 | $2.40 | 48 | [Compare](https://noometry.com/compare/grok-4-20-beta-1-vs-qwen3-max) |
| [ERNIE 5.1](https://noometry.com/models/ernie-5-1) | #95 | 44.6 | — | — | [Compare](https://noometry.com/compare/ernie-5-1-vs-grok-4-20-beta-1) |

Sponsored placements are available on pages like this one. [Advertise on Noometry](https://noometry.com/advertise)

## Benchmark results

Every published result we track, with its source. Bold rows are the ones used for ranking; where several exist we prefer independent runs over self-reported numbers.

### Coding

Grok 4.20 Beta 1 Coding benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Coding](https://noometry.com/benchmarks/arena-coding) | 1447 | #92 of 291, top 32% | Grok 4.20 Beta 1 | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-28 |

### Reasoning

Grok 4.20 Beta 1 Reasoning benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Hard Prompts](https://noometry.com/benchmarks/arena-hard-prompts) | 1441 | #82 of 294, top 28% | Grok 4.20 Beta 1 | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-28 |

### Math

Grok 4.20 Beta 1 Math benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Math](https://noometry.com/benchmarks/arena-math) | 1432 | #82 of 283, top 29% | Grok 4.20 Beta 1 | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-28 |

### Knowledge

Grok 4.20 Beta 1 Knowledge benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Expert](https://noometry.com/benchmarks/arena-expert) | 1427 | #101 of 271, top 38% | Grok 4.20 Beta 1 | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-28 |

### Multilingual

Grok 4.20 Beta 1 Multilingual benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Non-English](https://noometry.com/benchmarks/arena-non-english) | 1433 | #54 of 294, top 19% | Grok 4.20 Beta 1 | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-28 |
| [LMArena Chinese](https://noometry.com/benchmarks/arena-chinese) | 1476 | #72 of 281, top 26% | Grok 4.20 Beta 1 | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-28 |
| [LMArena French](https://noometry.com/benchmarks/arena-french) | 1455 | #65 of 229, top 29% | Grok 4.20 Beta 1 | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-28 |
| [LMArena German](https://noometry.com/benchmarks/arena-german) | 1464 | #34 of 236, top 15% | Grok 4.20 Beta 1 | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-28 |
| [LMArena Japanese](https://noometry.com/benchmarks/arena-japanese) | 1449 | #29 of 218, top 14% | Grok 4.20 Beta 1 | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-28 |
| [LMArena Korean](https://noometry.com/benchmarks/arena-korean) | 1416 | #40 of 217, top 19% | Grok 4.20 Beta 1 | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-28 |
| [LMArena Russian](https://noometry.com/benchmarks/arena-russian) | 1449 | #47 of 280, top 17% | Grok 4.20 Beta 1 | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-28 |
| [LMArena Spanish](https://noometry.com/benchmarks/arena-spanish) | 1438 | #74 of 229, top 33% | Grok 4.20 Beta 1 | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-28 |

### Instruction Following

Grok 4.20 Beta 1 Instruction Following benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Instruction Following](https://noometry.com/benchmarks/arena-instruction-following) | 1415 | #81 of 294, top 28% | Grok 4.20 Beta 1 | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-28 |

### Long Context

Grok 4.20 Beta 1 Long Context benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Longer Query](https://noometry.com/benchmarks/arena-longer-query) | 1427 | #85 of 287, top 30% | Grok 4.20 Beta 1 | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-28 |

### Writing & Preference

Grok 4.20 Beta 1 Writing & Preference benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Text](https://noometry.com/benchmarks/arena-text) | 1445 | #57 of 294, top 20% | Grok 4.20 Beta 1 | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-28 |
| [LMArena Creative Writing](https://noometry.com/benchmarks/arena-creative-writing) | 1438 | #39 of 292, top 14% | Grok 4.20 Beta 1 | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-28 |
| [LMArena Multi-Turn](https://noometry.com/benchmarks/arena-multi-turn) | 1451 | #56 of 292, top 20% | Grok 4.20 Beta 1 | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-28 |

## Compare Grok 4.20 Beta 1

-   [Grok 4.20 Beta 1 vs Hy3](https://noometry.com/compare/grok-4-20-beta-1-vs-hy3)
-   [Grok 4.20 Beta 1 vs Chatgpt 4o Latest 20250326](https://noometry.com/compare/chatgpt-4o-vs-grok-4-20-beta-1)
-   [Grok 4.20 Beta 1 vs Gemini 2.5 Pro](https://noometry.com/compare/gemini-2-5-pro-vs-grok-4-20-beta-1)
-   [Grok 4.20 Beta 1 vs GLM-5V-Turbo](https://noometry.com/compare/glm-5v-turbo-vs-grok-4-20-beta-1)
-   [Grok 4.20 Beta 1 vs GPT-5.4 mini](https://noometry.com/compare/gpt-5-4-mini-vs-grok-4-20-beta-1)
-   [Grok 4.20 Beta 1 vs Qwen3 Max](https://noometry.com/compare/grok-4-20-beta-1-vs-qwen3-max)
-   [Grok 4.20 Beta 1 vs GPT-6 Astra](https://noometry.com/compare/gpt-6-astra-vs-grok-4-20-beta-1)
-   [Grok 4.20 Beta 1 vs Claude Opus 5.5](https://noometry.com/compare/claude-opus-5-5-vs-grok-4-20-beta-1)
-   [Grok 4.20 Beta 1 vs Gemini 4 Argon](https://noometry.com/compare/gemini-4-argon-vs-grok-4-20-beta-1)
-   [Grok 4.20 Beta 1 vs Kimi K3](https://noometry.com/compare/grok-4-20-beta-1-vs-kimi-k3)
-   [Grok 4.20 Beta 1 vs DeepSeek V4.1 Flash](https://noometry.com/compare/deepseek-v4-1-flash-vs-grok-4-20-beta-1)
-   [Grok 4.20 Beta 1 vs Muse Wonder](https://noometry.com/compare/grok-4-20-beta-1-vs-muse-wonder)
-   [Grok 4.20 Beta 1 vs Qwen3.8 Max](https://noometry.com/compare/grok-4-20-beta-1-vs-qwen3-8-max)
-   [Grok 4.20 Beta 1 vs Doubao Seed Evolving](https://noometry.com/compare/doubao-seed-evolving-vs-grok-4-20-beta-1)

## Other xAI models

-   [Grok 4.6](https://noometry.com/models/grok-4-6)56.8
-   [Grok 4.5](https://noometry.com/models/grok-4-5)55.1
-   [Grok 4.7](https://noometry.com/models/grok-4-7)54.0
-   [Grok 4.20 (Non-Reasoning)](https://noometry.com/models/grok-4-20)48.8
-   [Grok 4](https://noometry.com/models/grok-4)48.2
-   [Grok 4.20 Multi-Agent](https://noometry.com/models/grok-4-20-multi-agent)47.1
-   [Grok 4.3](https://noometry.com/models/grok-4-3)43.7
-   [Grok 4.1](https://noometry.com/models/grok-4-1)42.4

## Frequently asked questions

### How good is Grok 4.20 Beta 1?

Grok 4.20 Beta 1 by xAI ranks 91st of 368 ranked models on the Noometry Index as of November 2026, with a score of 44.9. Its strongest category is multilingual, where it ranks 54th.

### Is Grok 4.20 Beta 1 open source?

xAI has not published downloadable weights for Grok 4.20 Beta 1 that we can confirm.

### What are Grok 4.20 Beta 1's strengths and weaknesses?

Relative to other ranked models, Grok 4.20 Beta 1 places best in multilingual, writing & preference, reasoning and lowest in knowledge, math, long context.

### What is Grok 4.20 Beta 1 best at?

Its best category is multilingual, where it ranks 54th on Noometry.

### Cite this page

Noometry. (2026). Grok 4.20 Beta 1 benchmarks and pricing. Retrieved November 4, 2026, from https://noometry.com/models/grok-4-20-beta-1

Quote Noometry with a link back to this page. It is also available in [Markdown](https://noometry.com/md/models/grok-4-20-beta-1.md).