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  1. Models
  2. Text
  3. xAI

Grok 4.20 Multi-Agent

Grok 4.20 Multi-Agent is tuned for collaborative agentic workflows while keeping the same 2M-token context window and multimodal support. Content policy rejections can still be charged: SpaceXAI may pass through a $0.05 moderation-failure fee, or a $0.055 usage-guidelines violation fee, depending on which rejection upstream returns.

  • Reasoning
  • Vision
  • Structured Output

Added Mar 31, 2026

Pricing

Auto routing · per 1M tokens
Input
$1.25
Output
$2.50
Cache read
$0.20
Compare provider prices

Specifications

Context window
2M
Max output
131.1K

Benchmarks

Sourced from LMArena.

Arena Score

1471.1

Overall Rank

#49 / 421

Votes

64,252

Confidence Interval

1467.3 - 1474.8

Category Scores

Coding

#62 / 416

17,840 votes

1508.5

Math

#70 / 404

3,348 votes

1455.0

Longer Query

#79 / 399

27,604 votes

1458.3

Creative Writing

#45 / 419

11,140 votes

1447.2

Instruction Following

#77 / 421

21,725 votes

1444.2

Hard Prompts

#60 / 421

41,707 votes

1484.0

Additional Categories
22

Polish

#36 / 244

1,314 votes

1479.4

French

#37 / 301

2,234 votes

1491.9

Korean

#38 / 289

998 votes

1435.7

Russian

#40 / 385

7,076 votes

1478.5

German

#41 / 320

1,056 votes

1474.8

Non English

#45 / 421

34,959 votes

1460.6

Spanish

#48 / 303

1,981 votes

1465.3

Exclude Ties

#50 / 421

48,621 votes

1478.1

English

#54 / 421

29,292 votes

1473.3

Industry Entertainment And Sports And Media

#54 / 419

14,007 votes

1439.6

Multi Turn

#54 / 419

10,550 votes

1474.3

Industry Medicine And Healthcare

#55 / 390

4,776 votes

1481.9

Industry Software And It Services

#55 / 421

25,324 votes

1502.4

Industry Legal And Government

#61 / 393

5,136 votes

1470.4

Industry Life And Physical And Social Science

#62 / 419

10,555 votes

1479.9

Industry Business And Management And Financial Operations

#69 / 414

12,771 votes

1454.9

Industry Writing And Literature And Language

#69 / 420

15,976 votes

1443.8

Expert

#71 / 371

6,419 votes

1482.6

Industry Mathematical

#75 / 401

3,487 votes

1458.1

Chinese

#76 / 395

3,969 votes

1493.4

Hard Prompts English

#76 / 419

19,769 votes

1480.7

Japanese

#77 / 288

618 votes

1417.4

Published 2026-11-09 · Matched as Grok 4.20 Multi-Agent Beta (0309) · CC BY 4.0

LMArena Dataset

Leaderboard results

BenchmarkScoreRank on NanoGPT
UGI Leaderboard

UGI Leaderboard data, Apache-2.0 · Updated Oct 16, 2026

UGI Score

70.0

#1 of 149

UGI Willingness

6.5

#18 of 149

UGI Writing

63.1

#29 of 149

Filtered and ranked to models on NanoGPT.

Providers

Auto
Auto (ZDR)
$1.25$2.50$0.20N/AN/A
Auto
Auto (Anonymized)
$1.25$2.50$0.20N/AN/A

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Grok 4.6

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Grok 4.5

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Grok Build 0.1

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Grok Latest

x-ai/grok-latest

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Grok 4.3

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Grok 4.3 is SpaceXAI's reasoning model for text and image inputs, built for agentic workflows, instruction following, factual accuracy, long-document analysis, and deep research. Reasoning is always active and requests above 200k total tokens are charged at the higher long-context rate. Content policy rejections can still be charged: SpaceXAI may pass through a $0.05 moderation-failure fee, or a $0.055 usage-guidelines violation fee, depending on which rejection upstream returns.