Private AI
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: xAI may pass through a $0.05 moderation-failure fee, or a $0.055 usage-guidelines violation fee, depending on which rejection upstream returns.
Added Mar 31, 2026
Context Window
2.0M
Max Output
131.1K
Avg output tokens (7d)
8.1K tokens
Input Price (Auto)
$1.31/1M
Output Price (Auto)
$2.63/1M
Cache Read (Auto)
$0.21/1M
Capabilities
Performance metrics and benchmarks
Sourced from LMArena.
Arena Score
1470.9
Overall Rank
#30 / 383
Votes
60,405
Confidence Interval
1467.1 - 1474.7
Coding
#41 / 378
16,784 votes
1509.0
Math
#52 / 370
3,204 votes
1453.0
Longer Query
#58 / 361
25,087 votes
1458.0
Creative Writing
#26 / 381
10,139 votes
1448.4
Instruction Following
#55 / 383
19,985 votes
1444.5
Hard Prompts
#42 / 383
39,035 votes
1484.1
Choose explicit providers for this model. Auto routing remains available as the default option.
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German
#20 / 287
999 votes
1474.4
Polish
#20 / 211
1,268 votes
1481.8
French
#21 / 267
2,145 votes
1493.2
Korean
#22 / 259
988 votes
1435.3
Russian
#25 / 346
6,283 votes
1479.5
Non English
#29 / 383
32,257 votes
1460.9
Spanish
#29 / 269
1,878 votes
1464.8
Exclude Ties
#30 / 383
45,661 votes
1477.6
Industry Entertainment And Sports And Media
#34 / 381
12,834 votes
1441.7
English
#36 / 383
28,147 votes
1473.4
Industry Software And It Services
#36 / 383
23,824 votes
1502.6
Industry Legal And Government
#37 / 356
4,796 votes
1472.9
Industry Medicine And Healthcare
#38 / 353
4,424 votes
1481.8
Industry Life And Physical And Social Science
#39 / 381
9,783 votes
1481.2
Multi Turn
#39 / 381
9,892 votes
1474.1
Chinese
#45 / 355
3,197 votes
1499.1
Industry Writing And Literature And Language
#46 / 382
14,576 votes
1445.7
Japanese
#48 / 245
532 votes
1415.7
Industry Business And Management And Financial Operations
#49 / 376
12,031 votes
1456.9
Expert
#51 / 332
5,774 votes
1481.2
Hard Prompts English
#51 / 382
19,043 votes
1481.3
Industry Mathematical
#52 / 365
3,194 votes
1457.1
Published 2026-08-03 · Matched as grok-4.20-multi-agent-beta-0309
LMArena Dataset