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
#31 / 384
Votes
60,405
Confidence Interval
1467.1 - 1474.7
Coding
#41 / 379
16,784 votes
1509.0
Math
#52 / 370
3,204 votes
1453.0
Longer Query
#59 / 362
25,087 votes
1458.0
Creative Writing
#27 / 382
10,139 votes
1448.4
Instruction Following
#56 / 384
19,985 votes
1444.5
Hard Prompts
#43 / 384
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 / 286
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
#26 / 347
6,283 votes
1479.5
Spanish
#28 / 269
1,878 votes
1464.8
Non English
#30 / 384
32,257 votes
1460.9
Exclude Ties
#31 / 384
45,661 votes
1477.6
Industry Entertainment And Sports And Media
#35 / 382
12,834 votes
1441.7
Industry Software And It Services
#36 / 384
23,824 votes
1502.6
English
#37 / 384
28,147 votes
1473.4
Industry Legal And Government
#39 / 357
4,796 votes
1472.9
Industry Medicine And Healthcare
#39 / 354
4,424 votes
1481.8
Multi Turn
#40 / 382
9,892 votes
1474.1
Industry Life And Physical And Social Science
#41 / 382
9,783 votes
1481.2
Chinese
#46 / 356
3,197 votes
1499.1
Industry Writing And Literature And Language
#47 / 383
14,576 votes
1445.7
Japanese
#48 / 245
532 votes
1415.7
Industry Business And Management And Financial Operations
#50 / 377
12,031 votes
1456.9
Hard Prompts English
#52 / 383
19,043 votes
1481.3
Industry Mathematical
#52 / 365
3,194 votes
1457.1
Expert
#53 / 333
5,774 votes
1481.2
Published 2026-08-02 · Matched as grok-4.20-multi-agent-beta-0309
LMArena Dataset