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Grok 4.20 Multi-Agent

API ID grok-4.20-multi-agent-0309

grok-4.20-multi-agent-0309 is an xAI model. Standard price: from $1.25 input and from $2.50 output per 1M tokens.

Status
Active
Released
—
Shutdown
none announced
Replacement
—

No deprecation or shutdown date has been announced as of October 15, 2026.

Benchmarks

Scores as each source published them
or

No comparison. Pick a model to see the difference on each benchmark.

Arena

ArenaGrok 4.20 Multi-AgentRankDateSource
Text
By category
  • Math 1455 rank 69
  • Creative writing 1447 rank 44
  • Instruction following 1444 rank 75
  • Hard prompts 1484 rank 59
  • Long prompts 1458 rank 79
  • Multi-turn 1474 rank 51
  • Expert 1480 rank 74
1470 ±447 of 415
64,959 votes		Oct 13, 2026source
Text: Coding1508 ±661 of 410
18,025 votes		Oct 13, 2026source
Vision1250 ±654 of 165
24,543 votes		Oct 9, 2026source
Search1206 ±615 of 42
126,238 votes		Oct 13, 2026source

Rated as grok-4.20-multi-agent-beta-0309. Ratings come from people voting between two anonymous answers; Text, Vision and Search are style-controlled, as on arena.ai. Data: Arena (arena.ai), CC BY 4.0.

Price history

USD per 1M tokens, standard tier
$0.00$1.00$2.00$3.00Oct 2026In $1.25Out $2.50Oct 5, 2026 to Oct 15, 2026: Input $1.25, Output $2.50
$0.00$1.00$2.00$3.00Oct 2026In $1.25Out $2.50Oct 5, 2026 to Oct 15, 2026: Input $1.25, Output $2.50

We started recording this model's prices on Oct 5, 2026. The history grows with each daily check.

Show as a table
FromTypePrice
Oct 5, 2026Input$1.25
Oct 5, 2026Output$2.50

Prices

USD per 1M tokens, every type and band, by tier
TypeBandPrice $/1MIn effect
Standard
inputup to 200k prompt$1.25
inputover 200k prompt$2.50
cached inputup to 200k prompt$0.20
cached inputover 200k prompt$0.40
outputup to 200k prompt$2.50
outputover 200k prompt$5.00

Changelog

Changes we detected on xAI's pages

No changes recorded yet.

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Last checked · Sources: xAI pricing, xAI notices, xAI release notes