Grok 4.20

AI models review

High confidence Updated Jul 30, 2026

As of Jul 30, 2026, Grok 4.20 is rated 1472 Elo on LM Arena (61,762 Arena votes).

1472 Elo
LM Arena
61.8K Arena votes

Benchmark and price facts

Vendor
SpaceXAI
License
proprietary
LM Arena text
1472 Elo (#27 of 40)
LM Arena coding
1374 Elo (#65)
Price (input)
$1.25 / 1M tokens
Price (output)
$2.5 / 1M tokens
Context window
2,000,000 tokens
Human votes
61,762

Elo and votes from LM Arena; price and context from OpenRouter. Real fetched values, attributed, never blended.

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