Claude 3.7 SonnetvsGrok 4.20 Multi-Agent Beta
Grok 4.20 Multi-Agent Beta is cheaper than Claude 3.7 Sonnet at $2/M vs $3/M input tokens.
| Spec | Claude 3.7 Sonnet | Grok 4.20 Multi-Agent Beta |
|---|---|---|
| Input price | $3/M tokens | $2/M tokens |
| Output price | $15/M tokens | $6/M tokens |
| Context window | 200K tokens | 2.0M tokens |
| Weights | — | Closed |
| Free API (OpenRouter) | No | No |
| Released | Feb 2025 | Mar 2026 |
Our Verdict
Grok 4.20 Multi-Agent Beta
Claude 3.7 SonnetRunner-up
Not enough votes to call it. On the specs, Grok 4.20 Multi-Agent Beta has the edge: bigger model tier, newer, bigger context window.
Slight edge
API pricing
Cost per 1M tokens
Claude 3.7 Sonnet
Input
$3.00
Output
$15.00
Grok 4.20 Multi-Agent Beta
Input
$2.00
1.5× cheaper
Output
$6.00
2.5× cheaper
Grok 4.20 Multi-Agent Beta is cheaper on both: 1.5× input, 2.5× output.
Where to run it
1 host
Claude 3.7 Sonnet
No hosts listed on OpenRouter.
Grok 4.20 Multi-Agent Beta1 host
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Writing DNA
Style Comparison
Similarity
42%
Claude 3.7 Sonnet uses 6.7x more headings
Claude 3.7 Sonnet
Grok 4.20 Multi-Agent Beta
61%Vocabulary59%
33wSentence Length16w
0.83Hedging0.41
2.2Bold2.7
4.9Lists2.4
0.00Emoji0.00
1.78Headings0.26
0.16Transitions0.02
Based on 26 + 23 text responses
Research
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