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Grok 4.20

xAI

Grok 4.20 is a reasoning model from xAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...

openrouter.ai ↗
📖Context2M tokens
🚀Speed-
💵Input price$1.25/1M
💸Output price$2.50/1M

Made by

🏢
xAI
Understanding the universe
lab
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API Providers

OpenRouter
Input
$1.25/1M
Output
$2.50/1M
→

Details

Provider
xAI
Parameters
-
Context
2M tokens
Speed
-
Open Source
No
License
Proprietary
Released
Mar 2026

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