Grok 4.20
Rank #94
x-ai
x-ai/grok-4.20-20260309
Usage data date 2026-07-26 · updated daily
Usage and specs
Daily rank#94
Daily tokens31.8B
Daily requests3.8M
Daily change
−0.4%
Context window2M
Released
What is Grok 4.20
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 consistently precise and truthful responses. Reasoning can be enabled/disabled using the `reasoning` `enabled` parameter in the API. [Learn more in our docs](https://openrouter.ai/docs/use-cases/reasoning-tokens#controlling-reasoning-tokens)
Grok 4.20 capabilities
Input: Text、Image、File Output: Text
Grok 4.20 API pricing
Input · per 1M tokens$1.25
Output · per 1M tokens$2.50
List prices in USD; see each provider’s site for current terms.