Try Grok 4.20 on AI Gateway (opens in new tab)

# Try Grok 4\.20 on AI Gateway **Published:** March 11, 2026 | **Authors:** Walter Korman, Jerilyn Zheng --- Grok 4.20 is now available on Vercel AI Gateway in three variants: Reasoning, Non-Reasoning, and Multi-Agent. As xAI's newest flagship model, Grok 4.20 delivers industry-leading speed and agentic tool calling capabilities. It offers a low hallucination rate and strict prompt adherence, producing precise responses. - **Grok 4.20 Non-Reasoning**: Non-reasoning variant optimized for s...