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Grok 4.20

● live

xAI

Live since March — multi-agent, reasoning and non-reasoning SKUs; 4.20-beta variants are still under test on the arena board. On the board as live since 2026-03-10 — the watchers keep tracking it: lineup changes, pricing moves and deprecations all alert.

Answering in 0.2s· answered 3h agoIs Grok down? →

Watch for xAI’s next model, free →Launch report (PDF)

Timeline

2026-03-10

Grok 4.20 verified live — from the vendor's own announcement and catalog listingverified

The official word

We alert on verified API behavior, never on announcements alone — but when xAI speaks, it's here: x.ai/news ↗

Where to use Grok 4.20

20 providers list Grok 4.20 in the models.dev catalog (as of 2026-11-01), under the model ids shown below.

xAIgrok-4.20-0309-non-reasoning · grok-4.20-0309-reasoning · grok-4.20-multi-agent-0309

Vertexxai/grok-4.20-non-reasoning · xai/grok-4.20-reasoning

Azuregrok-4-20-non-reasoning · grok-4-20-reasoning

Azure Cognitive Servicesgrok-4-20-non-reasoning · grok-4-20-reasoning

OpenRouterx-ai/grok-4.20 · x-ai/grok-4.20-multi-agent

Vercel AI Gatewayspacexai/grok-4.20-multi-agent · spacexai/grok-4.20-non-reasoning · spacexai/grok-4.20-reasoning

AI/ML APIx-ai/grok-4-20-0309-non-reasoning

Cloudflare AI Gatewayxai/grok-4.20-0309-non-reasoning · xai/grok-4.20-0309-reasoning

DevPass (LLM Gateway)grok-4-20-non-reasoning · grok-4-20-reasoning

Eden AIxai/grok-4.20-0309-non-reasoning · xai/grok-4.20-0309-reasoning

Impossiblxai/grok-4.20-0309-non-reasoning · xai/grok-4.20-0309-reasoning

Kilo Gatewayx-ai/grok-4.20 · x-ai/grok-4.20-multi-agent

Also listed by LLM Gateway, Merge Gateway, NanoGPT, OCI Generative AI, Ofox, Poe, Tempr Gateway, Venice AI.

Listings cover the model family, so a provider may list a sibling tier under the same name. Check the id before you build on it.

Try it first-hand on xAI's own xAI Console ↗

Grok 4.20: quick answers

Is Grok 4.20 out?

Yes. Grok 4.20 is live and has been since March 10, 2026.

When was Grok 4.20 released?

March 10, 2026.

Who makes Grok 4.20?

xAI. ArtificialWatch also tracks Grok Voice 3.0, Grok 4.7, Grok 4.6, Grok Voice Think Fast 2.0, Grok 4.5, Grok 4, Grok 4.4 and Grok 4.8 from xAI.

Where can I use Grok 4.20?

20 providers list it in the models.dev catalog, including xAI, Vertex, Azure, Azure Cognitive Services and OpenRouter. The exact model ids each one lists are on this page.