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Microsoft Foundry

Models

Frontier, open-source, and partner models in one place.

7 models

Publisher:xAI

grok-4.3chat-completion

Input typetext, image

Output typetext

Context window200k

Token limits8.192k output

grok-4-20-reasoningchat-completion

Input typetext, image

Output typetext

Context window262k

Token limits8.192k output

grok-4-20-non-reasoningchat-completion

Input typetext, image

Output typetext

Context window262k

Token limits8.192k output

grok-4-1-fast-non-reasoningchat-completion

Input typetext, image

Output typetext

Context window128k

Token limits128k output

Generally available (GA)

grok-4-1-fast-reasoningchat-completion

Input typetext, image

Output typetext

Context window128k

Token limits128k output

Generally available (GA)

grok-4chat-completion

Output typetext

Context window128k

Token limits8.192k output

Generally available (GA)

grok-code-fast-1chat-completion

Output typetext

Context window256k

Token limits8.192k output

Generally available (GA)

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