xAI

Connection

Field	Value
Anvia SDK	@anvia/grok
Compatibility	First-party xAI REST endpoint
API URL	https://api.x.ai/v1
Environment	XAI_API_KEY
Provider docs	https://docs.x.ai/docs/models
Models	8

Anvia Usage

Use GrokClient from @anvia/grok for xAI completions, image generation, and model listing.

import { AgentBuilder } from "@anvia/core/agent";
import { GrokClient } from "@anvia/grok";

const grok = new GrokClient({
  apiKey: process.env.XAI_API_KEY,
});

const model = grok.completionModel("grok-4.3");

export const agent = new AgentBuilder("grok-agent", model)
  .instructions("Answer clearly and concisely.")
  .build();

Read the Grok provider guide for package setup and supported surfaces.

Capabilities

Capability	Value
Input modalities	image, pdf, text, video
Output modalities	image, pdf, text, video
Attachments	8 / 8 models
Tools	4 / 8 models
Structured output	5 / 8 models
Reasoning	4 / 8 models
Temperature	5 / 8 models
Open weights	0 / 8 models

Models

Model	Family	Input	Output	Capabilities	Limits	Cost	Updated
grok-4.20-0309-non-reasoning Grok 4.20 (Non-Reasoning)	grok	image, pdf, text	text	tools, schema, temperature	context: 1000000 / output: 30000	input: 1.25 / output: 2.5 / cache_read: 0.2	2026-03-09
grok-4.20-0309-reasoning Grok 4.20 (Reasoning)	grok	image, pdf, text	text	tools, schema, reasoning, temperature	context: 1000000 / output: 30000	input: 1.25 / output: 2.5 / cache_read: 0.2	2026-03-09
grok-4.20-multi-agent-0309 Grok 4.20 Multi-Agent	grok	image, pdf, text	text	schema, reasoning, temperature	context: 1000000 / output: 30000	input: 1.25 / output: 2.5 / cache_read: 0.2	2026-03-09
grok-4.3 Grok 4.3	grok	image, pdf, text	text	tools, schema, reasoning, temperature	context: 1000000 / output: 30000	input: 1.25 / output: 2.5 / cache_read: 0.2	2026-04-17
grok-build-0.1 Grok Build 0.1	grok-build	image, pdf, text	text	tools, schema, reasoning, temperature	context: 256000 / output: 256000	input: 1 / output: 2 / cache_read: 0.2	2026-04-16
grok-imagine-image Grok Imagine Image	grok	image, pdf, text	image, pdf	-	context: 8000 / output: 0	-	2026-01-28
grok-imagine-image-quality Grok Imagine Image Quality	grok	image, pdf, text	image, pdf	-	context: 8000 / output: 0	-	2026-04-03
grok-imagine-video Grok Imagine Video	grok	image, pdf, text, video	video	-	context: 1024 / output: 0	-	2026-01-28

Read Gateway caveats before enabling this provider in production.