grok-4.3

Text

Grok 4.3 is a reasoning model from xAI that supports text and image inputs with text output. It is suited for agentic workflows, instruction following, long-document analysis, and deep research. The model supports a 1M token context window. Requests above 200K total tokens are billed at a higher rate.

Input price

$2.12515% off

Market: $2.5

/ M

Output price

$4.2515% off

Market: $5

/ M

Cache read

$0.3415% off

Market: $0.4

/ M

Cache write

$015% off

/ M

Input

Text

Output

Text

API

Quick Start

Drop-in code to call this model with EasyAPI's OpenAI-compatible API.

Get your API key

Create an API key from your dashboard and set it as an environment variable:

Replace sk-xxxxxxxx with your API token from the console (Bearer token).

Create API token

shell

export EASYAPI_API_KEY=sk-xxxxxxxx

Make your first request

Use xai/grok-4.3 with the EasyAPI API:

cURL

curl https://token.easyapi.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $EASYAPI_API_KEY" \
  -d '{"model":"xai/grok-4.3","messages":[{"role":"user","content":"Hello!"}]}'

Enable streaming

Add "stream": true to your request body to receive responses as server-sent events:

curl

curl -N https://token.easyapi.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $EASYAPI_API_KEY" \
  -d '{"model":"xai/grok-4.3","messages":[{"role":"user","content":"Hello!"}],"stream":true}'

Endpoint

Sends a chat completion request. Supports streaming and non-streaming modes.

POSThttps://token.easyapi.com/v1/chat/completions

Authorization: Bearer $EASYAPI_API_KEY
Content-Type: application/json
Model: xai/grok-4.3

发送对话补全请求，支持流式与非流式。 Docs

GEThttps://token.easyapi.com/v1/models

Authorization: Bearer $EASYAPI_API_KEY

获取当前账户可用模型列表。 Docs

Parameters

Name	Type	Default	Description
`model`	string	—	模型 ID，如 openai/gpt-4o、anthropic/claude-3-5-sonnet
`messages`	array	—	对话消息列表，每项含 role 与 content
`stream`	boolean	false	设为 true 时以 SSE 流式返回
`temperature`	float	1	采样温度，越高越随机
`max_tokens`	integer	—	单次回复最大生成 Token 数
`top_p`	float	1	核采样，限制候选词累积概率
`frequency_penalty`	float	0	频率惩罚，降低重复用词
`presence_penalty`	float	0	存在惩罚，鼓励新话题

Using third-party SDKs

Official OpenAI and other SDKs work by swapping the base URL. See integration guide

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