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grok-4

xAIChatReasoning
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grok-4

A mature conversational model for complex reasoning and code analysis

grok-4 is xAI's Grok 4 reasoning conversational model, suitable for tasks that require breaking down conditions, analyzing code, comparing options, and following up continuously. On this platform, you can organize context through chat messages or use managed sessions to continue discussions. It is better suited for analysis based on clearly defined materials, rather than treating a single response as an automated execution program or real-time information query.

xAIModel brand
ConversationalModel type
ReasoningTask capability

Specifications and interface features

Clarify capacity, input/output, and invocation methods before selecting a model.

Capability positioning
Reasoning conversation for mathematics, programming, and complex analysis
Message input
Text; image-and-text messages can use image_url content blocks
Response method
Assistant text responses, with streaming supported
Tool interaction
The chat interface provides function tool definitions and call result write-back
Context organization
messages history, or an AI Chat v2 conversation id
Invocation endpoints
/grok/chat/completions;/aichat2/conversations

Reasoning positioning is a model capability; message format, streaming responses, and session management are platform invocation methods and are not equivalent to native capacity specifications.

Core Capabilities

Learn what grok-4 can bring to your work.

Break complex problems into verifiable steps

Grok 4 focuses on reasoning-based conversations. For problems with multiple conditions, you can ask it to organize the known conditions first, then compare hypotheses, explain the derivation, and provide a conclusion. It is suitable for mathematical discussions, technical trade-off decisions, and business rule analysis; clearly stating the conditions and acceptance criteria is more helpful for checking answers than simply asking it to “think deeply.”

Continuously analyze and revise code

After submitting code snippets, error messages, and expected behavior, you can ask grok-4 to help identify issues, propose modifications, and explain the impact. Continuing to add test results helps gradually narrow the scope of investigation. It delivers code and analytical recommendations; compilation, testing, and deployment must still be completed in the actual development environment.

Organize conversations according to application needs

Applications that maintain message history themselves can use the chat endpoint, passing user questions and assistant responses turn by turn. If you want to reduce session management code, you can choose AI Chat v2 and continue the discussion through the same session id. Streaming responses make it easier to display content as it is generated, but the interface should distinguish response fragments, completion states, and error events.

Use Cases

Start with specific tasks to find where the model can be effective.

Technical troubleshooting

Enter the relevant functions, error stack, runtime environment, and fixes already attempted, and let grok-4 organize possible causes, suggest an investigation order, and generate a draft modification. Deliverables may include issue explanations, patch suggestions, and a testing checklist; then bring actual test results back into the conversation to continue verification rather than directly accepting the initial assessment.

Solution review and rule analysis

Provide business goals, constraints, and candidate solutions, ask the model to compare them using consistent criteria, and identify which conclusions depend on additional assumptions. This is suitable for creating technical selection documentation, rule conflict lists, or review outlines. Important data should be provided together with the question, keeping the discussion focused on facts in the materials and verifiable decision-making grounds.

Continuous learning and problem explanation

Enter the problem, your own solution process, and where you are stuck, and let grok-4 explain key concepts, check the steps, and provide targeted practice suggestions. Through continuous follow-up questions, you can move from intuitive explanations to formulas or code expressions. The deliverables are explanatory and practice drafts; calculation results and boundary conditions should still be checked before formal use.

How to Choose This Model

Choose based on task complexity, input materials, and expected results.

Existing Grok 4 Workflow: Prioritize Evaluating Task Fit

If your application has already established processes around grok-4's response style, prompts, and test sets, you can continue using it for reasoning, code analysis, and content tasks. Grok 4.7 is a different version; its long-context or reasoning configuration should not be applied directly to Grok 4. Whether to upgrade should be based on comparing results from the same set of real-world tasks.

Chat Control and Managed Sessions Each Have Their Strengths

If you need to trim history yourself, handle function calls, or read token usage, /grok/chat/completions is more straightforward. If you need to save discussions and continue follow-up questions by id, choose /aichat2/conversations. The two entry points change the integration method; they do not turn Grok 4 into another version or grant it every media capability.

Getting Started

From a small-scale task to production integration.

01

Prepare Tasks and Materials

Define the goal, required inputs, and output requirements, and use real business examples as a starting point.

02

Try It in the API Playground

Open the trial page, confirm the parameters supported by this endpoint, then submit a small-scale task to review the results.

03

Integrate According to the API Documentation

Keep the complete model ID, use the request format specified in the documentation, and confirm billing rules on the Pricing page.

Usage Limitations

Before production use, understand output quality and the scope of capabilities.

  • Grok 4's reasoning responses may still be based on incorrect assumptions. For mathematical proofs, code fixes, and complex rule judgments, retain verifiable intermediate evidence and validate conclusions using tests, calculations, or human review; a detailed response does not mean every derivation is correct.
  • Basic chat does not automatically provide real-time news, market data, or the latest software changes. When recent facts are involved, provide dated materials or obtain information through a session workflow with search tools; do not treat the model's confident tone as evidence that the information has been updated.
  • Image input is for assisting image-and-text analysis, not image generation; function calling does not directly execute programs either. File reading and tool operations require the appropriate endpoint and permissions, and audio, search, and other fields in shared requests should not be understood as capabilities that Grok 4 necessarily has.

Frequently Asked Questions

Answers to common questions about using grok-4.

Are grok-4 and Grok 4.7 the same model?

No. grok-4 is the invocation ID for Grok 4, while Grok 4.7 is a different version. Evaluate task performance separately when choosing; do not treat Grok 4.7's context length, reasoning configuration, or new features as specifications for Grok 4, and do not judge migration benefits solely by version names.

How can I make grok-4 analyze code better?

Provide the code, error messages, expected results, and runtime environment, and specify which parts cannot be modified. You can first ask it to identify the cause, then generate a repair draft and testing checklist. After completing actual tests, bring failed cases back into the same conversation for further analysis; avoid confirming a successful fix based only on textual explanations.

Do I need to save history myself for grok-4 multi-turn conversations?

When using the chat endpoint, you need to organize relevant history into messages. When using AI Chat v2, you can enable conversation persistence and include the same id in subsequent requests. Both approaches should avoid mixing in history from unrelated tasks; managed conversations do not mean the model has unlimited memory.

Can grok-4 directly look up the latest information?

Simply sending a question does not mean performing a real-time search. Recent events should be analyzed together with search tool results or the latest materials you provide. For answers requiring timely information, it is recommended to request that source dates be specified and to separate factual statements from model inferences for easier later verification.

Is the business operation complete after grok-4 returns a tool call?

Not necessarily. Function calling in the chat endpoint expresses the function and parameters to use; the application still needs to validate, execute, and return the result. When using a conversation tool workflow, also check permissions and execution status; operations involving writing, publishing, or deletion should retain explicit authorization and failure handling.

Model information · Updated: 2026-10-01. See the API and Pricing sections for invocation parameters and billing rules.

Use grok-4 for your next task

Start with a clear goal and determine from real results whether it is suitable for your work.