Oracle Cloud Infrastructure Documentation

xAI Grok 4

The xai.grok-4 model has better performance than its predecessor, Grok 3, and excels at enterprise use cases such as data extraction, coding, and summarizing text. This model has a deep domain knowledge in finance, healthcare, law, and science.

Available in These Regions

  • US East (Ashburn) (on-demand only)
  • US Midwest (Chicago) (on-demand only)
  • US West (Phoenix) (on-demand only)
Important

External Calls

The xAI Grok models are hosted in an OCI data center, in a tenancy provisioned for xAI. The xAI Grok models, which can be accessed through the OCI Generative AI service, are managed by xAI.

Key Features

  • Model name in OCI Generative AI: xai.grok-4
  • Available On-Demand: Access this model on-demand, through the Console playground or the API.
  • Multimodal support: Input text and images and get a text output.
  • Knowledge: Has a deep domain knowledge in finance, healthcare, law, and science.
  • Context Length: 128,000 tokens (maximum prompt + response length is 128,000 tokens for keeping the context). In the playground, the response length is capped at 16,000 tokens for each run, but the context remains 128,000 tokens.
  • Excels at These Use Cases: Data extraction, coding, and summarizing text
  • Function Calling: Yes, through the API.
  • Structured Outputs: Yes.
  • Has Reasoning: Yes. For reasoning problems increase the maximum output tokens. See Model Parameters.

  • Cached Input Tokens: Yes

    Important note: The cached‑input feature is available in both the playground and the API. However, that information can only be retrieved through the API.

  • Knowledge Cutoff: November 2024

Limits

Image Inputs
  • Console: Upload one or more .png or .jpg images, each 5 MB or smaller.
  • API: Submit a base64 encoded version of an image, ensuring that each converted image is more than 512 and less than 1,792 tokens. For example, a 512 x 512 image typically converts to around 1,610 tokens.

On-Demand Mode

Note

The Grok models are available only in the on-demand mode.

Model Name OCI Model Name Pricing Page Product Name
xAI Grok 4 xai.grok-4 xAI – Grok 4
Prices are listed for:
  • Input Tokens
  • Output Tokens
  • Cached Input Tokens
You can reach the pretrained foundational models in Generative AI through two modes: on-demand and dedicated. Here are key features for the on-demand mode:

  • You pay as you go for each inference call when you use the models in the playground or when you call the models through the API.

  • Low barrier to start using Generative AI.
  • Great for experimentation, proof of concept, and model evaluation.
  • Available for the pretrained models in regions not listed as (dedicated AI cluster only).

Release Date

Model General Availability Release Date On-Demand Retirement Date Dedicated Mode Retirement Date
xai.grok-4 2025-07-23 Tentative This model isn't available for the dedicated mode.
Important

For a list of all model time lines and retirement details, see Retiring the Models.

Model Parameters

To change the model responses, you can change the values of the following parameters in the playground or the API.

Maximum output tokens

The maximum number of tokens that you want the model to generate for each response. Estimate four characters per token. Because you're prompting a chat model, the response depends on the prompt and each response doesn't necessarily use up the maximum allocated tokens. The maximum prompt + output length is 128,000 tokens for each run.

Tip

For large inputs with difficult problems, set a high value for the maximum output tokens parameter. See Troubleshooting.
Temperature

The level of randomness used to generate the output text. Min: 0, Max: 2

Tip

Start with the temperature set to 0 or less than one, and increase the temperature as you regenerate the prompts for a more creative output. High temperatures can introduce hallucinations and factually incorrect information.
Top p

A sampling method that controls the cumulative probability of the top tokens to consider for the next token. Assign p a decimal number between 0 and 1 for the probability. For example, enter 0.75 for the top 75 percent to be considered. Set p to 1 to consider all tokens.

Note

The xai.grok-4 model has reasoning, but doesn't support the reasoning_effort parameter used in the Grok 3 mini and Grok 3 mini fast models. If you specify the reasoning_effort parameter in the API for the xai.grok-4 model, you get an error response.

Troubleshooting

Issue: The Grok 4 model doesn't respond.

Cause: The Maximum output tokens parameter in the playground or the max_tokens parameter in the API is likely too low.

Action: Increase the maximum output tokens parameter.

Reason: For difficult problems that require reasoning and problem-solving, and for large sophisticated inputs, the xai.grok-4 model tends to think and consumes many tokens, so if the max_tokens parameter is too low, the model uses the allocated tokens and doesn't return a final response.