Key Information All prices are in USD. For per-model details, see the models page . Models with long context pricing bill the long context rates for all tokens in a request once its prompt reaches the model's long context threshold. Requests sent to the US regional endpoint run inference in the United States; their token usage is billed at 1.1x the global token rates, a 10% premium. Requests which make use of SpaceXSI provided server-side tools are priced based on two components: token usage and server-side tool invocations . Since the agent autonomously decides how many tools to call, costs scale with query complexity. All standard token types are billed for the model used in the request: Input tokens : Your query and conversation history Reasoning tokens : Agent's internal thinking and planning Completion tokens : The final response Image tokens : Visual content analysis (when applicable) Cached prompt tokens : Prompt tokens that were served from cache rather than recomputed Tool Invocation Costs Search the internet and browse web pages Search X posts, user profiles, and threads Run Python code in a sandboxed environment Generate and edit images Search through files attached to messages Query your uploaded document collections (RAG) Analyze images found during Web Search and X Search* Analyze videos found during X Search* Connect and use custom MCP tool servers All tool names work in the Responses API. In the gRPC API (Python xAI SDK), code_interpreter and file_search are not supported. * Only applies to images and videos found by search tools — not to images passed directly in messages. X Search is billed per item fetched rather than per call: every post returned by a search or thread fetch, including parent and quoted posts, counts toward the post rate, and every profile returned by a user search counts toward the profile rate. For the view image and view x video tools, you will not be charged for the tool invocation itself but will be charged for the image tokens used to process the image or video. Image Search is part of Web Search and is billed at the standard Web Search rate. For Remote MCP tools, you will not be charged for the tool invocation but will be charged for any tokens used. For more information on using Tools, please visit our guide on Tools .

Batch API Pricing The Batch API lets you process large volumes of requests asynchronously at a discount to standard pricing. The size of the discount varies by model. Batch requests are queued and processed in the background, with most completing within 24 hours. The batch discount applies to all token types — input tokens, output tokens, cached tokens, and reasoning tokens. Batch discounts by model: Models not listed above have no batch discount. To see a model's resulting batch prices, toggle "Show batch API pricing" on its detail page. Models that accept Batch with no discount show N/A. The batch discount applies to text and language models only. Image and video generation are supported in the Batch API but are billed at standard rates. See Batch API documentation for full details. Priority Processing Pricing Priority Processing gives text requests higher scheduling priority for lower latency. Priority requests are billed at a 2x premium over standard rates. The 2x multiplier applies to all token types — input, output, cached, and reasoning. Prompt caching discounts are applied before the multiplier. You are only billed at the priority rate when the response confirms "service_tier": "priority" . If the request is served at the default tier instead, standard rates apply. Priority Processing is available for Chat Completions and Responses endpoints only. It is not supported for image generation, video generation, or Batch API requests. See Priority Processing documentation for full details. Grok 4.7 Fast pricing (Cursor and Grok Build only) Grok 4.7 Fast is the same Grok 4.7 model served on faster infrastructure. It costs 2x the standard token rates, or 1.5x for long-context requests. It's available only in Cursor and Grok Build , and is billed through your plan there. It is not available on the public xAI API, and Grok Build's free tier does not include it. Long-context rates apply once a request's prompt exceeds 200k tokens. Cursor bills its own fast variant through your Cursor plan. US Regional Endpoint Pricing Requests sent to the US regional endpoint , https://us.api.x.ai/v1 , run inference in the United States; their token usage is billed at 1.1x the global token rates, a 10% premium. For grok-4.7 this is $2.20 / $0.55 / $6.60 per 1M tokens (input / cached input / output) below 200k prompt tokens, and $4.40 / $1.10 / $13.20 above. The 1.1x multiplier applies to input, output, and cached input tokens, including long-context rates. Prompt caching discounts are applied before the multiplier. See the Regional Endpoints documentation for the scope of the US processing and storage guarantee. Files and Collections Pricing Files and collections stored on the SpaceXSI platform are billed based on the amount of storage used. Downloading data from files and collections is charged at a flat rate based on the amount of data transferred: You can view and manage your files and collections through the xAI console or the xAI API . Usage Guidelines Violation Fee When your request is deemed to be in violation of our usage guideline by our system, we will still charge for the generation of the request. For violations that are caught before generation in the Responses API, we will charge a $0.05 usage guideline violation fee per request. Billing and Availability Your model access might vary depending on various factors such as geographical location, account limitations, etc. For how the bills are charged , visit Manage Billing for more information. For the most up-to-date information on your team's model availability , visit Models Page on xAI Console. Last updated: October 10, 2026