X.ai: grok-4.5

Grok 4.5 is an xAI flagship release aimed at coding, agentic tasks, and knowledge work.

Modetext → text

Input price$2 per M tokens

Output price$6 per M tokens

Context length

Weekly usage6.967K tokens

Listed at

X.ai

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Input price$2per 1M tokens

Output price$6per 1M tokens

Cache read$1per 1M tokens

Cache write$0per 1M tokens

Performance

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Code Example

Replace <YOUR_API_KEY> with the API key generated on your token management page.

Authentication

All requests must include the Authorization: Bearer <TOKEN> header.

Endpoint Path

POST

Supported Parameters

ParameterTypeDefaultDescription

Rate Limits

GroupRPMTPMRPD

RPM = requests per minute, TPM = tokens per minute, RPD = requests per day. Limits apply by token group.

Pricing

GroupBilling typePrice summary

Grok0%

Per call

Input price2per 1M tokens

Completion price6per 1M tokens