grok-4-fast-reasoning

Model overview

Provider

xAI

Billing

Token-based billing

Supported API endpoints

anthropic, openai

Capabilities and tags

• 对话
• 思考

Pricing information

Base input price per million tokens: $0.2 USD; Base output price per million tokens: $0.5 USD. Final pricing may vary by user group.

Token-based billing multiplier: 0.1; output multiplier: 2.5.

Cached input multiplier: 0.25

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