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Grok 4.5 Pricing

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Prices verified July 29, 2026

Grok 4.5 costs $2 per million input tokens and $6 per million output tokens on the xAI API. Cached input reads are billed at $0.5 per million tokens. It supports a 500,000-token context window. The model supports extended reasoning, tool use. Released July 8, 2026. Pricing verified July 29, 2026.

Grok 4.5 API pricing

Input (per 1M tokens)
$2
Output (per 1M tokens)
$6
Cached input (per 1M tokens)
$0.5
Context window
500,000 tokens
Released
July 8, 2026
Estimate your Grok 4.5 cost

Capabilities

Extended reasoningTool use

Price history

No price snapshots recorded yet.

Frequently asked questions

Notes

1.5T param coding-focused model trained on Cursor data. Musk describes it as "Opus-class" โ€” competitive with Anthropic's top tier. TIERED PRICING at 200K prompt threshold: โ‰ค200K prompts at $2/$0.50 cached/$6 per MTok (input/cached/output); >200K prompts at $4/$1/$12. Configurable reasoning_effort (low/medium/high, default high). Supports function calling, web search, X search, code execution, prompt caching. Available in Cursor (all plans), Grok Build, xAI console, OpenRouter, Vercel, Cloudflare, Snowflake, Databricks Mosaic.