From prompt to request cost
Estimated request cost equals input tokens multiplied by $2 per million, plus expected output multiplied by $6 per million. Cached input is separate only when the provider publishes a rate.
Grok token calculator
Estimate Grok context and cost before sending.
A private planning calculator for Grok prompts, expected output, context headroom, and xAI token pricing.
Grok 4.5500,000token context window
$2 input / 1M — cached / 1M $6 output / 1M
Official · verified 2026-07-31View provider pricing ↗xAI publishes input/output pricing; no cached-input rate listed.What this page helps you decide
- Measure plain-text prompt size locally.
- See input and output cost separately.
- Compare Grok with Claude, GPT, Gemini, and Kimi.
Prices are planning references, not a billing guarantee. Check the provider’s current pricing before launch.
Estimate a Grok 4.5 request
500,000 context
0input tokens · local estimate
$0.0000estimated input cost
$0.0030reserved output cost
$0.0030estimated request total
0.10% of context reserved. Planning estimate based on characters ÷ 4; provider tokenizers and structured requests can differ.
Count the assembled request
System instructions, conversation history, retrieved documents, tool definitions, files, and response length all matter. Use the visible prompt for drafting, then validate the final payload with xAI.
Before you rely on the number
Grok 4.5 calculator questions
Is this Grok 4.5 token count exact?
No. It is a private plain-text planning estimate. xAI tokenization, chat formatting, tools, files, and images can change the real count.
Does the prompt leave my browser?
No. The calculator runs locally in your browser. Only the page itself and published registry data are loaded from PromptCostLab.
How should I verify production cost?
Check the linked xAI pricing page, then compare the estimate with token usage returned by the real API request.