Grok 4.5 API pricing
As of October 16, 2026, Grok 4.5 costs $2.00 per million input tokens and $6.00 per million output tokens on the xAI API. Cached input is $0.30 per million.
It is the 5th cheapest of 7 Grok models tracked here, by blended price. The closest Standard-tier model from another provider is Mistral Medium 3 (Mistral) at $1.50 / $7.50, the same blended price. Same list price as Grok 4.6, Grok 4.7. First listed in the LiteLLM price data on July 8, 2026. Prompts longer than 200K tokens are billed at $4.00 input / $12.00 output.
Input / 1M tokens$2.00
Output / 1M tokens$6.00
Context window500K
Max output500K
Every published rate
| Rate | Per 1M tokens |
|---|
| Input (standard) | $2.00 |
| Output (standard) | $6.00 |
| Cached input (read) | $0.30 |
| Input, prompts over 200K tokens | $4.00 |
| Output, prompts over 200K tokens | $12.00 |
What it costs in practice
| Task | Tokens | Per request | Per 1,000 requests |
|---|
| Chatbot reply | 1,000 in / 500 out | $0.005 | $5.00 |
| Summarize a long document | 20,000 in / 1,000 out | $0.05 | $46.00 |
| Coding agent step | 50,000 in / 2,000 out | $0.11 | $112 |
Standard rates, no caching or batch discount; prompts over 200K tokens are billed at the higher long-prompt rate. Compare your own numbers across all models →
Price history
| Date | Model | Change |
|---|
| 2026-07-08 | Grok 4.5 | New model listed: $2 in / $6 out source |
Dates are when each change first appeared in the LiteLLM price data, usually within days of the provider's announcement.
Details
| Provider | xAI |
| Price tier | Standard |
| Features | Vision, Reasoning, Prompt caching, Tool use, Web search |
| API model names | grok-4.5, grok-4.5-latest |
| Official pricing | api.x.ai |
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