Grok 4.5 API pricing
Grok 4.5 costs $2 per million input tokens and $6 per million output tokens. A typical chatbot request (about 1,500 input + 400 output tokens) costs $0.0056, or $5.55 per 1,000 requests.
0 characters0 words0 tokens (GPT o200k)
| Model | Per month |
|---|---|
| Grok 4.5 |
≈ = estimated token count: only OpenAI publishes its tokenizer. Claude counts use Anthropic’s published ratios; use the count_tokens API for an exact number.
Grok 4.5 price per million tokens
USD, xAI standard tier. Prices checked on October 28, 2026.
| Token type | Price per 1M | With Batch API |
|---|---|---|
| Input | $2 | $1.6 |
| Cached input | $0.3 | $0.24 |
| Output | $6 | $4.8 |
| Input, prompts above 200K | $4 | $3.2 |
| Cached input, above 200K | $0.6 | $0.48 |
| Output, prompts above 200K | $12 | $9.6 |
Above 200K prompt tokens the higher rate applies to the whole request.
Model ID: grok-4.5 · Source: docs.x.ai
What a Grok 4.5 request costs
| Request | Per request | Per 1,000 |
|---|---|---|
| Short chat reply 500 input + 200 output tokens | $0.0022 | $2.25 |
| Chatbot turn with context 1,500 input + 400 output tokens | $0.0056 | $5.55 |
| Document Q&A (RAG) 8,000 input + 500 output tokens | $0.02 | $19.80 |
| Long-document summary 150,000 input + 2,000 output tokens | $0.33 | $327 |
Token counts are measured with GPT's o200k tokenizer and converted for Grok 4.5 (see below). No caching or batch discount.
Similarly priced models
| Model | Chatbot request | vs Grok 4.5 |
|---|---|---|
| Grok 4.7 xAI | $0.0056 | same |
| Grok 4.6 xAI | $0.0056 | same |
| Gemini 2.5 Pro Google | $0.0060 | +8% |
| GPT-4.1 OpenAI | $0.0062 | +12% |
| o3 OpenAI | $0.0062 | +12% |
| GPT-6.1 Sol OpenAI | $0.0070 | +26% |
Frequently asked questions
How much does the Grok 4.5 API cost?
Grok 4.5 costs $2 per million input tokens and $6 per million output tokens on xAI's standard tier, rising to $4 / $12 for prompts above 200K tokens. Prices checked on October 28, 2026.
How much does one Grok 4.5 request cost?
A typical chatbot request with about 1,500 input and 400 output tokens costs about $0.0056, or $5.55 per 1,000 requests. Paste your own prompt into the calculator on this page for an exact estimate.
Does Grok 4.5 support prompt caching?
Yes. Cached input costs $0.3 per million tokens, 85% less than regular input.
Does Grok 4.5 have a Batch API discount?
Yes: 20% off for requests sent through the Batch API, which may take up to 24 hours. That makes it $1.6 / $4.8 per million input / output tokens.
How are Grok 4.5 tokens counted?
Grok 4.5's tokenizer is not published. We estimate about 1.05× the GPT o200k count for the same text.