Grok 4.3 API pricing
Grok 4.3 costs $1.25 per million input tokens and $2.5 per million output tokens. A typical chatbot request (about 1,500 input + 400 output tokens) costs $0.0030, or $2.97 per 1,000 requests.
0 characters0 words0 tokens (GPT o200k)
| Model | Per month |
|---|---|
| Grok 4.3 |
≈ = 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 4.3 price per million tokens
USD, xAI standard tier. Prices checked on October 28, 2026.
| Token type | Price per 1M | With Batch API |
|---|---|---|
| Input | $1.25 | $1 |
| Cached input | $0.2 | $0.16 |
| Output | $2.5 | $2 |
| Input, prompts above 200K | $2.5 | $2 |
| Cached input, above 200K | $0.4 | $0.32 |
| Output, prompts above 200K | $5 | $4 |
Above 200K prompt tokens the higher rate applies to the whole request.
Model ID: grok-4.3 · Source: docs.x.ai
What a Grok 4.3 request costs
| Request | Per request | Per 1,000 |
|---|---|---|
| Short chat reply 500 input + 200 output tokens | $0.0012 | $1.16 |
| Chatbot turn with context 1,500 input + 400 output tokens | $0.0030 | $2.97 |
| Document Q&A (RAG) 8,000 input + 500 output tokens | $0.01 | $11.75 |
| Long-document summary 150,000 input + 2,000 output tokens | $0.20 | $202 |
Token counts are measured with GPT's o200k tokenizer and converted for Grok 4.3 (see below). No caching or batch discount.
Similarly priced models
| Model | Chatbot request | vs Grok 4.3 |
|---|---|---|
| Gemini 3.8 Flash Google | $0.0027 | −10% |
| Gemini 3.6 Flash Google | $0.0027 | −10% |
| GPT-5.4 mini OpenAI | $0.0029 | −1% |
| Grok 4.20 xAI | $0.0030 | same |
| o4-mini OpenAI | $0.0034 | +15% |
| GPT-6.1 Terra OpenAI | $0.0035 | +18% |
Frequently asked questions
How much does the Grok 4.3 API cost?
Grok 4.3 costs $1.25 per million input tokens and $2.5 per million output tokens on xAI's standard tier, rising to $2.5 / $5 for prompts above 200K tokens. Prices checked on October 28, 2026.
How much does one Grok 4.3 request cost?
A typical chatbot request with about 1,500 input and 400 output tokens costs about $0.0030, or $2.97 per 1,000 requests. Paste your own prompt into the calculator on this page for an exact estimate.
Does Grok 4.3 support prompt caching?
Yes. Cached input costs $0.2 per million tokens, 84% less than regular input.
Does Grok 4.3 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 / $2 per million input / output tokens.
How are Grok 4.3 tokens counted?
Grok 4.3's tokenizer is not published. We estimate about 1.05× the GPT o200k count for the same text.