Skip to content
CostPerPrompt

Grok 4.3 API Pricing

xAI · context window 1M · prices updated 2026-08-02

Input per 1M tokens
$1.25
Output per 1M tokens
$2.50
Cached input per 1M
$0.2
84% cheaper than fresh input

What real workloads cost on Grok 4.3

Workload Per request Per month
1K short requests/day (500 in / 150 out) $0.001 $30.00
Support chatbot, 500 convs/day (~5K in / 1.4K out per conv) $0.0097 $146
Document pipeline, 10K docs/day (3K in / 500 out) $0.005 $1500

Model your exact traffic in the API cost calculator — it preloads Grok 4.3 with caching and batch options.

Cheaper alternatives

Qwen3 VL 30B A3B Thinking Alibaba (Qwen) $0.2 in · $2.40 out Qwen3 30B A3B Thinking 2507 Alibaba (Qwen) $0.2 in · $2.40 out GPT Audio Mini OpenAI $0.6 in · $2.40 out

More xAI models

Grok 4.5 Grok 4.20 Multi-Agent Grok 4.20 Grok Build 0.1

Frequently asked questions

› How much does the Grok 4.3 API cost?

Grok 4.3 costs $1.25 per million input tokens and $2.50 per million output tokens, with cached input at $0.2 per million (84% cheaper). In practice, a typical short request (500 tokens in, 150 out) costs about $0.001.

› What does 1,000 requests per day cost on Grok 4.3?

At 500 input + 150 output tokens per request, 1,000 requests/day costs about $30.00 per month. Heavier workloads scale linearly — use our API cost calculator to model your exact traffic.

› How can I reduce Grok 4.3 costs?

Three levers, in order of impact: (1) route routine requests to a cheaper tier and keep Grok 4.3 for hard cases; (2) enable prompt caching — cached input is 84% cheaper, which typically halves chatbot bills; (3) use the batch API for non-urgent jobs at a ~50% discount.

› Is Grok 4.3 worth the price?

It depends on task difficulty. Flagship models earn their premium on complex reasoning, coding, and high-stakes output; mini/flash tiers handle classification, extraction and routine chat at 10–30× lower cost. Benchmark a sample of your real workload on both before committing.