100,000 Grok 4.1 Fast tokens cost $0.02 as input or $0.05 as output. Most workloads land in between — a 70/30 input/output split costs about $0.029. Verified Aug 28, 2026
Quick answer
For Grok 4.1 Fast, 100,000 tokens cost $0.02 as input or $0.05 as output. A representative 70/30 workload is about $0.029.
Method & trust
The page prices the selected token volume using the model's listed input and output rates, then applies a 70/30 input/output split for the representative workload. Cached input, batch discounts, retries, and provider fees can change the final invoice.
Interactive calculator
100,000 in · 0 out
Input price
$0.20 / 1M tokens
Output price
$0.50 / 1M tokens
Uncached pricing. Add caching and monthly projections in the full calculator.
What 100,000 tokens buys in practice
$0.026
80% input / 20% output — short replies over conversation history.
$0.023
90% input / 10% output — long retrieved context, grounded answers.
$0.0215
95% input / 5% output — full documents in, structured extraction out.
Same 100,000 tokens on other models
FAQ
100,000 input tokens cost $0.02; 100,000 output tokens cost $0.05. A typical 70/30 input/output mix costs about $0.029. Rates: $0.20/M input, $0.50/M output.
A chat-style request of ~4,800 tokens (4,000 in + 800 out) means 100,000 tokens is roughly 21 requests. For a RAG workload with ~8,500 tokens per request, about 12 requests.
Yes — cached input costs $0.04/M instead of $0.20/M, a 80% discount on repeated context.