Model pricing

Grok 4.20 Reasoning API pricing

Get Grok 4.20 Reasoning API rates: $1.25/MTok input, $2.5/MTok output. Compare cache pricing, context limits, and API capabilities.

Input / 1M tokens $1.25

Output / 1M tokens $2.5

Cache read / 1M $0.2

Context window 1M

When to use Grok 4.20 Reasoning

Grok 4.20 Reasoning is listed from xai with prompt caching, function calling. Use this page to estimate prompt cost and compare it against alternatives before routing production workloads.

source_key: grok-4.20-0309-reasoning