Grok API Price Doubles When Context Exceeds 200K Tokens

TinfoilTricorn · x · 2026-08-10

A user points out a hidden pricing trap in xAI's Grok API. While base prices seem cheap, Grok 4.5 doubles its costs once the prompt or context exceeds 200,000 tokens.

For long-context use cases, the price spikes to $4/M for input, $0.60/M for cached input, and a steep $12/M for output and reasoning tokens.

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