OpenAI vs Grok API pricing

Checked against the official price pages on 2026-10-14

In short

At 100M input and 20M output tokens a month, the cheapest model from each is gpt-6-luna (about ¥135 a month) and grok-4.3 (about ¥1,178 a month). OpenAI's entry model is cheaper; Grok's costs about 8.8 times as much.

The most expensive from each is gpt-6-astra (about ¥13,466 a month) and grok-4.7 (about ¥2,155 a month). Price says nothing about whether the models are equally capable; weigh it with benchmarks and context length.

For your own usage: API cost calculator

All models

Prices are per million tokens: ¥ is CNY, $ is USD; time-of-day pricing is written peak / off-peak. Monthly cost is in CNY and assumes 100M input and 20M output tokens a month, no cache hits and half of calls at peak hours where that applies, cheapest first. Models priced in USD are converted at 1 USD = 6.733 CNY (PBoC central parity, 2026-10-09).

Model	Input	Cache hit	Output	Monthly (CNY)
OpenAIgpt-6-luna	$0.1	$0.01	$0.5	135
xAIgrok-4.3	$1.25	$0.2	$2.5	1,178
xAIgrok-4.7	$2	$0.5	$6	2,155
OpenAIgpt-6.1-sol	$2	$0.1	$10	2,693
OpenAIgpt-6-astra	$10	$1	$50	13,466

OpenAI vs Grok API pricing

In short

All models

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