Question 1

Which subscription plan that includes GPT 5.4 Mini is the cheapest?

Accepted Answer

Of the 6 plans compared here, ChatGPT Go on OpenAI is the lowest at $8.00/month. A free tier is also available for light usage. Plans on different product lines (for example a chat subscription versus a coding plan) are not direct substitutes, so pick by use case rather than price alone.

Question 2

Can I use GPT 5.4 Mini for free?

Accepted Answer

Yes — the comparison includes plans with a free tier, so you can use the model at no cost with lower message and rate limits; paid tiers raise those limits.

Question 3

How much cheaper is annual versus monthly billing?

Accepted Answer

Based on each plan's published monthly and annual prices, paying yearly (prorated per month) saves up to 17% versus month-to-month. The exact discount varies by plan — see checkout for a specific tier.

Question 4

Can I use these plans from mainland China?

Accepted Answer

These plans are directly reachable from mainland China: OpenAI, OpenAI, OpenAI, OpenAI. Domestic channels generally support Alipay/WeChat Pay.

Question 5

How often are these plan prices updated?

Accepted Answer

Plan prices are collected daily from official and channel pages and cross-checked by a read-only data audit. Features, limits, and pricing can change — confirm on the official checkout page before subscribing.

GPT 5.4 Mini Plans

FAQ

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📝 Notes