NT$0/month, open to everyone. The official site lists the free-tier limits one by one: limited access to GPT-5.5 Instant, limited messages and uploads, limited and slower image generation, limited deep research, limited memory and context, limited Codex, limited ChatGPT Work desktop app. The only place the official site gives concrete numbers is the plan comparison table: free-tier GPT Instant total context window 27K (Go/Plus 54K, Pro 128K); free-tier single-input cap about 12 pages of text (Go/Plus about 40 pages, Pro about 250 pages); the context window for reasoning models is marked depends on the situation for the free tier (Go/Plus 256K, Pro 400K). Response time on the free tier is marked as limited by system resources and service conditions; only paid plans are fast. Chat history is unlimited on the free tier. Whether content is used for model training can be opted out of. The official site has never published a concrete messages-per-day figure, and this site does not fill in an estimate. (Read directly from chatgpt.com/zh-Hant/pricing over a Taiwan connection on 2026-08-09)
NT$0/month, free to anyone with a Google account. Model available: Gemini 3.6 Flash; the official site states plainly that access to 3.1 Pro may vary, meaning free-tier access to Pro fluctuates and is not guaranteed. Features included on the free tier: image generation and editing, Deep Research, Gemini Live, Canvas, Gems, Gemini Notebook (research and writing), the Google Flow creative studio, plus limited usage of Nano Banana Pro. Cloud storage 15 GB (shared across Gmail/Drive/Photos). How the quota is counted and when it resets, in the official footnote's own words: the Gemini app measures usage limits by compute, which depends on prompt complexity, the features you use and conversation length; usage resets every 5 hours, up to a weekly usage cap. In other words the free tier is not a fixed number of messages per day but a compute allowance that resets every 5 hours plus an overall weekly cap; long conversations, Deep Research and image generation burn through it faster than plain chat. When the quota runs out you can buy AI credits. The official site does not publish the specific compute figure for the free tier. (Read directly from gemini.google/subscriptions over a Taiwan connection on 2026-08-09)
Only adds capacity, not features. | 🇹🇼 Actual Taiwan list price NT$270/month (read directly from the Traditional Chinese official site via a Taiwan connection on 2026-08-09, not a USD exchange-rate conversion, logged separately per rule 10.5).
Plus
US$20 / mo
| 🇹🇼 Actual Taiwan list price NT$690/month (checked 2026-08-09 via a Taiwan connection reading the official Traditional Chinese site directly — not a USD exchange-rate conversion, recorded separately per 10.5)
Pro
US$100 / mo
A third-party source mentioned that a lower-tier Pro plan was added in April 2026, but this has not been directly confirmed on the official website; ⚠️as of 2026-07-26, the official website agent (r.jina.ai) shows the official description as a single "Pro: From US$100/month, 5x or 20x more usage", without any mention of "Pro Max", and it remains to be manually reviewed whether this Pro/Pro Max two-tier model should be merged into a single Pro plan (with 5x/20x usage options) ｜🇹🇼 The actual price in Taiwan is NT$3300/month (as of 2026-08-09, directly read from the official website's Traditional Chinese version in Taiwan, not converted from USD, recorded with a decimal point of 10.5)
Pro Max
US$200 / mo
The original database's US$200 Pro plan currently coexists with a lower-level Pro plan (from a third-party source, not directly confirmed on the official website); ⚠️as of 2026-07-26, the official website's proxy capture did not show "Pro Max" as an official name, possibly fabricated by a third party or actually referring to the 20x usage option of the Pro plan, pending manual review
Business
US$25 / user / mo（5 user ≈ US$125/mo）
Self-serve enterprise plan, per user/month (from third-party sources, not directly confirmed on the official website); as of 2026-07-26, a secondary source (help.openai.com summary) states that the actual price is US$20/person/month billed annually or US$25/person/month billed monthly (with a minimum of 2 people), not directly confirmed on the official website
Gemini
Plan
Price
What you get
AI Plus
US$4.99 / mo
Corrected from US$7.99 to US$4.99 (a permanent official price cut effective 2026/6/9, not a limited-time discount; storage went from 200GB to 400GB) | 🇹🇼 Actual Taiwan list price NT$165/month (read directly from the Traditional Chinese official site via a Taiwan connection on 2026-08-09, not a USD exchange-rate conversion — recorded separately per rule 10.5)
AI Pro
US$19.99 / mo
🇹🇼 Actual Taiwan list price NT$650/month (2026-08-09, read directly from the official Traditional-Chinese site via a Taiwan connection, not a USD exchange-rate conversion, recorded separately per 10.5)
AI Ultra 5x
US$99.99 / mo
The original single US$250 Ultra tier, restructured into a new plan (5x the usage) | 🇹🇼 Actual Taiwan list price NT$3,300/month (2026-08-09, read directly from the official Traditional-Chinese site via a Taiwan connection, not a USD exchange-rate conversion, recorded separately per 10.5)
AI Ultra 20x
US$199.99 / mo
The original single US$250 Ultra tier, restructured into a new plan (20x the usage, lower price than original) | 🇹🇼 Actual Taiwan list price NT$6,500/month (2026-08-09, read directly from the official Traditional-Chinese site via a Taiwan connection, not a USD exchange-rate conversion, recorded separately per 10.5)
Which one should you pick?
Both offer a free plan. Compare paid tiers against your needs.
On entry price, Gemini starts at US$4.99 / mo, cheaper than ChatGPT (US$8 / mo).
FAQ
Is there a free version of ChatGPT?
Yes. NT$0/month, open to everyone. The official site lists the free-tier limits one by one: limited access to GPT-5.5 Instant, limited messages and uploads, limited and slower image generation, limited deep research, limited memory and context, limited Codex, limited ChatGPT Work desktop app. The only place the official site gives concrete numbers is the plan comparison table: free-tier GPT Instant total context window 27K (Go/Plus 54K, Pro 128K); free-tier single-input cap about 12 pages of text (Go/Plus about 40 pages, Pro about 250 pages); the context window for reasoning models is marked depends on the situation for the free tier (Go/Plus 256K, Pro 400K). Response time on the free tier is marked as limited by system resources and service conditions; only paid plans are fast. Chat history is unlimited on the free tier. Whether content is used for model training can be opted out of. The official site has never published a concrete messages-per-day figure, and this site does not fill in an estimate. (Read directly from chatgpt.com/zh-Hant/pricing over a Taiwan connection on 2026-08-09)
How much does ChatGPT cost?
The cheapest is the plan from ChatGPT named Go, at about US$8 / mo.
Does ChatGPT support Chinese?
ChatGPT offers full Chinese interface support.
Is there a free version of Gemini?
Yes. NT$0/month, free to anyone with a Google account. Model available: Gemini 3.6 Flash; the official site states plainly that access to 3.1 Pro may vary, meaning free-tier access to Pro fluctuates and is not guaranteed. Features included on the free tier: image generation and editing, Deep Research, Gemini Live, Canvas, Gems, Gemini Notebook (research and writing), the Google Flow creative studio, plus limited usage of Nano Banana Pro. Cloud storage 15 GB (shared across Gmail/Drive/Photos). How the quota is counted and when it resets, in the official footnote's own words: the Gemini app measures usage limits by compute, which depends on prompt complexity, the features you use and conversation length; usage resets every 5 hours, up to a weekly usage cap. In other words the free tier is not a fixed number of messages per day but a compute allowance that resets every 5 hours plus an overall weekly cap; long conversations, Deep Research and image generation burn through it faster than plain chat. When the quota runs out you can buy AI credits. The official site does not publish the specific compute figure for the free tier. (Read directly from gemini.google/subscriptions over a Taiwan connection on 2026-08-09)
How much does Gemini cost?
The cheapest is the plan from Gemini named AI Plus, at about US$4.99 / mo.
Does Gemini support Chinese?
Gemini offers full Chinese interface support.
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