ChatGPT Plus costs US$20 a month. Is it worth it? For heavy users, yes. But not everyone needs it.
Why I Upgraded to Plus
The free plan hit a wall after two weeks.
Everyday text chat is now unlimited on Free, but it uses the lightweight GPT-5.6 Luna model, including for Thinking. File uploads, image generation, and data analysis still have limits (as of 2026-09-29). Ask the same question, and a stronger model gives a precise answer with context; a lightweight model can return a blob of technically correct text that misses the point.
It feels like getting used to an automatic car, then suddenly being thrown back into a manual. You can still drive, but you know there is a smoother option.
After subscribing to Plus, the main model switches to GPT-5.6 Sol, which is enough for everyday use. Thirty to forty conversations a day rarely hit a limit. When I use it heavily in a short burst, it may slow down a little, but it usually recovers after a few minutes.
Usage and subscription details below were checked on 2026-09-29. OpenAI changes its plans and limits often, so check the official pages and checkout screen for current details.
What Do You Actually Get With Plus?
The differences you feel every day:
Model access is the biggest difference. Free and Go use GPT-5.6 Luna, while Plus uses GPT-5.6 Sol and lets you manually select Medium or High Thinking. ChatGPT Work and Codex also include the latest GPT-6 Astra. If you use ChatGPT as a work tool, the gap is huge.
Image generation no longer feels like rationing. The free plan’s image tool has a separate, lower usage limit, while Plus has a more generous allowance. People making social content will feel this immediately.
Personal plans can no longer create new GPTs. Plus users used to be able to make a GPT dedicated to proofreading Traditional Chinese. As of 2026-09-29, OpenAI Help says personal plans, including Plus and Pro, can no longer create GPTs. OpenAI announced on 2026-09-11 that custom GPTs will be retired and migrated to plugins; existing GPTs can still be used.
Advanced data analysis has way more headroom. Upload Excel or CSV files and let ChatGPT analyze them or draw charts. The free plan has usage limits; Plus is almost unrestricted in normal use. It is very practical if you review social metrics every week and want to spot trends quickly.
Voice conversation quota is higher. On your phone, you can talk to ChatGPT directly and have it answer by voice. It is especially useful while driving or doing housework. Since 2026-09-09, Plus includes up to 3 hours a day of GPT-Live-1. The free plan has less voice quota.
Coding gets better too. ChatGPT now integrates Codex, and its coding performance is noticeably better than earlier generations. Simple debugging, scripts, and technical questions are fine inside ChatGPT. Complex large projects are still steadier with Claude Code, but ChatGPT is already very usable as a coding assistant. GitHub Copilot is essentially ChatGPT under the hood, so going straight to OpenAI’s own Codex usually cuts out the middleman.
The Downsides of Plus
Paying does not mean everything is fixed.
I still can’t rein it in. Ask for 300 words, and it gives you 800. Tell it not to add subheadings, and it adds them anyway. This problem is the same on the free plan and Plus because it is a model behavior issue, not a plan issue. I still give long-form writing to Claude.
The occasional slowdown is frustrating. It rarely happens, but when you are rushing a draft and get rate-limited, those few minutes of waiting feel much longer.
US$20 a month is not pocket change. Especially if you also subscribe to Claude Pro and Perplexity Pro, AI tool subscriptions can easily add up to more than NT$2000 a month.
Who Should Subscribe, and Who Should Skip It?
Three rough buckets:
Subscribe if you use ChatGPT for more than half an hour every day. At that point it is already part of your workflow, and the free-plan limits will get in your way every day. The US$20 buys you smoothness, and the time it saves is absolutely worth more than US$20.
Optional if you use it three or four times a week. The free plan is honestly enough. But if you often still want to keep going after the free quota runs out, that is the moment to subscribe.
Skip it if you use it fewer than ten times a month. The free plan is completely enough. Save the money.
ChatGPT Go vs Plus: What’s the Difference?
Go is the lower-cost plan between Free and Plus. When OpenAI launched it globally, it announced a US price of US$8/month; Plus costs US$20/month. Taiwan prices depend on the checkout page, and both plans are monthly only. The table reflects OpenAI’s pricing page and Help Center as of 2026-09-29.
| Feature | Go | Plus |
|---|---|---|
| Chat model | GPT-5.6 Luna (including Thinking) | GPT-5.6 Sol, with Medium and High Thinking options |
| GPT-6 Astra | Not included | Available in ChatGPT Work and Codex |
| Everyday text chat | Unlimited | Unlimited |
| Image generation | More than Free | Higher quality, with image generation in Thinking |
| Deep research and Codex | Limited | Higher limits |
| ChatGPT Work | Limited; desktop only | Desktop, web, and mobile |
| Voice | Up to 3 hours/day of GPT-Live-1 mini | Up to 3 hours/day of GPT-Live-1 |
| Legacy models | Not available | Available |
| Ads | May appear | OpenAI says there are no ads |
Is Go good enough? If you mainly use ChatGPT for questions, translation, email editing, and occasional file uploads or image generation, Go is essentially “Free with higher limits.” If you need stronger reasoning, coding with Codex, or deep research, the difference is the model itself; Go cannot make up for that, so choose Plus.
How Should You Choose Between Go, Plus, and Pro?
In 2026, OpenAI added a Go plan between Free and Plus. Its announced US price is US$8/month; check the checkout page for Taiwan pricing. Go offers higher limits for image generation, file uploads, and data analysis than Free, plus longer memory, but uses the same model as Free. If you only use the free plan a few times a day, you can stay free. If you’re burning through Go’s quota every day, it still won’t be enough; just go to Plus. Go is better for people who use ChatGPT occasionally but do not want to get blocked by the free plan.
Pro has US$100/month and US$200/month tiers (new subscriptions and upgrades to US$200 have been paused since 2026-09-10). What do you get? GPT-6 Pro in chat, powered by GPT-6 Astra (50 messages/week on US$100, shared with GPT-5.6 Sol Pro; 200/week on US$200), 5x or 20x the overall usage of Plus, and more room for advanced tools such as Codex and deep research. But on Plus, I rarely hit the limit. For most people, the extra Pro quota will sit unused.
The flagship Pro reasoning model is suited to complex math, extended research, and debugging code. But everyday use rarely needs reasoning at that level.
For most people, Plus is enough. Pro is for people who use AI as a primary production tool and run hundreds of conversations a day.
Penchan’s Experience
I currently subscribe to ChatGPT Pro, Claude Max, and Perplexity Pro, for about NT$7000 a month. Each has a different role: ChatGPT for brainstorming, quick Q&A, and image generation; Claude for long-form writing and code; Perplexity for research and Deep Research.
If I could choose only one on a tight budget, I would start with ChatGPT Plus: it is a Swiss Army knife for everyday users. For long-form writing, though, I still prefer Claude for its writing feel. For versatility, ChatGPT is hard to beat.
Further Reading
— Penchan