Author｜Sangbi District Shi Editorial Team
Release｜2026/10/29
Update｜2026/11/11

If you want to use AI to write articles, organize files, compare information, or turn a job into deliverable results, ChatGPT is a common entry-level choice.

ChatGPT is an AI service provided by OpenAI. Users can chat in natural language, provide background such as text, files or pictures, and then ask it to interpret, research, modify or produce content. The supported functions are not only chat, but also include search, file processing and multi-step work.

This article introduces the main uses of ChatGPT, the registration process, the differences between free and paid, and organizes the usage scenarios of Chat, Work, and Codex. There is no need to learn the program first when using it for the first time. You can start with a specific small task.

What is ChatGPT? What are the differences between OpenAI, GPT and ChatGPT?

OpenAI is a company that provides related models and products; GPT is a common series identifier in model names; ChatGPT is a product used by general users to interact with AI.

This distinction is important: the model determines part of the reasoning and generation capabilities, but the actual ability to search, read files, operate tools, or produce files also depends on the product interface, solutions, and available permissions.

The main meaning of the name is what users need to know. Official announcements of OpenAI companies and service providers, sources of accounts and related products, GPT and other model names. Different versions of underlying AI models have different capabilities, speeds and open scopes. ChatGPT is a user-oriented AI service that asks questions and assigns work through web pages or apps. OpenAI API services for program connection need to be used according to developer accounts, models and billing rules.

Don't assume that just because two tools use the same model, they have the same search, file, memory, or external service capabilities.

What can ChatGPT do? Seven common uses

Writing, translation and content revision

It can be used to organize article outlines, modify sentences, translate content, write letters, or change the same information into different formats.

For example, first provide the reader, topic and original data, ask it to complete the first version, and then specify "keep the facts and shorten it to 300 words", "switch to traditional Chinese" and "list the operation steps independently". This is easier to get usable results than asking "write better" all at once.

Further reading:What is Claude? 2026 Free use, price plan and registration tutorial

Search data and compare sources

When you need prices, announcements or recent news, you can explicitly ask to search the web, prioritize official sources, and include the date of the event and the original link.

The search tool obtains external data, which does not mean that every page can be read, nor does it mean that all references can directly support the entire answer. In actual work, it is still important to open important sources and confirm whether the dates, conditions and conclusions are consistent.

Further reading:What is Cloudflare? Complete introduction to website acceleration, protection, verification and AI crawler

Read images, screenshots and documents

In the support attachment entry, you can provide documents, screenshots or diagrams, request a summary, compare differences or find out the parts that need to be processed.

Don’t just upload a large document and expect the AI ​​to automatically know the key points. You can add: "Please only compare the version differences between Sections 2 and 3, and list the modification locations and impacts." Small text, complex tables or missing pages in the picture may also need to be added.

Analyze tables and create files

ChatGPT Work can help process data and produce documents, presentations, spreadsheets, PDFs and other results. You can ask it to retain formulas, description fields, or make analysis results into a downloadable file.

When finished, check the actual file, calculations, and layout, not just the summary in the chat window. When encountering blank values, duplicate data or different statistical periods, you should also first explain the processing method.

Image generation and modification

Supports plans and portals for image tools that can be used to create visual concepts, illustrations or modify existing images. When typing, it is often more helpful to state the proportions, body, purpose, and content to be retained than to just give a noun.

The available tools and quotas vary depending on the interface and solution. The image function of a certain ChatGPT portal should not be directly regarded as the capability of all Codex or API models.

OpenAI launched ChatGPT Images 2.6 on November 4, 2026, to improve the consistency of retaining people, products, and brand details when modifying images. The GIF creation feature has also begun rolling out in batches. After the function is opened, users can request to create loop animations and adjust the playback speed in ChatGPT.

Program development and tool operation

When you need to explain the program, debug or implement functions, you can provide relevant program code and error messages. For more complete development work, use Codex with its accessible projects, tests, and tools.

For general users, ChatGPT Work can also use connection services and browsers in a supported environment to process work, such as reading data, creating reports, or completing steps on the website. Operational availability depends on authorization and service support.

Voice communication and continuous work

In the supported interface, you can explain your needs, check the progress or adjust the direction through voice; it is suitable for situations where long typing is not convenient, or when you need to discuss and correct the work at the same time.

If you want to perform the same thing regularly, you should use the scheduling function provided by your account instead of just saying "Do it for me every day in the future" in a normal conversation. After creation, check the task status, time zone, source and notification method.

How to choose between Chat, ChatGPT Work, Codex and dots?

OpenAI official documents divide Chat, Work and Codex into different usage scenarios; dots focuses on continuously undertaking target and tracking work.

The entrance is suitable for demand examples. Chat Q&A, discussion, drafting and comparison. Explain nouns, change letters, and think about article titles. ChatGPT Work. Work that requires the completion of visible results, research and prepare reports, analyze data, create presentations, Codex programs and development tools. Work modification programs, testing, checking code and project dots. Continuous goals and long-term assigned tracking projects, prepare meeting materials, and regularly bring back new progress.

Novices can first use Chat to confirm their requirements; if the deliverables are clear, then select Work. Studying how Codex operates is only necessary if you need to develop tools or technical details.

These are usage scenarios and do not mean that every account has the same entrance. Model, platform, solution and workspace management settings will affect the actual available functions.

Products that also emphasize multi-step delivery can also be extended and compared. Meta Muse functions and usage。

Is ChatGPT free? Free, Go, Plus, Pro Price Comparison

ChatGPT has a free plan and paid plans for individuals and organizations. The following refers to OpenAI’s official ChatGPT Learn price document, the check date is 2026/10/29; this page specifically explains the plan benefits of Work and Codex, and all its model rules cannot be directly applied to Chat.

How to evaluate the official US dollar price of the plan? FreeUS$0/month. Try it first and confirm whether it suits your daily needs. GoUS$8/month. Comparable lower price for light users. PlusUS$20/month. Individual users with fixed needs and want to obtain corresponding functions and usage start at ProUS$100/month. There are also US$200 and US$500 levels based on workload, model and speed requirements. The Pro level is equivalent to Business annual payment. US$20/person/month; monthly payment US$25/person/month requires workspace and basic organizational management, officially designated more than 2 people Enterprise/Edu contact sales or organization management, deployment or education plan required according to organizational arrangements

The above table is the official US dollar reference price, not the tax-included selling price in the Taiwan App Store or all payment channels. Currency, taxes, checkout channels and plan openings should be based on the current screen in the account; annual payment of converted monthly fees does not mean that the same amount can be paid month by month.

Is the free version enough?

If it is mainly for short Q&A, text editing and occasional use, first use the free version to complete a few real tasks, and then observe whether you often encounter quota or function restrictions.

Compare paid plans when you have regular archival work, research or development needs. Don’t just choose the highest price range just because the model name is newer; first see if it can solve the limitations you are experiencing.

Does paying mean unlimited use?

It should not be understood this way. Actual availability will be affected by model, job size, tools, and program rules. The official also stated that Work and Codex share corresponding usage and point arrangements, and the two cannot be regarded as complete and independent quotas.

Checking the account usage and reset time is more accurate than summarizing all work by "how many questions can be asked per month". A long data processing may not necessarily cost the same as a short question and answer.

Are ChatGPT subscription and API fees the same?

Not the same way to use it. Subscriptions are a ChatGPT plan; API processing is per developer account and applicable billing rules. Even if there are specific points or activities, check the applicable scope and do not regard the monthly subscription fee as unlimited API calls.

ChatGPT registration tutorial: five steps for newbies to get started

The following is a compilation of the official entrance and introductory documents, and is not intended to create a new account for readers. The interface and verification process may vary depending on the region, platform and login method.

Step 1: Enter the ChatGPT official website

從 ChatGPT official websiteTo get started, select Register or Login according to the screen. Mobile and desktop apps should also be obtained from the official portal, and the product and publisher should be checked.

Users do not need to apply for an API Key before starting a normal ChatGPT conversation. Don't mistakenly think that just because you have found a developer platform, you must first set up a program and billing project.

Step 2: Complete account and necessary verification

Log in according to the email or third-party account provided on the screen and complete the necessary verification and data confirmation; available options are subject to the current official process.

People who already have an account should first confirm the login method and workspace. There is no need to create a new account just because of changing devices. If the paid benefits do not appear, also check whether you are logged in to another account.

Step 3: Use Chat to complete the first requirement

Start with a small task that's easy to check, like organizing your notes:

Please organize the scattered notes below into a summary in Traditional Chinese. Make a list of three key points first, and then organize your to-do items; do not add names, numbers, or dates that are not provided in the notes.

First confirm whether the output meets the requirements, and then add data or modify it. There is no need to prepare a long "universal spell" for the first time, nor do you need to connect a private account from the beginning.

Step 4: Require file results, then switch to Work

Submit results, materials and acceptance methods at the portal that supports Work. For example, after uploading event information, you are required to create an editable presentation and specify the audience, number of pages, and data that must be retained.

If you want to read connected services such as Drive, Slack, etc., clearly indicate the location of the data and complete the corresponding authorization if necessary. Providing a service name does not mean that ChatGPT can access its content.

Step 5: Review results and save work context

Check sources, figures and files, and direct revisions to specific locations. For example, "Only keep two comparisons on page 3" and "Please keep formulas in the table and do not treat blank spaces as zero."

For long-term work, you can create projects to centrally manage relevant conversations, sources, and instructions. The project is suitable for continuing the context, but it does not mean that it automatically obtains access to all folders in the computer.

How to write ChatGPT instructions? Four elements and five sets of examples

The official OpenAI tips guide recommends explaining goals, context, outputs, and boundaries as needed. It’s not necessary to fill in all four fields every time, but the more complex the matter, the more worthwhile it is to make the important conditions clear.

Example 1: Writing and Revision

Please rewrite the following article into a version suitable for readers who are new to this topic. Use Traditional Chinese, retain all verifiable facts, and remove duplicate sentences. Give me 5 subtitles first, and then complete a draft of about 800 words; any deficiencies in information will be listed as to be filled in, and I will not make up my own.

This is suitable for dealing with the structure first and then revising the text. If there is a reference article, please also indicate that it only refers to the information and reader needs, and does not copy paragraphs or sentences.

Example 2: Search for the latest official information

Please search for the official announcements of this product in the last 30 days, distinguishing the event date and article update date. Changes are organized into three categories: function, price, and usage qualifications, with each item attached to the original source that can be opened directly. Do not write statements that cannot be found as official evidence as definite facts.

It's easier to get a verifiable comparison than just asking "What's the latest news?"

Example 3: Analyzing a Spreadsheet

Please analyze the sales table I uploaded, first check the fields, date ranges, duplicate columns and missing values, and then compare the income of each month. Keep the original data, and make summary tables and charts; explain the calculation method, and do not directly use incomplete months to judge growth or decline.

Data cleaning and baselines can affect conclusions and should be reviewed together with the graphs.

Example 4: Create a work briefing

Please use the attachments to create an 8-page editable presentation that can be read by a non-technical executive. The first two pages describe the problem and recommendations, followed by evidence, costs, and matters to be decided. Use the data in the attachment. Missing information is marked to be filled in. After completion, check whether the text exceeds the page.

If you only need to draft content, you can use Chat first; if you need real files and layout results, then use the supported Work process.

Example 5: Establish regular tracking

Please first sort out the three official announcement pages I designated and establish the current status. After the format is confirmed, changes will be compared at 9 a.m. every Friday in the Asia/Taipei time zone; only content that affects functions, fees, or qualifications will be notified, and no major changes will be notified. After creation, the task name, schedule and notification conditions are listed for me to check.

This is an instruction template, not that this article has created a schedule for readers. If the task requires local files, it is also necessary to confirm whether the use environment must keep the computer and the app running. All schedules cannot be treated as pure cloud work.

What are the memories, projects, and connection tools used for?

Preserve preferences with custom instructions

For example, if you prefer Traditional Chinese, give conclusions before answering, or use specific terminology in articles, you can save them in the supported custom instructions or personalized settings.

Preferences should be kept separate from facts. The writing style can be used for a long time, and changing information such as price, date, latest version, etc. should still be reconfirmed.

Use projects to organize the same long-term work

Projects can group related chats, files, sources and instructions, and are suitable for article series, research reports or the same work project. Breaking each clear outcome into separate conversations helps keep requirements clear.

If you use external documents as authoritative information, you still need to clearly indicate which version should be read to avoid assuming that the content of old conversations is the latest state.

Connect tools when external data is needed

Plugins provide integration services, reusable methods and operational tools. Installation, connecting accounts, data reading and writing permissions are different steps.

For example, querying a certain form and modifying a form, or drafting an email and actually sending an email should be confirmed separately. After connecting to the tool, not all requirements are guaranteed to be completed, and are still subject to service functions and account permissions.

ChatGPT latest news and important updates

2026/11/10｜Advanced and Standard Voice will retire on December 11

OpenAI announced that ChatGPT’s Advanced Voice and Standard Voice will be retired on December 11, 2026, and voice users will switch to GPT-Live by default. The original voice mode will still be available during the transition period; starting December 11, Advanced or Standard will no longer be available in the Voice menu in Settings. Existing voice conversation records will still be retained, and conversations can be continued via text or voice.

Real-time video and screen sharing are currently still supported by Advanced Voice until GPT-Live provides corresponding functions, so this adjustment cannot be understood as a cessation of video and screen sharing.

Official source:ChatGPT update history｜Voice mode exit instructions

2026/11/04｜ChatGPT Images 2.6 launched, GIF production opened in batches

OpenAI launches Images 2.6, making it easier for users to retain character appearance, product details, and brand elements when modifying existing images. ChatGPT's GIF creation function is being rolled out in batches, for example, uploaded character sketches can be made into loop animations. The SVG export announced on the same day is an API update.

Official source |OpenAI Images 2.6 Announcement · ChatGPT update history

Further reading:OpenAI launches Images 2.6: 50% faster generation, supports GIF, and adds SVG export to the API

2026/10/30: iOS and Android gradually support account switching

OpenAI has begun to gradually launch account switching in ChatGPT’s iOS and Android Apps. You can log in to up to two accounts at the same time, and then switch from Settings → Switch account. Chats, memories, settings, and subscriptions for each account are kept separately; switching will not merge accounts or transfer subscriptions. During the phased rollout, not every user will see the portal immediately.

2026/10/29: Some Pro plans increase Work and Codex usage

OpenAI 在 2026 年 10 月 29 日的 ChatGPT 更新紀錄中宣布，Pro 100 與 Pro 500 方案內含的 Work／Codex 用量提高為原先的兩倍。

Pro 200 方面，先前預告的降低額度安排取消；原本享有較高額度的訂戶保留現有額度，原本額度較低的訂戶則提高至相同上限。

這次變動針對指定 Pro 方案的 Work／Codex 用量，不能解讀為所有 ChatGPT 模型的聊天額度都翻倍，也不代表 API 額度或計價同步調整。

2026/10/26：GPT-6.1 Terra 開放至 Work 與 Codex

官方更新說明，GPT-6.1 Terra 已提供給 Plus、Pro、Business、Enterprise 與 Edu 方案中的相應 Work／Codex 入口，重點包括圖片理解、視覺推理與精確的電腦操作。

這次開放不包含 Chat；企業工作區還受管理員設定影響。因此，若在一般聊天選單沒有看到 Terra，不能直接判斷訂閱失效。

2026/09/29：GPT-6.1 Sol 導入 Work 與 Codex

官方文件介紹 GPT-6.1 Sol 適合需要兼顧能力、時間與成本的複雜工作；可用性仍依方案、客戶端與工作區而異。

本文只列已核對的產品進展，不將 Work／Codex 的模型清單說成所有 ChatGPT 對話的統一預設。後續新模型、方案及工具變更，應同時更新受影響的教學與比較表。

ChatGPT、Grok 與 Muse，怎麼比較？

比較 AI 工具時，可以用同一份任務、相同來源與相同完成條件測試，而不是只看品牌或模型名稱。

比較方向實際檢查方式回答與寫作品質是否理解需求、保留事實、容易修改搜尋與引用引用能否開啟、資料是否新、來源是否支持結論檔案交付檔案能否下載、開啟與編輯工具操作是否支援自己使用的服務與權限需求長期工作能否查看排程、活動紀錄與修改方向成本功能是否包含在方案內，額外用量如何處理

ChatGPT 可依 Chat、Work、Codex 選擇工作方式；其他產品的介面與方案另有設計。想看具體產品，可以閱讀 Grok 介紹與註冊使用教學，或了解 Grok Bot 的 AI Agent 工作流程。

以上是選擇工具的比較方式，不是本站完成統一測試後的排名，也不代表其中任何產品在所有任務都更好。

如果也想比較開放權重模型與 API 串接，可以了解 DeepSeek 的官方對話服務、開發者計費及資料處理方式，再以相同任務測試。

延伸閱讀：

使用 ChatGPT 有哪些限制與資料設定要注意？

回答可能出錯，尤其涉及來源缺失、最新規則、數字或複雜推論時。要求它列出根據，再核對關鍵資料，比只看回答是否流暢更有用。

資料管理應區分聊天與檔案、個人化記憶、連接服務及模型改善等設定。官方 Work 瀏覽器文件指出，相關資訊依使用者選擇的 ChatGPT 資料控制設定處理；可在網頁或手機版的 Settings → Data controls 查看。

設定名稱與效果以目前官方說明及工作區政策為準。關閉某一項設定，不等於所有資料都不再保存；刪除某段對話，也不能直接假設其他檔案、記憶與第三方副本同時消失。

對外寄送、發布或修改資料前，確認具體內容與目的地。若需要分享工作成果，也先核對可見對象與分享範圍，避免把內部資料放入公開連結。

ChatGPT 常見問題 FAQ

ChatGPT 一定要付費嗎？

不一定。有免費方案，可以先測試日常需求；需要更多用量或特定功能時，再比較付費方案。

ChatGPT 可以使用繁體中文嗎？

可以直接用繁體中文提出需求，也可以在每次指令或支援的個人化設定中說明語言偏好。正式文章仍建議核對用詞與格式。

註冊 ChatGPT 需要 API Key 嗎？

一般使用者從 ChatGPT 網頁或 App 開始，不需要先申請 API Key。API 是程式串接的另一種使用方式。

ChatGPT Plus 和 Pro 差在哪？

價格、用量、模型與速度等權益不同；Pro 也有不同級距。依實際工作量與帳號內方案比較，不宜只用一個固定問答次數概括。

為什麼別人的功能，我的帳號沒有？

可能與方案、推出進度、平台、模型或工作區設定有關。先核對目前所在的 Chat、Work 或 Codex，以及官方開放說明。

ChatGPT 每次回答都有搜尋網路嗎？

不能這樣假設。需要近期資訊時明確要求搜尋與來源，並檢查回覆是否實際附上可核對的資料。

Chat 和 Work 有什麼不同？

Chat 適合問答與來回討論；Work 適合交辦研究、檔案分析與需要完整成果的工作。可用工具與額度依帳號而異。

ChatGPT 可以建立自動任務嗎？

支援的帳號與環境可以安排排程。建立後應查看 Scheduled 或相應管理介面的實際狀態，而不是只靠普通對話承諾。

訂閱 Plus 就能免費無限使用 API 嗎？

不能這樣理解。ChatGPT 訂閱與 API 計費及額度需分別核對，特定活動或點數也有各自適用範圍。

ChatGPT 產出的來源與數字需要再確認嗎？

需要。重要結論應對照原始資料，特別是價格、法規、交易條件、統計數字與事件日期。

官方資料來源

*本文由桑幣區識編輯團隊依據官方資料及公開資訊整理，內容僅供資訊與教育用途，不構成投資建議。

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