ChatGPT vs Copilot (2026): GPT-6, Price and Which Wins

ChatGPT vs Copilot is one of the most common questions people ask once AI becomes part of their working day. Both can write, summarize, research and create images, and both now use OpenAI models in some form. Yet they are built for different jobs. ChatGPT is a standalone assistant that tries to do everything in one window. Microsoft Copilot is an assistant woven into Windows, Edge and the Microsoft 365 apps you may already pay for.

This guide compares the two on plans, GPT models (including whether GPT-6 is in Copilot), work vs personal use, privacy and price. Prices and model details were rechecked on November 7, 2026 against ChatGPT's pricing page, OpenAI's help articles on ChatGPT Plus and Pro tiers, Microsoft's Copilot plans for individuals, the Microsoft 365 plan comparison and Microsoft 365 Copilot business pricing. Plans change often, so confirm on those pages before you pay.

If you are also comparing other assistants, see Grok vs ChatGPT, Gemini vs ChatGPT, ChatGPT vs Claude and Claude vs Copilot.

Quick answer: ChatGPT or Copilot?

Pick ChatGPT if you want one flexible assistant for research, writing, custom GPTs and coding (Free, Go at $8 in the US, or Plus at $20 a month). Even the free plan includes GPT-6.

Pick Microsoft Copilot if your day runs on Word, Excel, Outlook and Teams (free Copilot app, or Microsoft 365 Personal from $9.99 a month). Inside Microsoft 365 Copilot for work, GPT-6 models appear in the model picker.

Use both if you already live in Office and still need open-ended research, deep projects or Codex-style coding outside those apps. Many people keep Copilot for inbox and spreadsheets and ChatGPT for everything else.

GPT-6 in Copilot? Yes in Microsoft 365 Copilot (work) and GitHub Copilot, with caveats. Microsoft still lists GPT-5 for Smart mode in the free consumer Copilot app. Details below.

First, which "Copilot" are we talking about?

Microsoft uses the Copilot name for several products, which causes a lot of confusion:

• Microsoft Copilot (consumer): the free chat app on the web, Windows, iOS and Android, with more usage unlocked by Microsoft 365 Personal, Family, Premium or Pro.
• Microsoft 365 Copilot (business): Copilot inside Word, Excel, PowerPoint, Outlook and Teams, grounded in your organization's emails, files and meetings.
• GitHub Copilot: a separate coding assistant for developers that lives in code editors. It is not the focus of this comparison. For coding tools, see our Copilot alternatives and Cursor alternatives roundups.

When this post says "Copilot", it means the first two unless we name GitHub Copilot.

Is GPT-6 in Copilot? Which GPT model Copilot uses

Yes, with caveats. Which GPT model you get depends on which Copilot you use. Here is what Microsoft, GitHub and OpenAI have published as of early November 2026:

• Microsoft 365 Copilot (work): GPT-6 Astra arrived on September 4, 2026 in Copilot Cowork and Copilot Studio, according to Microsoft's announcement. Later that month Microsoft said GPT-6 Sol had joined model choice, and it started rolling out GPT-6.1 Sol plus Anthropic models in Cowork, Copilot Studio, Word, Excel, PowerPoint and Chat for licensed users. Microsoft's Message Center notice MC1519122 (updated November 4, 2026) says usage-based billing (UBB) models including GPT-6 Astra roll out to Copilot Chat, Word, Excel and PowerPoint: Frontier from early to mid-November 2026, and general availability worldwide from early to mid-December 2026. You need a Microsoft 365 Copilot license, and your admin has to turn on usage-based billing and assign Copilot Credits.
• Microsoft Copilot (free consumer app): Microsoft's conversation modes help page still says Smart mode uses GPT-5. An editor's note on Microsoft's GPT-5 in Copilot page says models have been upgraded since, but does not name GPT-6 for the free app. Treat consumer Smart mode as GPT-5-class unless Microsoft updates that help page.
• GitHub Copilot (coding): GitHub's supported models list includes GPT-6 Astra, GPT-6 Sol, GPT-6 Luna, GPT-6.1 Sol and GPT-6.1 Terra. On GitHub's plans page, GPT-6 Luna and GPT-6.1 Terra come with Pro ($10 a month). GPT-6 Astra, GPT-6 Sol and GPT-6.1 Sol need Pro+ ($39), Max ($100), Business or Enterprise.
• ChatGPT: OpenAI's pricing page lists GPT-6 family models across plans. Free includes GPT-6 access with lower limits. Plus adds advanced GPT-6 reasoning. Pro adds Pro reasoning powered by GPT-6 Astra, and Pro 500 adds Ultrafast for GPT-6 Astra and GPT-6.1 Sol, according to OpenAI's Pro tiers article.

So if your goal is simply to use GPT-6 today with the least setup, the free ChatGPT plan is the easiest path. Inside Microsoft 365, GPT-6 models appear in the model picker when your license, region and admin settings allow it. Auto is still the right default for most everyday Office tasks; pick Astra or another heavyweight model when you are handing off a larger piece of work and your tenant has credits enabled.

ChatGPT vs Copilot at a glance

ChatGPT pricing in 2026

OpenAI's main pricing page lists plan features clearly but often hides dollar amounts in a plain-text fetch, so these US prices come from OpenAI's help articles and product posts (rechecked November 7, 2026):

According to OpenAI:

• Plus is $20 a month, billed monthly, with no annual option for individuals.
• Pro offers three monthly tiers. Ultrafast for GPT-6 Astra and GPT-6.1 Sol is included on Pro 500 only.
• Go launched at $8 a month in the US; local prices apply in some countries. OpenAI has said ads may be tested on Free and Go.
• Plus, Pro, Business and Enterprise stay ad-free.

If you plan to build on OpenAI's models through the API rather than the chat app, our AI token calculator estimates what each request will cost.

Microsoft Copilot and Microsoft 365 pricing

Consumer Copilot usage rises with a Microsoft 365 subscription. Microsoft's individual plans page and plan comparison (November 2026) list:

For companies, Microsoft's Copilot business pricing lists:

• Microsoft 365 Business Standard with Copilot: $23.50 per user per month, paid yearly.
• Microsoft 365 Business Premium with Copilot: $32.00 per user per month, paid yearly.
• Microsoft 365 Copilot Business (add-on): promotional $18 per user per month (normally $21), paid yearly — first-year promo through December 31, 2026 on Microsoft's pricing table; expect the regular price at renewal.

Everyday AI (chat and Copilot in apps) is included with the license. Advanced experiences such as Cowork, Autopilot and the Work IQ API are usage-based and burn Copilot Credits on top of the seat fee. Microsoft's business table still labels the default OpenAI line as "Latest OpenAI models: GPT-5.X" with model choice — GPT-6 family models sit in that model-choice / UBB path described above.

Price comparison: what you get at each budget

• Free: ChatGPT Free includes GPT-6 with limits. The Microsoft Copilot app is free with its own limits and still documents Smart mode as GPT-5. If "use GPT-6" is your only goal, start with ChatGPT Free.
• Around $8–10/month: ChatGPT Go ($8 US) raises chat limits. Microsoft 365 Personal ($9.99, or $99.99/year) unlocks Copilot inside desktop Office apps plus 1 TB of storage — better value if you needed Office anyway.
• Around $20/month: ChatGPT Plus ($20) is the stronger all-round paid assistant (projects, custom GPTs, deep research, Codex). Microsoft 365 Premium ($19.99) is the closer Copilot match when you want extensive AI usage inside Microsoft's apps.
• Business seats: Microsoft 365 with Copilot starts at $23.50/user/month (yearly) with Work IQ grounding. ChatGPT Business is priced per seat from 2 users and fits teams that are not standardized on Microsoft 365.

What ChatGPT does best

ChatGPT is a general assistant first. Paid plans add more room for the same core jobs:

• Go expands messages, uploads, image creation and memory.
• Plus adds advanced reasoning models, projects, scheduled tasks, custom GPTs, more deep research and expanded Codex usage.
• Pro offers a choice of three usage tiers, Pro reasoning with GPT-6 Astra, longer Codex and ChatGPT Work sessions, Dot (always-on agent on Pro), and monthly API credits on eligible accounts.

Typical use cases where ChatGPT shines:

• Drafting a blog post, then turning it into a social thread and an email in the same chat.
• Running deep research on a market or competitor and getting a cited report.
• Writing and debugging code with Codex.
• Building a custom GPT for a repeat task such as proposal writing.

What Microsoft Copilot does best

Copilot's strength is where it lives. Microsoft 365 Personal includes Word, Excel, PowerPoint and Outlook desktop apps with Copilot, 1 TB of storage and higher Copilot usage than free. Family adds up to six people and 2 TB of shared storage, although Copilot AI features are for the subscription owner only. Premium and Pro raise usage further and unlock exclusive Copilot features such as Researcher, Analyst and Cowork-class agentic work.

Typical use cases where Copilot shines:

• Summarizing a long Outlook thread and drafting a reply in your inbox.
• Asking Excel to clean up a table, suggest a formula or build a chart.
• Turning a Word document into a PowerPoint draft.
• Getting a recap and action items after a Teams meeting.

Microsoft 365 Copilot for business

For companies already on Microsoft 365, Copilot grounded in Work IQ is the main reason to pay for a seat rather than a separate chatbot. Prompts and responses in Microsoft 365 Copilot stay within the Microsoft 365 service boundary and are not used to train the underlying models, according to Microsoft's business pricing FAQ. Some advanced features remain metered, so admins should set Copilot Credit policies before rolling out Astra-class models.

ChatGPT vs Copilot for work: key differences

Integration

Copilot wins if your documents, email and meetings are already in Microsoft 365. It can reference your files and calendar without copying and pasting. ChatGPT offers extensions for Excel, Word, PowerPoint and Google Sheets, but it remains a separate destination. If you want either assistant to trigger actions in other apps automatically, a workflow tool does that job; see our n8n vs Zapier comparison.

Flexibility and depth

ChatGPT wins for open-ended work. Custom GPTs, projects, Codex, deep research and a large plugin ecosystem make it more flexible as a do-everything assistant. For editor-native coding, compare GitHub Copilot with the tools in our Cursor pricing 2026 and Cursor vs Claude Code vs Codex guides.

Privacy and admin controls

Both offer business-grade controls. Microsoft says prompts and responses in Microsoft 365 Copilot stay within the Microsoft 365 service boundary, support GDPR and related commitments, and are not used to train the underlying models. OpenAI says ChatGPT data is encrypted in transit and at rest, and offers Business and Enterprise plans with admin controls; individuals can opt out of training via data controls. For personal free chat on either side, assume more data may be used to improve products unless you are on a business plan or have opted out where that control exists.

Is Copilot just ChatGPT?

Not exactly. The two share OpenAI model roots, and Microsoft 365 Copilot now offers GPT-6 family models plus Anthropic options through model choice. But Copilot wraps those models in Microsoft's interface, Work IQ grounding and app features, so answers and capabilities differ even when the underlying model name matches.

Example: the same task in each tool

Say you need to prepare a client update from last week's emails and a sales spreadsheet.

• In Copilot, you could ask Outlook to summarize the thread, ask Excel's Copilot for the key trends, then ask Word to draft the update, all inside your existing files.
• In ChatGPT, you would upload the spreadsheet and paste or connect the emails, then ask for a summary and draft. You get more control over tone and structure, but more manual setup.

When to use both ChatGPT and Copilot

You do not have to pick only one:

• Use Copilot for anything already sitting in Outlook, Word, Excel, PowerPoint or Teams.
• Use ChatGPT for open-ended research, long writing projects, custom GPTs and Codex sessions.
• Keep GitHub Copilot (or Cursor) in the editor if coding is your main job — consumer Microsoft Copilot is not a coding IDE tool.

Paying for ChatGPT Plus plus Microsoft 365 Personal is common when Office is non-negotiable and you still want ChatGPT's project and research features. Start with both free tiers for a week before stacking paid plans.

Not sure a chat assistant is the right tool at all? Our ChatGPT alternatives guide maps Claude, Gemini, Grok, Perplexity and the rest by job, and sends coding work to the right tools.

FAQ

Verdict: ChatGPT vs Copilot, who should pick which

• Students and casual users: start with the free ChatGPT plan, which includes GPT-6.
• Office-heavy professionals: choose Microsoft Copilot through a Microsoft 365 plan if you spend your day in Outlook, Word and Excel.
• Writers, marketers and researchers: pick ChatGPT Plus for deep research, projects and custom GPTs.
• Developers: use ChatGPT with Codex for general coding help, and look at GitHub Copilot or the tools in our Cursor alternatives guide for in-editor work.
• Businesses on Microsoft 365: Microsoft 365 Business Standard or Premium with Copilot gives you AI grounded in your company data.
• Businesses outside Microsoft's ecosystem: ChatGPT Business is the simpler choice.

Not sure which setup fits your workflow? Get in touch and tell me what you're working on. If a price or model label on this page looks out of date after a vendor change, say so and I will recheck the official sources.