{"id":216930,"date":"2026-10-31T09:00:00","date_gmt":"2026-10-31T09:00:00","guid":{"rendered":"https:\/\/theunitysoft.com\/blog\/which-ai-assistant-for-which-office-task\/"},"modified":"2026-10-31T09:00:00","modified_gmt":"2026-10-31T09:00:00","slug":"which-ai-assistant-for-which-office-task","status":"publish","type":"post","link":"https:\/\/theunitysoft.com\/nl\/blog\/which-ai-assistant-for-which-office-task\/","title":{"rendered":"Which AI Assistant for Which Office Task? A Practical Guide"},"content":{"rendered":"<p>No single assistant wins every task. What differs most is where each one lives: inside Microsoft&#8217;s Office apps, inside Google&#8217;s apps, or in a separate chat and desktop app. Test two or three candidates on your own documents for ten minutes, and check any numbers, names and quotations before they leave your desk.<\/p>\n<h2>Key takeaways<\/h2>\n<ul>\n<li>There is no single winner. The biggest practical difference is where each assistant sits in your working day.<\/li>\n<li>Test with your own documents. A ten-minute trial on three real tasks tells you more than any ranking.<\/li>\n<li>Google&#8217;s autumn focus is voice, Microsoft&#8217;s is working inside Office files, and OpenAI and Anthropic both offer separate apps plus integrations or add-ins.<\/li>\n<li>Whatever you use, check numbers, names and quotations before they leave your desk.<\/li>\n<li>Our suggestions are editorial judgement based on each company&#8217;s own descriptions, not independent test results.<\/li>\n<\/ul>\n<h2>How should you read this guide?<\/h2>\n<p>Every company describes its own product as the best at something. We cannot test all of them in every situation, and independent testing lags behind launches. So we do two things: report what each vendor documents, with a source, and then suggest where that fits common office tasks, clearly marked as our reading.<\/p>\n<h2>What does each assistant offer?<\/h2>\n<table>\n<thead>\n<tr>\n<th>Assistant<\/th>\n<th>Where it lives<\/th>\n<th>What the vendor documents<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>ChatGPT (OpenAI)<\/td>\n<td>Separate desktop app and web<\/td>\n<td>GPT-6 Astra launched on 3 September. The desktop app combines Chat, Work and Codex, and Astra use is included in existing subscription allowances, with credits for extra use (9to5Mac).<\/td>\n<\/tr>\n<tr>\n<td>Claude (Anthropic)<\/td>\n<td>Separate app, plus add-ins for Excel and PowerPoint<\/td>\n<td>Opus 5.5 (22 September), Sonnet 5.5 (28 September) and Haiku 5.5 (7 October) are listed on Anthropic&#8217;s news page. The add-ins read cells, write formulas, merge datasets, edit slides and share context between open files.<\/td>\n<\/tr>\n<tr>\n<td>Gemini (Google)<\/td>\n<td>Google apps and a separate app<\/td>\n<td>Gemini 3.8 Live supports 97 languages and can switch mid-conversation. The Extended Thinking version powers Docs Live, Gmail Live and Keep Live for eligible subscribers.<\/td>\n<\/tr>\n<tr>\n<td>Copilot (Microsoft)<\/td>\n<td>Inside Word, Excel, PowerPoint and Outlook, and a new Copilot app<\/td>\n<td>Microsoft says Word, Excel and PowerPoint functionality is available inside the Copilot app, files are saved to OneDrive with formatting, comments and version history, and you can pick a model or leave it on Auto. Availability is staged, starting with its Frontier early-access customers.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>OpenAI describes Astra as strong at computer use, browsing, professional work and software engineering. Anthropic&#8217;s add-ins are in beta for paid Claude plans on Mac and Windows. For the Microsoft side in more detail, see <a href=\"\/nl\/blog\/ai-in-windows-and-office-2026\/\">AI in Windows and Office<\/a>.<\/p>\n<h2>Which assistant suits which everyday job?<\/h2>\n<h3>1. Summarising a long email thread or report<\/h3>\n<p>Any of the four can do this. The practical difference is where the text lives. If the thread is in Outlook, Copilot&#8217;s Outlook panel is closest to hand. If it is in Gmail, Google&#8217;s Gmail integration is. If it is a PDF or pasted text, a separate chat app works equally well. Ask for the decisions and the open questions, not just &#8220;a summary&#8221;.<\/p>\n<h3>2. Cleaning up a spreadsheet<\/h3>\n<p>This is where a tool that sits inside Excel earns its place, because it can see the cells. Microsoft&#8217;s Copilot and Anthropic&#8217;s Excel add-in are both designed for this. Whichever you use, spot-check totals against the original and keep a copy of the file before you let any assistant edit it.<\/p>\n<h3>3. Drafting a letter or proposal<\/h3>\n<p>All four can produce a competent first draft. Differences are mostly about style and how well each follows your instructions, which is a matter of taste. Paste a paragraph you have written before and ask the assistant to match its tone; it is the most effective single trick we know.<\/p>\n<h3>4. A question while you are out and about<\/h3>\n<p>Voice is where Google is putting emphasis this autumn. Gemini Live is built for spoken, back-and-forth conversation, and Google says it handles 97 languages. We have not looked into the voice features of ChatGPT, Claude or Copilot and make no claim about them either way.<\/p>\n<h3>5. Building a presentation from notes<\/h3>\n<p>Microsoft says Copilot can keep a PowerPoint deck on-brand and apply custom templates. Anthropic&#8217;s PowerPoint add-in can edit slides and take information from an Excel file you have open. Both are reasonable starting points; expect to adjust layout by hand.<\/p>\n<h3>6. Working with code or automation<\/h3>\n<p>If you write macros or small scripts, OpenAI&#8217;s Codex (part of the ChatGPT desktop app) and Anthropic&#8217;s Claude models are both marketed strongly for software work, and Microsoft&#8217;s Copilot app has a Code area for building small apps from a description. This is a specialised use, so if it matters to you, try each on a real task.<\/p>\n<h2>How do you run a fair ten-minute test?<\/h2>\n<ol>\n<li>Choose three tasks from your own week: one writing, one data, one summarising.<\/li>\n<li>Give every assistant the same instructions, and the same files if your plan allows uploads.<\/li>\n<li>Mark each answer for accuracy first, style second and time saved third.<\/li>\n<li>Note what you had to fix. The assistant that needs the least correction on your tasks is your answer for now.<\/li>\n<li>Repeat in three months; the products are changing quickly.<\/li>\n<\/ol>\n<h2>What rules apply to all of them?<\/h2>\n<p><strong>Protect confidential data.<\/strong> Business and personal plans handle files differently. If a document would be a problem if it leaked, check your organisation&#8217;s policy before uploading it.<\/p>\n<p><strong>Verify anything checkable.<\/strong> The International AI Safety Report, published in February 2026, says current systems still produce false information and are less dependable on multi-step projects, and that no current method eliminates failures entirely (as summarised by the law firm Covington). Our piece on <a href=\"\/nl\/blog\/agi-superintelligence-claims-vs-evidence\/\">AGI claims and the evidence<\/a> looks at the wider debate.<\/p>\n<p><strong>Keep a person responsible.<\/strong> The assistant drafts; you sign off.<\/p>\n<h2>Does your Office licence affect the choice?<\/h2>\n<p>Your assistant and your Office licence are separate decisions. According to Office Watch, paid Copilot plans cannot be linked to Office 2024 apps, while free Copilot services can be used alongside them, and a separate assistant in a browser window works next to any Office version. If you want a one-time licence, see our <a href=\"\/nl\/product-categorie\/microsoft-office\/\">Office licences<\/a>; for a broader look at the field, read <a href=\"\/nl\/blog\/ai-in-late-2026-overview\/\">where AI stands at the end of 2026<\/a>.<\/p>\n<h2>Veelgestelde vragen<\/h2>\n<h3>Which assistant is the most accurate?<\/h3>\n<p>We cannot give a reliable answer. Accuracy depends on the task, and most published comparisons come from the vendors themselves. Test with your own material.<\/p>\n<h3>Can I use more than one?<\/h3>\n<p>Yes, and many people do. Keep sensitive documents to the assistant your organisation has approved.<\/p>\n<h3>Do I need to pay?<\/h3>\n<p>Features vary by plan and change often. Several of the Office integrations described above are limited to paid plans or early-access programmes, so check the current plan page of the provider.<\/p>\n<h3>Will the best tool change next month?<\/h3>\n<p>Possibly. All four companies have shipped significant updates since September, which is why a short, repeatable test is more useful than a ranking.<\/p>\n<h2>Bronnen<\/h2>\n<ol>\n<li><a href=\"https:\/\/9to5mac.com\/2026\/09\/03\/openai-releasing-major-upgrade-to-chatgpt-and-codex-with-gpt-6-astra-details-here\/\" rel=\"nofollow noopener\" target=\"_blank\">OpenAI releasing major upgrade to ChatGPT and Codex with GPT-6 Astra<\/a> (9to5Mac, 4 September 2026). Accessed 31 October 2026.<\/li>\n<li><a href=\"https:\/\/foxbusiness.com\/technology\/openai-unveils-gpt-6-astra-major-advances-ai-capabilities\" rel=\"nofollow noopener\" target=\"_blank\">OpenAI unveils GPT-6 Astra<\/a> (Fox Business, 3 September 2026). Accessed 31 October 2026.<\/li>\n<li><a href=\"https:\/\/www.anthropic.com\/news\" rel=\"nofollow noopener\" target=\"_blank\">Anthropic news listing (release dates)<\/a> (Anthropic). Accessed 31 October 2026.<\/li>\n<li><a href=\"https:\/\/claude.com\/ja\/resources\/articles\/claude-excel-powerpoint-updates\" rel=\"nofollow noopener\" target=\"_blank\">Advancing Claude for Excel and PowerPoint<\/a> (Anthropic \/ Claude, 11 March 2026). Accessed 31 October 2026.<\/li>\n<li><a href=\"https:\/\/blog.google\/innovation-and-ai\/models-and-research\/gemini-models\/gemini-3-8-live-gemini-3-8-live-extended-thinking\/\" rel=\"nofollow noopener\" target=\"_blank\">Introducing Gemini 3.8 Live and 3.8 Live Extended Thinking<\/a> (Google, 15 September 2026). Accessed 31 October 2026.<\/li>\n<li><a href=\"https:\/\/blogs.windows.com\/japan\/2026\/10\/14\/introducing-office-in-the-new-microsoft-copilot-app-4561230\/\" rel=\"nofollow noopener\" target=\"_blank\">Introducing Office in the new Microsoft Copilot app<\/a> (Microsoft Windows blog, 9 October 2026 (Japanese edition, 14 October 2026)). Accessed 31 October 2026.<\/li>\n<li><a href=\"https:\/\/www.techeconomy.ng\/microsoft-copilot-code-autopilot-office-apps\" rel=\"nofollow noopener\" target=\"_blank\">Microsoft Copilot, Code, Autopilot and Office apps<\/a> (Techeconomy, 25 September 2026). Accessed 31 October 2026.<\/li>\n<li><a href=\"https:\/\/office-watch.com\/2026\/office-2024-windows-mac\/\" rel=\"nofollow noopener\" target=\"_blank\">Office 2024 for Windows and Mac<\/a> (Office Watch, 9 January 2026). Accessed 31 October 2026.<\/li>\n<li><a href=\"https:\/\/www.insideprivacy.com\/artificial-intelligence\/international-ai-safety-report-2026-examines-ai-capabilities-risks-and-safeguards\/\" rel=\"nofollow noopener\" target=\"_blank\">International AI Safety Report 2026 examines AI capabilities, risks and safeguards<\/a> (Inside Privacy (Covington), 12 February 2026). Accessed 31 October 2026.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>Claude, ChatGPT, Gemini and Copilot each have a different home. A task-by-task guide to choosing one for everyday office work, with a ten-minute test of your own.<\/p>","protected":false},"author":2,"featured_media":216929,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[110],"tags":[],"class_list":["post-216930","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-microsoft-ai"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Which AI Assistant for Which Office Task? | TheUnitySoft<\/title>\n<meta name=\"description\" content=\"A task-by-task guide to using Claude, ChatGPT, Gemini and Copilot in everyday office work, with documented strengths and a simple test of your own.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/theunitysoft.com\/nl\/blog\/which-ai-assistant-for-which-office-task\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which AI Assistant for Which Office Task? | TheUnitySoft\" \/>\n<meta property=\"og:description\" content=\"A task-by-task guide to using Claude, ChatGPT, Gemini and Copilot in everyday office work, with documented strengths and a simple test of your own.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/theunitysoft.com\/nl\/blog\/which-ai-assistant-for-which-office-task\/\" \/>\n<meta property=\"og:site_name\" content=\"TheUnitySoft\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-31T09:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/theunitysoft.com\/wp-content\/uploads\/2026\/11\/which-ai-assistant-for-which-office-task.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1600\" \/>\n\t<meta property=\"og:image:height\" content=\"895\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"crone\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Geschreven door\" \/>\n\t<meta name=\"twitter:data1\" content=\"crone\" \/>\n\t<meta name=\"twitter:label2\" content=\"Geschatte leestijd\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/theunitysoft.com\\\/blog\\\/which-ai-assistant-for-which-office-task\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/theunitysoft.com\\\/blog\\\/which-ai-assistant-for-which-office-task\\\/\"},\"author\":{\"name\":\"crone\",\"@id\":\"https:\\\/\\\/theunitysoft.com\\\/#\\\/schema\\\/person\\\/269cdfd12e371bbf87fd17881e746799\"},\"headline\":\"Which AI Assistant for Which Office Task? 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