Last updated 3 July 2026 with Claude Fable 5 and Sonnet 5, the GPT-5.6 preview, Copilot Cowork general availability, and refreshed pricing across all three platforms.
Every business we talk to is asking the same question: which AI tool should we actually be using? The honest answer keeps changing, and June 2026 changed it again. Anthropic shipped two new models in three weeks, one of which was briefly pulled offline by the US government. OpenAI announced its next generation and then could not release it to the public. And Microsoft made its agentic Copilot Cowork generally available while quietly putting Claude in the Copilot Chat model picker. We deploy all three platforms across Australian businesses every day, including inside our own operations. Here is what we have learned, updated for the post-June reality.
If you want the backstory on why we chose Claude as our primary platform despite being a Microsoft Partner, read that decision in detail here. If you are already using Copilot and wondering whether it is enough, we wrote about that gap too. This post is the full ChatGPT vs Copilot vs Claude comparison for business, current as of July 2026.
If your business runs on Microsoft 365, start with Copilot, then turn on Anthropic models in the admin centre so your team can pick Claude inside the same surface for deep work. If you need a standalone AI for analytical work, long documents, compliance, or coding without the Microsoft licence overhead, Claude on its own is still the stronger tool, and it now ships the most capable publicly available model on the market. If you want the most flexible general-purpose AI for staff who do not live in Microsoft 365, ChatGPT Business is the safe default. Most businesses with 20 or more staff will end up using at least two of these.
| Microsoft Copilot | Claude | ChatGPT | |
|---|---|---|---|
| Built by | Microsoft (uses OpenAI and Anthropic models) | Anthropic | OpenAI |
| Best for | M365 workflow, in-app AI | Deep work, compliance, long documents, coding | Versatile general-purpose tasks |
| Requires M365 | Yes, Business Standard or E3+ | No | No |
| Latest flagship model | GPT-5.5 (default) plus Claude Opus models (opt-in) | Claude Fable 5 (paid plans), Sonnet 5 default | GPT-5.5 (GPT-5.6 in limited preview) |
| Context window | Varies by surface | 1,000,000 tokens (~2,500 pages) | 128k on Plus, 1M on Pro $200 |
| Business pricing (USD) | $21/user (SMB, $18 promo to Dec 2026) or $30/user (Enterprise) | $20/seat annual, $25 monthly (Team) | $20/seat annual, $25 monthly (Business) |
| Trains on your data? | No (stays in your M365 tenant) | No (on all paid plans) | No (Business and Enterprise only) |
| Agentic work | Copilot Cowork (GA, credit-billed) | Claude Cowork (GA on paid plans) | Agent Mode (capped on Business) |
| Email and calendar integration | Yes, native | Via Claude in Chrome and connectors | Via apps and connectors |
| Coding | Solid in GitHub Copilot, basic in M365 apps | Strongest (Claude Code, Fable 5, Opus 4.8) | Very good (Codex) |
| Spreadsheet work | Excel with Copilot (native, Claude selectable) | Claude for Excel | Code interpreter + connectors |
| Epic IT verdict | Best for in-Microsoft workflow | Best for deep work, anywhere | Best for breadth and creative |
The version of this post you may have read in May is already partly out of date. Five things shifted the comparison, and one of them is a genuinely new category of buying risk.
Claude jumped two model generations in six weeks. Claude Opus 4.8 arrived in late May with stronger coding and long-running agentic work. Then on 9 June Anthropic launched Claude Fable 5, the first of a new Mythos-class tier that sits above Opus. It is the most capable publicly available AI model on the market, with a 1,000,000-token context window and the biggest gains showing up on long, complex tasks. It ships with safety classifiers that route a small number of high-risk queries to Opus 4.8 instead. Fable 5 is available to paid Claude subscribers and enterprise customers.
The US government entered the release pipeline. Three days after launch, a US export-control directive forced Anthropic to suspend Fable 5 entirely. Access was restored globally on 1 July after the controls were lifted. OpenAI hit the same wall from the other direction: it previewed its next-generation GPT-5.6 family (Sol, Terra, and Luna) on 26 June, but at the government’s request the release is limited to roughly 20 vetted organisations, with general availability promised in the coming weeks. This follows a 2 June executive order requiring federal assessment of frontier models before wide release. The practical takeaway for buyers: launch-day access to the newest models is no longer guaranteed, so build your AI workflows on tools you can access today rather than announcements.
Sonnet 5 lifted the free and mid tiers. On 30 June Anthropic released Claude Sonnet 5, now the default model on Claude Free and Pro plans. It plans, uses tools like browsers and terminals, and runs autonomously at a level that previously required the largest models. For most day-to-day business tasks, the default model on a $20 Claude plan is now stronger than the flagships of six months ago.
Copilot went agentic. Copilot Cowork, Microsoft’s agentic Copilot that runs longer multi-step tasks across apps in a cloud-hosted environment, reached general availability on 16 June. It is off by default, requires a Microsoft 365 Copilot licence, and bills on consumption through Copilot Credits at $0.01 per credit, so set spending limits before you enable it. Microsoft also unveiled Scout at Build 2026, an always-on desktop agent currently in the Frontier preview. And Claude is now a selectable model in the Copilot Chat model switcher, alongside Researcher, Copilot Studio, and Edit with Copilot in Excel.
The Microsoft 365 price rise is now in effect. The global pricing update we flagged in February took effect on 1 July 2026 across most Business, Enterprise, and Frontline plans. If your renewal passed without a review, the base cost under any Copilot deployment just went up. On the Copilot side, Microsoft is running an $18 per user promotional rate on Copilot Business (normally $21) through December 2026, which partly offsets it for new deployments.
Microsoft Copilot is not a single AI. It is a set of AI surfaces embedded into your existing Microsoft 365 environment, powered by a mix of OpenAI and Anthropic models you can choose between. When you open Outlook, Copilot can summarise a 40-message email thread in two sentences. In Teams, it generates meeting notes from a recorded call. In Excel, it writes formulas from plain-English descriptions, and Edit with Copilot lets you opt for Claude on harder tasks. Its power is integration, not raw intelligence. It reads your SharePoint files, calendar, inbox, and Teams channels, and uses that context without you copying and pasting anything. With Cowork now generally available, it can also run multi-step tasks in the background, billed per credit. Pricing and bundle details are on the official pricing page.
Claude (built by Anthropic) is the tool we chose for our own internal operations and for our managed AI clients. It excels at long-form reasoning, document analysis, compliance work, and code generation. Fable 5 handles up to 1,000,000 tokens of context (around 2,500 pages), which means you can feed it an entire policy document, contract, or codebase and get a coherent response back, and its lead over other models grows as tasks get longer and more complex. Claude’s writing is more precise and less generic than the alternatives, and Anthropic does not train on your business data on any paid plan. Claude Cowork, its agentic desktop workspace, is now generally available on paid plans, and Claude in Chrome is out of beta. Pricing is on the Anthropic pricing page.
ChatGPT (built by OpenAI) is the most widely used AI tool in the world. It is versatile, fast, and has the broadest ecosystem of apps and connectors. It handles creative writing, brainstorming, research, coding (via Codex), image generation, voice, and data analysis well. Business users are currently on GPT-5.5; the GPT-5.6 family exists but sits in a government-supervised preview that ordinary subscribers cannot access yet, so ignore any pressure to wait for it. ChatGPT’s weakness relative to Copilot is that it does not live inside your Microsoft environment by default. Its weakness relative to Claude is that its outputs for long, complex analytical work tend to be less precise. Pricing is on the ChatGPT Business pricing page.
We tested all three across the tasks Australian SMBs actually use AI for. Not benchmarks. Not chatbot arena scores. The tasks that business owners, office managers, and operations staff do every day.
Email and meeting summarisation. Copilot still wins decisively. It reads your inbox and meeting recordings natively. No copying required. Claude and ChatGPT can both summarise emails, but you have to paste content in manually unless you wire up connectors, which breaks the workflow for most staff.
Document drafting and editing. Claude produces the cleanest, most precise written output. We use it for proposals, compliance documents, client reports, and blog content. With Anthropic models enabled in Copilot, you can get Claude’s writing inside Word too, which is the best of both worlds. ChatGPT is a close second for shorter content and brainstorming. Native Copilot drafting on OpenAI models is adequate for internal communications but tends toward generic corporate language.
Data analysis and spreadsheets. Copilot’s Excel integration is genuinely useful for formula writing and basic data manipulation, and Edit with Copilot can now run on Claude for harder tasks. For serious analysis (cleaning messy data, building models, generating charts from complex datasets) ChatGPT with its code interpreter and Claude, either standalone or via Claude for Excel, both outperform default Copilot. Claude handles larger datasets more reliably due to its 1M-token context window.
Compliance and policy work. Claude is the clear leader, and Fable 5 widened the gap. We use it to review Essential Eight assessments, draft AI governance policies, and analyse regulatory documents. Its ability to process long documents without losing context is a real advantage over ChatGPT, which tends to drift on documents longer than 30 pages on Plus. With Claude available inside Copilot Studio, you can also build compliance agents that run inside the Microsoft estate.
Coding and technical work. Claude is the preferred tool for our engineering team, and this is where Fable 5’s lead is largest. Claude Code handles multi-file debugging, refactoring, and long-running autonomous work better than any alternative we have tested. ChatGPT via Codex is a strong second, particularly for one-off scripts and explanations, and GPT-5.6 Sol looks competitive on early coding benchmarks once it actually ships. GitHub Copilot (a separate product from Microsoft 365 Copilot) remains useful for inline code completion and supports Claude models on paid plans.
Creative work and brainstorming. ChatGPT has the edge. It generates ideas faster, handles more creative formats (image generation, voice, video), and has a broader app ecosystem. Claude is good at structured creative work like blog outlines and messaging frameworks, and Claude Design covers first-pass visual creation. Default Copilot is not built for creative tasks.
| Plan (USD) | Microsoft 365 Copilot | Claude | ChatGPT |
|---|---|---|---|
| Individual | Copilot Chat: free with eligible M365 plan | $20/month (Pro), $100/$200 (Max) | $20/month (Plus), $100 or $200 (Pro) |
| SMB / Business | $21/user, promo $18 to Dec 2026 (Copilot Business, under 300 seats) | $20/seat annual or $25 monthly (Team Standard, 5-seat min) | $20/seat annual or $25 monthly (ChatGPT Business, 2-seat min) |
| Enterprise | $30/user add-on (Copilot Enterprise) | $100/seat annual (Team Premium) or custom (Enterprise) | Custom pricing |
| True cost for 30 users | ~$540-630/month (Business) plus M365 base, plus Cowork credits if enabled | ~$600/month (Team Standard, annual) | ~$600/month (Business, annual) |
The pricing looks similar on paper, but the real cost of Copilot is higher because it requires an existing Microsoft 365 licence underneath it, and those licences got more expensive on 1 July 2026. Watch the consumption layer too. Copilot Cowork bills per credit on top of the seat price, which is a new and less predictable line item that did not exist in May. Claude Team or ChatGPT Business at $20 per seat on annual billing is standalone and flat. One genuine price cut worth noting: Claude Team Premium seats, the tier that includes Claude Code for technical staff, dropped from $150 to $100 per seat on annual billing this year, which changes the maths on equipping a small engineering or analyst team.
This is where the decision gets serious for businesses handling sensitive data.
Copilot inherits your Microsoft 365 security settings. If you have Conditional Access, sensitivity labels, and data loss prevention policies configured properly, Copilot operates within those boundaries. Your data stays in your Microsoft tenant. When Anthropic models are used inside Copilot, Anthropic acts as a Microsoft subprocessor under the Microsoft Data Protection Addendum, with no separate Anthropic contract required. For Australian commercial tenants Anthropic models are on by default; in the EU, EFTA, and UK they are off by default, and a GCC government-cloud setting begins rolling out from 15 July 2026. One new governance job: if you enable Cowork, configure credit spending limits at the tenant, group, and user level before anyone touches it.
Claude standalone does not train on your data on any paid plan. Anthropic’s privacy position is the most conservative of the three, and the Fable 5 launch reinforced it: this is the vendor that shipped its frontier model with safety classifiers on by default and accepted a slower rollout to do it. For businesses in legal, healthcare, or finance where data handling is paramount, this matters. The Enterprise plan adds audit logs, SSO, SCIM, custom data retention including Zero Data Retention, and new admin analytics with model-level entitlements and spend alerts.
ChatGPT Business and Enterprise plans do not use your data for training. The consumer versions (Free, Go, Plus) may use your conversations to improve models unless you opt out, and Free and Go show ads in some markets. For business use, always use the Business or Enterprise tier, never individual accounts.
The governance challenge is not which tool is safest in theory. It is that your staff are probably already using one or more of these on personal accounts, outside your visibility and control. Shadow AI is a real risk. A formal policy and a managed deployment matter more than the specific tool you choose.
We are a Microsoft Solutions Partner. We sell and manage Microsoft 365 for our clients. We also chose Claude as our primary AI platform, not Copilot. That decision was not political. It was practical, and everything that happened in June has sharpened the answer rather than changed it.
Copilot is the right tool for in-Microsoft workflow automation. If your team spends hours in Outlook, Teams, and Excel, Copilot Business at the current $18 promotional rate will save them time. With Anthropic models turned on, the same licence gives them Claude inside Copilot Chat, Word, Excel, Researcher, and Copilot Studio for the deep work where OpenAI models are weaker. Just govern the Cowork credit spend from day one.
Claude standalone is still the right tool for deep work outside the Microsoft estate, and Fable 5 made that case stronger. Document analysis, compliance reviews, strategy documents, coding via Claude Code, and any task that needs the full 1M-token context window or a Claude-native surface like Claude for Excel, Claude Cowork, or Claude in Chrome. We deploy it for our AI services clients and use it internally for everything from cybersecurity assessments to client reporting.
ChatGPT Business is the right tool for breadth. If your team needs a single versatile AI assistant for a wide range of tasks and is not deeply embedded in Microsoft 365, it is the safe default at $20 per seat annual. Buy it for what GPT-5.5 does today, not for what GPT-5.6 might do when the government clears it.
For most Australian SMBs with 20 to 100 staff running Microsoft 365, the combination that delivers the most value is Copilot Business with Anthropic models enabled, plus a small number of standalone Claude Team seats for analysts, technical staff, and writers. The Team Premium price cut makes those specialist seats cheaper than they were at the start of the year. ChatGPT fills the gaps for creative tasks and image generation if needed.
Whatever you choose, deploy it properly. Set up an AI governance policy, run an AI readiness assessment, and manage the rollout through your managed IT services provider, not through individual staff signing up on personal credit cards.
Audit what your staff are already using. Before you buy anything, find out which AI tools are already in use on personal accounts across your business. That list, not a vendor comparison, should drive your first governance decisions.
Review your Microsoft renewal against the new pricing. The 1 July price rise is now baked into renewals, and the $18 Copilot Business promotion runs to December 2026. Recost the Copilot decision with both numbers in front of you rather than the figures from earlier this year.
Get an independent read on your AI readiness. We run free AI readiness assessments that map tools to roles, flag the governance gaps, and give you a deployment plan. Contact us and we will book one in.
It depends on your primary use case. Copilot is best for businesses that live in Microsoft 365 and want AI embedded in Outlook, Teams, and Excel, and it now includes the option to use Claude alongside OpenAI models. Claude on its own is best for deep document analysis, compliance work, or coding without the Microsoft licence overhead. ChatGPT Business is best as a versatile general-purpose tool. In the ChatGPT vs Copilot vs Claude for business decision, many organisations benefit from using two of the three.
Yes. Claude is available as a model option in Copilot Chat, Researcher, Copilot Studio, and Edit with Copilot in Excel for licensed users in commercial cloud tenants. Admins enable Anthropic models in the Microsoft 365 admin centre, then users pick the model family from the switcher. Anthropic models are on by default for Australian commercial tenants and off by default in the EU, EFTA, and UK.
Claude Fable 5 is Anthropic’s Mythos-class model launched on 9 June 2026, and it is the most capable publicly available AI model. It was briefly suspended under a US export-control directive and restored globally on 1 July 2026. It is available to paid Claude subscribers and enterprise customers, ships with safety classifiers that route a small share of high-risk queries to Claude Opus 4.8, and shows its biggest gains on long, complex analytical and coding work.
OpenAI previewed the GPT-5.6 family (Sol, Terra, and Luna) on 26 June 2026, but at the US government’s request the release is limited to a small group of vetted partner organisations while a new federal assessment framework is finalised. There is no public waitlist. ChatGPT subscribers remain on GPT-5.5, with broader availability promised in the coming weeks. Plan your deployment around GPT-5.5, which is what you are actually buying today.
Copilot Business is $21 USD per user per month for SMBs under 300 seats, with a promotional rate of $18 per user on annual commitment running until December 2026. Copilot Enterprise is $30 USD per user per month. Both require an eligible Microsoft 365 base licence, which increased in price from 1 July 2026. Copilot Cowork is billed separately on consumption through Copilot Credits at $0.01 per credit.
All three offer strong data protection on their business and enterprise tiers. Copilot inherits your existing Microsoft 365 security settings, and when Anthropic models are used inside Copilot, Anthropic acts as a Microsoft subprocessor. Claude standalone has the most conservative privacy stance, with no training on your data on any paid plan. ChatGPT Business and Enterprise do not use your data for training. The biggest risk is not the tool itself but unmanaged usage by staff on personal accounts, so an AI governance policy matters more than the specific tool you choose.
Copilot Business for 50 users costs around $900 to $1,050 per month on top of your existing Microsoft 365 licences, plus any Cowork credit consumption. Claude Team Standard or ChatGPT Business for 50 users each cost around $1,000 per month on annual billing. Most businesses do not need every user on every tool. A typical ChatGPT vs Copilot vs Claude for business deployment puts the whole team on Copilot Business with Anthropic models turned on, then adds 5 to 10 Claude Team Premium seats (now $100 per seat annual, down from $150) for engineers and analysts who need Claude Code.
