Claude Cowork vs ChatGPT Work: the new «office agent» war
In under ten days, Anthropic and OpenAI both shipped their own version of the same idea: an AI agent that doesn’t just answer questions, but executes finished work — building a spreadsheet, drafting a report, browsing websites, coordinating tasks — and hands you the result done. Anthropic expanded Claude Cowork to web and mobile on July 7, 2026; two days later, OpenAI rolled out ChatGPT Work globally. If you run a B2B SMB in Chile or Brazil and already pay for one of these AI suites, the question isn’t «should I try an agent?» anymore — it’s «which one is actually worth paying for?»
We already covered what ChatGPT Work is and how it automates a B2B SMB in detail. This time we put both tools side by side so the buying decision is quick.
The key difference: where each agent actually lives
The most important difference isn’t model «intelligence» — it’s architecture:
- Claude Cowork runs as a third tab inside the Claude desktop app (macOS and Windows, now also web and mobile since July 7). It has direct file-system access: you point it at a folder, describe the outcome you want, and Claude works on your own documents, Excel files, and PowerPoint decks. The work runs on Anthropic’s servers in an isolated environment, so it keeps going even if you close your laptop, and you can pick the session back up from your phone.
- ChatGPT Work operates inside a virtual browser environment: it browses sites, fills out forms, and pulls information from multiple web sources, combining ChatGPT with Codex. It runs on a staged-approval model — Plan mode before it starts, mid-task checkpoints, and actions gated on your sign-off — powered by the new GPT-5.6 family (Sol, Terra, and Luna, depending on task complexity).
In practice: if your bottleneck is internal files (sorting expenses, turning contracts into a tracker, building a report from several spreadsheets), Cowork has the edge because it works directly on your own disk. If your bottleneck is web research and action (comparing vendors, booking, gathering data across several sites, spinning up a simple web app prototype), Work is built for that.
Pricing: two very different billing models
Here’s the part that matters most for a budget-conscious SMB:
- Claude Cowork is bundled into existing paid plans: Pro (from $20/month), Max 5x (~$100/month), Max 20x (~$200/month), Team (from $25/user/month), and volume-priced Enterprise. There’s no extra fee just to use Cowork, but usage burns through your plan’s quota faster than regular chat, and features like Race Mode (running several sessions in parallel) are locked to the $100 Max plan.
- ChatGPT Work has no price tag of its own: it follows the same consumption logic as Codex, so a long, complex task eats more of your Plus, Pro, or Business plan quota. OpenAI didn’t publish per-task rates or hard limits at launch, which means budgeting for it like an API workload riding on top of your subscription, not a flat add-on fee.
Both models share a risk we already covered in depth: leaving agents running unsupervised can spike usage without anyone noticing until the bill lands. Before turning on scheduled tasks or the autonomous mode on either tool, read how to avoid the AI agent surprise bill before letting either run unattended all week.
Which one is right for a B2B SMB in Chile or Brazil?
The right pick depends on the kind of work eating your time right now:
- Pick Claude Cowork if your team lives in Excel sheets, financial reports, contracts, and internal documents, and you care about polished, on-tone writing — Claude still leads on long-form writing and tone control, which matters for sales proposals and board reports.
- Pick ChatGPT Work if your operation depends on researching vendors, comparing prices online, generating leads from scattered web sources, or spinning up quick web app prototypes without writing code.
- Consider running both if your SMB already pays for Google Workspace or Microsoft 365 and can absorb two subscriptions: many teams use ChatGPT for research and creative drafts, and Cowork for the final work on real files.
If you’re still not sure which AI engine fits how your team works overall — beyond these agent features — check our unbiased Claude vs ChatGPT comparison for 2026, with no marketing spin from either company.
A checklist for testing without blowing your budget
- Start on the cheapest plan (Pro on Claude, Plus on ChatGPT) and track real usage for two weeks before upgrading.
- Assign one team member to review and approve everything the agent delivers, at least for the first month.
- Test a low-risk task first: cleaning up an expenses folder or summarizing meetings — not a contract with a key client.
- Decide upfront which folders or accounts the agent may NOT touch, especially anything holding customer data.
Neither tool replaces your team yet, but both are already good enough to strip hours of admin work off your plate this week. The SMB that wins isn’t the one that adopts first — it’s the one that actually measures which agent saves time, and cuts the rest.
