Google Gemini vs OpenAI: The AI Arms Race Reshaping Your Business Tools

The AI competition between Google and OpenAI is escalating quickly, and the knock-on effect for small businesses is that the tools you use every day are changing fast. Microsoft 365 now has Copilot built in. Google Workspace has Gemini. ChatGPT has expanded beyond a chat window into something closer to a business platform. Choosing between them has become genuinely confusing.

This is our attempt to cut through the noise with a practical comparison based on how Perth businesses actually work, not on benchmark scores that don't translate to real tasks.

The Three Platforms and What They Actually Are

Google Workspace with Gemini is Google's AI layer built into Gmail, Google Docs, Google Sheets, Google Meet, and Google Drive. If your business already runs on Google Workspace, Gemini is essentially embedded into the tools you use. You can ask it to summarise email threads, draft responses, write content in Google Docs, analyse data in Sheets, and generate meeting summaries from Google Meet transcripts.

Google Workspace Business Starter with Gemini included starts at around AU$15 to $18 per user per month depending on the plan and current pricing. Gemini features are included from the Business Standard tier upward, and Google has been progressively rolling them down to lower tiers as competition has intensified.

Microsoft 365 with Copilot is the same concept applied to Microsoft's suite: Word, Outlook, Excel, Teams, and PowerPoint. Copilot can draft documents in Word, summarise and reply to emails in Outlook, analyse and explain data in Excel, and generate presentations in PowerPoint from a text prompt. The catch is pricing: Microsoft 365 Copilot is a separate add-on that currently costs around AU$40 to $45 per user per month on top of your existing Microsoft 365 subscription.

ChatGPT Plus from OpenAI operates differently. It's not embedded in your existing productivity suite. It's a standalone tool you visit or access via an app, and you bring your tasks to it. ChatGPT Plus costs around AU$28 to $30 per user per month and gives you access to the most capable GPT-4 class models, image generation via DALL-E, voice conversation, and the ability to create custom GPT configurations for specific tasks. Enterprise plans with stronger data privacy controls are available at higher pricing.

Comparing by Task

For drafting long documents, Microsoft Copilot in Word has a practical advantage for businesses deeply embedded in the Microsoft ecosystem, because the AI works directly inside the document. You draft, ask Copilot to expand a section, regenerate a paragraph, or reformat the structure, all without switching applications. Google Docs with Gemini offers a similar experience if you're on Workspace. ChatGPT requires copy-pasting, which adds friction for longer documents but works well for discrete sections.

For email management, if you're drowning in email, both Copilot in Outlook and Gemini in Gmail offer summarisation and smart replies that can meaningfully reduce the time you spend in your inbox. Gemini in Gmail has the advantage of being able to reference your entire email history and draft in your style once it has enough context. Copilot in Outlook does the same within the Microsoft ecosystem. ChatGPT can help draft emails but doesn't have access to your inbox, so it works from what you paste in.

For analysing spreadsheet data, Microsoft Copilot in Excel is genuinely impressive. You can describe what you want to understand in plain English: "Show me which clients had the highest revenue growth in the last quarter" and it will generate the analysis. Gemini in Google Sheets is catching up but currently sits slightly behind Excel's Copilot integration in capability. ChatGPT can analyse data if you export and paste it in, but the friction makes it less practical for routine use.

For customer-facing chatbots, ChatGPT's API and the ability to build custom GPTs make it the most flexible option for businesses that want an AI assistant on their website or integrated into their customer communications. Google and Microsoft both have API access, but for small businesses without development resources, ChatGPT's interface for building custom assistants is more accessible.

For image generation, ChatGPT's DALL-E integration is the most mature consumer-facing option. Microsoft Designer (which uses similar underlying technology) is included with Microsoft 365 and is improving quickly. Google's ImageFX is capable but less tightly integrated into the business workflow.

The Practical Recommendation

If your business runs on Google Workspace, the path of least resistance is enabling Gemini within your existing subscription. You get AI assistance in the tools you already use without adding new costs or workflows. The learning curve is minimal because you're using the same apps you've always used.

If your business runs on Microsoft 365 and you process a lot of documents, emails, and spreadsheets, the Copilot add-on at approximately AU$45 per user is worth testing with one or two power users before committing the whole team. The Excel integration alone can pay for itself quickly if you do regular data analysis or reporting.

If you're not committed to either ecosystem, or you want the most flexible general-purpose AI assistant for tasks that span multiple applications, ChatGPT Plus at approximately AU$30 per user offers the broadest capability and the most direct access to the latest models.

The mistake to avoid is subscribing to all three simultaneously without a clear use case for each. Pick the one that maps to where you actually spend your time, use it consistently for 30 days, and then decide whether you need anything else. Most small businesses will find one platform covers the majority of what they need.

A Note on Data and Privacy

Before using any AI tool for business tasks, check the data handling settings. ChatGPT's free tier uses conversations to train models by default; the paid tier gives you the option to turn this off. Microsoft and Google enterprise accounts have data handling agreements that prevent your content being used for training. If you're handling sensitive client information, legal documents, or anything confidential, use the paid business tiers and review the privacy settings. It takes five minutes and matters more than most people realise.