
I've been testing these platforms since OpenAI's enterprise pricing bullshit announcement in August 2023. Here's what actually happens when you deploy them, not what the marketing brochures promise.
Microsoft Copilot: Good If You Enjoy Fighting DLP Policies

If you already live in Microsoft land, Copilot costs $30/user on top of your M365 subscription. That's $52/user total if you need Business Premium.
What actually works: Writing emails in Outlook (saves 10 minutes per day). Excel formulas when you can't remember VLOOKUP syntax. Word documents that don't suck.
What breaks constantly: SharePoint integration randomly stops working. DLP policies block everything (even basic email templates) until you disable 'AI content detection' in the Security & Compliance Center. Our IT guy spent 8 hours just getting it to work with our existing Teams setup.
The real gotcha: You need Business Premium ($22/user) BEFORE you can add Copilot. Microsoft doesn't mention this in their $30/user marketing. That's $52/user total, not $30.
War story: Deployed it for our sales team in December 2024. Half their email templates got blocked by DLP policies we didn't even know we had. Kept getting "DLP-GeneratedByML" errors with zero explanation of what that meant. Took two weeks and three support tickets to fix because Microsoft's documentation assumes you have a full-time IT department, not a CTO who's also doing DevOps, security, and customer support.
Claude Team: Actually Smart, But Rate Limits Will Bite You

Claude is legitimately better at technical work than ChatGPT. It costs $25/user with a 5-user minimum, so $125/month for small teams.
What's genuinely good: The context window is massive - it can read entire codebases. Found bugs in our React app that I'd been staring at for hours. Better at explaining complex technical concepts without hallucinating.
The rate limit reality: You'll hit limits when you're in flow state. Nothing kills productivity like "You've reached your usage limit" when you're debugging at 2 AM. Plan for this frustration.
Setup was actually easy: SAML SSO took 3 hours including figuring out our identity provider config. No weird Microsoft-style surprises.
Missing features: No image generation, no internet access. You'll need something else for visual content or recent information. It's focused on being good at text, which it is.
Nobody tells you this: Claude's context window is massive, but it'll timeout on our React codebase anyway. I tested this in November 2024 after Anthropic's rate limit "improvements" - still got Rate Limited (HTTP 429) errors during a weekend deploy when everyone was debugging at the same time. Had to throttle the team to one person at a time, which defeats the whole point of having a team subscription.
Google Gemini: Free But You Get What You Pay For

If you use Google Workspace, Gemini is free. Actually free, not "free trial" free. Turn it on in admin console and you're done.
What works well: Gmail integration is smooth. It can summarize long email threads without breaking. Docs integration helps with writing when you're stuck.
Support is basically non-existent: When it breaks, you're screwed. Google's enterprise support is famously terrible. I opened a ticket in January about Gmail integration issues and got a response 3 weeks later from someone who clearly copy-pasted "have you tried turning it off and on again?" I could've googled that myself.
It's free for a reason: Not as capable as Claude or ChatGPT for complex tasks. Fine for simple content, struggles with technical analysis. But hey, it's free.
The dirty secret: Google's "free" Gemini costs you in support headaches later. When I opened a ticket in January about Gmail integration issues, they took 3 weeks to respond with a copy-paste "have you tried turning it off and on again?" Since Microsoft changed DLP defaults in late 2023, at least their pain is documented. Google just shrugs and points you to community forums where hope goes to die.
TypingMind: Great Until Someone Discovers Claude Opus

TypingMind gives you access to every AI model through one interface. Starts at $99/month for 5 users, but API costs are separate and can explode.
The good: One interface for GPT-4, Claude, Gemini, Perplexity. Your team picks the right tool for each job. Easy setup if you don't mind managing API keys.
The dangerous: Someone will discover Claude Opus and burn $300 in API calls writing documentation. Happened to us in week 2. Now we set strict budgets and pray.
Budget management is critical: Set API limits or watch your AWS bill turn into a mortgage payment. Great tool if you trust your team to not go crazy with the expensive models.
Time bomb waiting: I set this up in February 2024 thinking I was smart. Week 2, our junior dev Jake discovered Claude Opus and burned $347.23 in API calls over a weekend writing "comprehensive documentation" for a side project. The invoice just said "API usage charges: $347.23" with zero breakdown of what ate the budget - no token counts, no model breakdown, just a fucking line item. Now we have spending alerts set to $50 increments and I get panic texts every time someone runs a complex query.

At $40/user monthly, it's expensive but worth it for research-heavy teams. Real-time web search with actual citations.
Why it's useful: Competitor analysis, market research, getting current info that AI training data misses. Actually shows sources unlike ChatGPT's confident hallucinations.
Cost reality: $1000/month for 25 users adds up fast. But if it saves your researchers 10 hours per week, the math works out.

Look, here's what actually works after 6 months of testing this shit: pick the right tool for each job instead of trying to make one platform do everything.
For daily business stuff: Google Gemini (free) or Microsoft Copilot (if you're already paying for M365)
For technical work: Claude Team ($125/month minimum)
For research: Perplexity Pro for your 3-5 heaviest researchers
Real cost for 25 users: About $8,000 annually with our current mix (Claude Team + Copilot for 15 users, Perplexity for 3 researchers). Compare that to OpenAI's $108,000 hostage situation. That $100k? That's like 18 months of runway extension, or two junior devs, or not having to explain to investors why we're burning cash on empty AI seats. The difference between Series A and liquidation.