They are more alike than the noise suggests.
ChatGPT, Claude, and Gemini all read files, write drafts, summarize documents, and handle every prompt in this playbook. The differences are real but small — much smaller than the difference between using one of them well and hopping between all three casually. You are not behind because you picked the “wrong” one. Nobody loses a deal over this choice.
What actually matters: pick one, pay the roughly $20 a month, and use it every working day for a month. The free versions run weaker models and cut you off mid-task — many people judge AI by the free tier and walk away underwhelmed, which is like test-driving a car with the handbrake on. One paid subscription that saves your team two hours a week is the cheapest productivity purchase you will make this year.
How to choose between them.
ChatGPT
OpenAI
The strongest all-rounder and the easiest place to start. Built-in image generation is genuinely useful for event moodboards and concept visuals, and voice mode means you can talk through an idea on the drive back from a site visit. If your team has no strong reason to pick something else, pick this.
Claude
Anthropic
The best of the three at long documents and writing quality. Feed it a 40-page RFP or a supplier contract and its reading is noticeably more careful; its drafts sound less like AI wrote them. This is what I personally use most — honest disclosure: Jyper is built on it, so judge that bias for yourself.
Gemini
The right answer if your company runs on Gmail and Google Workspace. It is already inside your email, docs, and calendar, so “summarize this thread” or “draft a reply” happens where the work already lives, with no copy-pasting. On its own it is fine; inside Workspace it is the path of least resistance.
Learn these three features. They matter more than the brand.
Attaching files
The single biggest upgrade from “typing questions” to real work. Attach the RFP, the three supplier PDFs, the draft itinerary — and ask about them. Every useful prompt in this playbook assumes you attach the real documents instead of describing them.
Saved instructions
ChatGPT and Claude call them Projects; Gemini calls them Gems. You write your company information and rules once, and every chat inside that project starts already knowing your business. This kills the biggest quiet frustration with AI: re-explaining yourself every morning.
Voice input
Speaking is three to four times faster than typing, and AI does not care that your spoken note is messy — it will structure it for you. Most people type short lazy prompts because typing long ones is annoying. Dictating removes that excuse.
Specialist tools, only when the job calls for them.
The job
Dictate notes anywhere on your computer
Use
Superwhisper or Wispr Flow
These put voice-to-text everywhere — email, CRM, chat — not just inside the AI apps. Record three messy minutes after a site visit, then let AI turn it into a follow-up email and a task list.
The job
Create images and visual concepts
Use
ChatGPT
For moodboards, event-concept visuals, and “this is roughly what I mean” images for proposals, the image tools built into ChatGPT are enough. You do not need a separate subscription for this.
The job
Create a short soundtrack
Use
Suno
A 30-second original track for a proposal video or event teaser, from a text description. Niche, but when you need it, it takes ten minutes instead of a licensing conversation.
The job
Generate video
Use
The current leader — it changes every few months
Video generation is impressive and unstable as a market. Do not subscribe to anything long-term; when you need a clip, check what is currently best and pay for one month. The durable skill is describing the scene, mood, and pace clearly — that transfers between tools.