Custom GPTs have quietly become my daily toolkit, and with Other sources reporting more than 150,000 public options in the GPT store, I still keep coming back to a core five. They cover spreadsheets, design, coding, content, and experimentation so well that they feel less like novelties and more like essential apps. Here is why I cannot quit these five, and why they are a smart starting point before you dive into the hundreds more worth a spin.
Excel AI
Excel AI is the custom GPT I rely on whenever a spreadsheet stops being intuitive and starts feeling like a puzzle. The official Excel AI description emphasizes that it is tuned specifically for Microsoft Excel, which means it understands formulas, pivot tables, and data cleaning tasks in context. Paired with reporting that notes how Excel can do but often overwhelms nonexperts, the case for a dedicated helper is clear.
In practice, I use it to translate plain-language questions into nested functions, debug #VALUE! errors, and even suggest better ways to structure a workbook. For analysts, founders, or students, the stakes are obvious: fewer broken models and faster answers to “what do these numbers mean.” As more teams automate reporting, a GPT that understands both Oct and Excel syntax becomes a quiet force multiplier, turning spreadsheet literacy into something closer to a conversation.
Canva GPT
Canva GPT is the visual counterpart to Excel AI, and it is the design assistant I open whenever I need a polished asset on a tight deadline. Coverage of Canva consistently describes it as one of the best tools for sharp, professional graphics, and Jan reporting on Canva GPT explains how it pairs that platform with AI-powered support. The result is a workflow where I can describe a LinkedIn carousel, pitch deck slide, or event flyer in a sentence and get a ready-to-edit layout.
Because Canva GPT sits inside the same ecosystem as templates, brand kits, and exports, it reduces the friction between idea and finished asset. Marketers and small businesses gain the most here: they can keep campaigns visually consistent without hiring a full-time designer. When sources describe Canva as “One of the” easiest design tools, this GPT is what makes that ease extend to concepting, not just tweaking fonts and colors.
Grimoire
Grimoire is the coding GPT I turn to when I need to move from idea to working prototype without getting lost in boilerplate. A Jan guide on building apps highlights a BONUS section that calls Grimoire a custom GPT “that’s better at coding than default ChatGPT,” positioning it as a focused assistant for shipping software. The same piece notes that this GPT was created specifically to help nondevelopers scaffold apps, which aligns with my experience using it to spin up React components or simple APIs.
Entrepreneur-focused lists that mention Grimoire alongside tools that help troubleshoot code reinforce its role as a bridge between idea and implementation. For solo creators, the stakes are significant: Grimoire lowers the barrier to testing new products without waiting on a development team. I see it as a way to validate concepts quickly, then hand cleaner, better-documented code to engineers once an idea proves itself.
Video GPT by VEED
Video GPT by VEED is the custom GPT I rely on when I need to turn a script or outline into something ready for YouTube Shorts or Instagram Reels. Productivity coverage describes Video GPT by VEED as best for creating video content quickly with AI-generated scripts and edits, and that matches how I use it. I feed it a topic, audience, and platform, and it returns a shot list, captions, and pacing suggestions that respect each channel’s norms.
When paired with tools like InVideo AI, which helps small businesses create short-form clips for platforms such as Instagram, this GPT becomes part of a broader shift toward AI-assisted video production. For creators and marketers, the implication is that scripting and editing are no longer the bottlenecks. Instead, the challenge becomes choosing the right message, while Video GPT handles the structure and timing that keep viewers watching.
Discovery and Niche Builders
The last “GPT I cannot quit” is not a single bot but the discovery process itself, powered by niche builders and curated lists. A BYU overview notes that Other sources report more than 150k public GPTs, which makes navigation a serious challenge. That is where creators who Create GPTs for about specific industries, and reviewers like Randy Kemp, who publicly tested five custom GPTs, become essential guides.
I often start by scanning curated videos that showcase standout GPTs, such as an Apr walkthrough of how someone found a photorealistic GPT by exploring the GPT categories. From there, I bookmark tools that solve narrow problems, like a Short Form Script Writer or a Viral Post Formatter, and rotate them into my workflow. The stakes here are strategic: in a landscape this crowded, the real advantage goes to people who treat GPT discovery as an ongoing habit, not a one-time search.
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