Custom GPTs are the new rave among artificial intelligence (AI) enthusiasts. But why are people so invested in them? Find out the answer — and more — in this article.

Since its inception, ChatGPT changed the way we work and research with a single prompt, quickly becoming the world's fastest-growing web application by surpassing 100 million monthly users in just two months. With OpenAI rolling out custom versions of ChatGPT to the public, everyone can create their own custom GPTs easily.

And why not? Custom GPTs have the power to automate repetitive tasks and fulfill many business needs. However, with the large language model (LLM) market's value estimated to reach $40.8 billion by 2029, it's becoming challenging to find the right tool among the noise.

We're here to untangle this knot and help you understand more about custom GPTs.

What is a custom GPT?

A custom GPT is a personalized version of OpenAI's ChatGPT that you can tailor for specific business needs, tasks, or industries. You configure the model's behavior, personality, and knowledge base to align with your requirements.

But how do custom GPTs differ from normal ones? Let's find out!

What are the top 10 custom GPTs?

If you want to find some of the best custom GPTs around, you've come to the right place. Here's our list of the best options to save you time:

1. Guru GPT — Best custom GPT for accessing your knowledge base.

2. AI Grammar Checker — Best custom GPT for improving grammar.

3. Excel Formula Generator — Best custom GPT for generating Excel formulas.

4. DALL-E — Best custom GPT for generating realistic art and images.

5. Voice/Style/Tone AI Prompt Snippet Generator — Best custom GPT for generating prompt snippets in your voice and style.

6. Video AI — Best custom GPT for creating engaging videos.

7. SEO GPT by Writesonic — Best custom GPT for streamlining the SEO optimization process.

8. Marketer GPT Pro — Best custom GPT for creating on-brand marketing strategies.

9. Creative Writing Coach — Best custom GPT for improving your writing skills.

10. Canva — Best custom GPT for creating designs.

We won't leave you hanging, of course.

In the following paragraphs, let's explore each custom GPT in-depth, so you can make an informed decision at the end of the article.

1. Guru GPT

Guru GPT is a ChatGPT integration that instantly answers questions using your company's collective knowledge. It transforms ChatGPT into your AI-powered assistant for internal information.

Key capabilities:

• Search without switching: Access connected apps, docs, and chats directly in ChatGPT

• Content creation: Draft Guru Cards from conversations

• Knowledge integration: Combine ChatGPT's power with your internal data

Top features

• Conversational AI with internal knowledge: Guru GPT combines the power of ChatGPT with your company's internal knowledge, delivering personalized, plain-language answers with cited sources. You can ask follow-up questions for a dynamic, interactive experience tailored to your team's needs.

• Instant answers: You don't have to wait an eternity to get an answer. Guru GPT retrieves relevant information from your knowledge base easily.

• Multi-source support: Guru GPT works well with plenty of tools, such as Google Drive, Confluence, etc.

• Permissioning: Guru GPT searches only the content that a user has permission to access within Guru.

Best for: Guru GPT is perfect for companies looking to harness the power of ChatGPT, enhanced with deep knowledge of their own internal information, for truly tailored and accurate responses.

2. AI Grammar Checker

Source: ChatGPT

AI Grammar Checker by Mindstream acts like your personal English tutor. This AI tool is useful for perfecting your grammar and spelling, helping you avoid common mistakes, including punctuation, tenses, and more.

Moreover, it provides educational guidance, which means that it offers clear explanations of why something is incorrect. This way, you understand what you did wrong, so you can better improve your language skills.

Top features

• Vocabulary enhancement: Aside from offering suggestions on how to improve your sentence structure, AI Grammar Checker also provides suggestions on better word choices to make your writing impactful.

• User-friendly interface: Using this AI tool is intuitive, as it employs a very user-friendly interface, even for beginners.

• Real-time assistance: You don't need to tackle grammar errors on your own, as AI Grammar Checker provides immediate feedback so you can correct them on the go.

Best for: AI Grammar Checker is best for improving your writing skills.

3. Excel Formula Generator

Source: ChatGPT

Spreadsheets might be easy to use at first glance. But Microsoft Excel relies heavily on formulas if you want to make it look decent, which means you need advanced knowledge to use it to its full potential.

This is where this AI plugin comes in handy, providing accurate and relevant Excel formulas that save users time and effort. Instead of web browsing for the formula, the custom GPT generates it based on your description or the issue you're facing.

Top features

• Detailed explanations: Excel Formula Generator provides step-by-step and clear instructions on where to include the formula, how it works, etc.

• Responsive assistance: This add-on responds quickly to every user query, offering easy solutions to any Excel problem.

• Privacy and security: Excel Formula Generator doesn't request access to your spreadsheet, ensuring the privacy of your data.

Best for: Excel Formula Generator is suitable for businesses that use Excel as their main tool for handling data.

4. DALL-E

Source: ChatGPT

DALL-E by OpenAI is an AI image generator that people can use to create original images and art from simple text descriptions. You can combine new concepts and styles to generate the image of your dreams, ideal for articles, LinkedIn, or social media posts.

This custom GPT helps you enhance your creativity but also makes it easier to convey your ideas. Plus, it saves you time as you stop manually searching for the right image.

Top features

• Outpainting: Expand the image you generate beyond its original borders to better fit your creative image.

• Inpainting: If you feel like an image is missing something, ask DALL-E to add an object. It can even remove objects.

• Variations: Did DALL-E generate an image, but it's not quite there? You can ask it to create different variations till you find the one.

Best for: DALL-E is a great custom GPT for generating art and images.

5. Voice/Style/Tone AI Prompt Snippet Generator

Source: ChatGPT

This AI tool analyzes your writing, from voice to style to tone. It generates prompt snippets that mimic your voice, prompts that you can use to guide other AIs into replicating your tone.

You simply need to select a text sample, submit it through a link, upload, or direct input, and specify your requirements. After you receive the detailed prompt snippet, you can review it and make adjustments, then apply it to different contents.

Top features

• Tone adaptation: To resonate with your audience, this custom GPT emulates the emotional undertones of a text, ensuring that it sounds casual, professional, etc.

• Grammatical consistency: Writing in correct grammar is vital for making your text sound professional. So, this tool replicates grammatical patterns to ensure clarity and consistency.

• Multi-context adaptability: The writing this tool generates adapts to different types of content, suitable for marketing, storytelling, and more.

Best for: This AI plugin is ideal for content creators, marketing professionals, and writers.

6. Video AI

Source: ChatGPT

Video AI is a custom GPT that focuses on creating fully narrated, engaging, and high-quality videos, complete with voiceovers in multiple languages.

With a single prompt, you can generate ideas for scripts tailored to your specific needs, tone, style, and target audience. This versatility also translates into the platforms the videos are compatible with, such as YouTube, TikTok, Instagram, and more.

In a nutshell, you save time and money on the production of your videos.

Top features

• Scriptwriting: With this AI tool, you can write voiceover scripts from scratch according to your requirements.

• Idea generation: If you're out of fresh ideas for your next video, this AI tool will help you generate ideas based on your input.

• Customization: Adjust the script to fit your tone, style, and audience.

Best for: Video AI is great for marketing teams, but also for personal use.

7. SEO GPT by Writesonic

Source: ChatGPT

SEO GPT by Writesonic offers a complete toolkit that helps you with SEO optimization and analysis, including relevant keywords or content structure.

By allowing the tool to quickly generate comprehensive SEO insights, you can improve your content's SEO more effectively. And gain a competitive advantage over your competitors by discovering long-tail keywords and understanding market trends.

SEO GPT works to automate the keyword research process, which helps you save time and effort while increasing visibility and traffic in search engine results.

Top features

• SEO score: This tool allows you to check the SEO score of any of your articles based on a URL.

• Generate SEO keywords: To compete with your rivals, SEO GPT offers and generates long-tail keywords that make a difference.

• Technical SEO analysis: Give this tool any URL and it will analyze meta tags, broken links, or image alt texts to ensure everything is in order.

Best for: SEO GPT is for companies that want to streamline their SEO optimization process.

8. Marketer GPT Pro

Source: ChatGPT

Think of Marketer GPT Pro as your very own marketing strategy consultant. This custom GPT is an expert at crafting the perfect marketing strategy for your brand with a single prompt.

It includes all you need, from setting goals, performing market research, and coming up with a strategy focused on user experience and organic growth.

As a result, you can draft a promotion strategy for your brand, suggest social media posts, or even analyze market trends that fit your industry.

Top features

• Brand analysis: Everything's on-brand for Marketer GPT Pro, helping you craft strategies that resonate with your brand and reflect your core values.

• Customer insights: Marketer GPT Pro provides valuable insights into customer behavior, such as purchase decisions or shopping cart abandonment, so you can understand their reasoning better.

• Packaging design: What makes Marketer GPT Pro unique is its ability to provide tips on how to create compelling packaging.

Best for: Marketer GPT Pro is a good custom GPT for creating on-brand marketing campaigns.

9. Creative Writing Coach

Source: ChatGPT

Creative Writing Coach does what its name implies: improves your writing skills and boosts your creativity. You'll receive detailed feedback and suggestions on your text that'll help you refine your writing.

Moreover, since the feedback is tailored to your goals, needs, and style, the AI tool makes sure you only receive guidance that's relevant and actionable rather than offering a general critique.

If you need encouragement to overcome your writer's block, this custom GPT is there to help by offering access to various prompts, exercises, and techniques.

Top features

• Detailed analysis: To help you improve, Creative Writing Coach offers in-depth feedback regarding plot, characters, and dialogue.

• Style guidance: If you want to write in a specific style, Creative Writing Coach can push you till you find your own unique voice.

• Resources: Creative Writing Coach offers books, articles, and other recommendations to help you learn.

Best for: Creative Writing Coach is suitable for people who want to improve their writing.

10. Canva

Source: ChatGPT

Canva is a design toolkit that people can use to create professional designs, whether we're talking about presentations, workflows, or business cards.

In a nutshell, Canva's integration with ChatGPT allows you to bring stunning designs to life based on your descriptions. The tool's interface is easy to use, so anyone can use it regardless of their experience.

Moreover, if you're out of ideas, you can quickly generate a variety of designs using templates from Canva's large library.

Top features

• Customization: Canva allows you to easily change elements of the design to suit your needs and match your vision.

• Continuous support: You're not alone, as Canva offers guidance and tips for ensuring a smooth design process.

• Interactive thumbnails: You can click on any thumbnail to easily view or edit the design in Canva.

Best for: Canva is an ideal choice for designers who want to streamline the design process.

How much do custom GPTs cost?

Custom GPT costs vary significantly based on your needs and scale.

Individual/Small Teams:

• Cost: Often included in premium subscriptions (e.g., ChatGPT Plus)

• Best for: Personal productivity and small-scale tasks

Enterprise Solutions:

• Pricing factors: Number of users, data volume, support level

• Focus: Security, scalability, and integration

• ROI: Higher initial costs offset by governed AI and data protection

Are custom GPTs secure for enterprises?

Security is a primary concern for any CIO or IT leader considering AI. While public custom GPTs are powerful, they may not meet enterprise security and compliance standards. Using them with sensitive company information can pose risks, as data may be used for model training or be vulnerable to leaks.

An enterprise-grade AI source of truth like Guru is built with security at its core. It provides policy-enforced, permission-aware answers, ensuring that users and AI only see information they are authorized to access. With Guru, your data is never used for training third-party models. Every answer comes with citations and audit logs, providing the lineage and transparency that businesses need to trust their AI.

What are the benefits of a custom GPT?

Custom GPTs offer significant business advantages:

• Enhanced efficiency: Automate content creation and repetitive tasks, with some businesses reporting up to 40% productivity gains and significant workflow improvements.

• Better accuracy: Specialized datasets provide more precise responses for specific fields, with fine-tuned models showing improved diagnostic accuracy by as much as 30% and achieving up to 90% issue resolution.

• Continuous learning: Models adapt to market changes and new data trends

• Improved user experience: Context-aware responses lead to higher customer satisfaction; for example, one company that tailored GPTs for its onboarding process saw improved customer satisfaction scores after cutting onboarding time by 60%.

• Cost efficiency: Reduce manual work, allowing teams to focus on strategic priorities. In customer support, for instance, custom GPTs have helped with reducing costs by half by handling a high volume of inquiries instantly.

Alright, we've covered the advantages. But what about the disadvantages?

What should you consider when adopting a custom GPT?

Adoption rates of custom GPTs continue to increase as more people invest in them. A Pew Research Center survey found that a majority of U.S. adults are familiar with ChatGPT, indicating widespread awareness that fuels adoption. The highest percentage of ChatGPT users belongs to the USA (15.2%), followed by India.

But what did they consider when choosing their custom GPT?

Let's see…

• Data infrastructure readiness: Is your data infrastructure ready for an AI integration? Or does it still need some work? Make sure it is before the adoption, as it can determine the success of the implementation.

• Data quality and quantity: Another thing to keep in mind is access to quality data. If you have little to no training data, it's best to wait a bit to collect it. Why? To ensure the training of the AI model is effective.

• Workforce impact: Not everyone will be pleased with the custom GPT, especially if it's the first time they interact with it. Think about how it will impact your employees and if you need to invest in extra tutorials or building new skill sets.

• Ethical implications: With any AI-powered app or ChatGPT alternative comes ethical questions about how it uses your data. Moreover, you should consider whether there are any biases in your datasets, so you can remove them before they do harm.

• Costs and ROI: Some custom GPTs might not be expensive, but there are many fees associated with developing, deploying, and maintaining them. However, the investment can pay off, as businesses leveraging AI are seeing ROI boosts of 10 to 20%. Make sure you have the budget for a custom GPT so you won't regret it later.

Do we need to cover anything else?

That's about it, so head on to chat.openai.com to start building your custom GPT now!

Build your enterprise AI source of truth with Guru

Public custom GPTs work for specific tasks, but enterprises need comprehensive solutions. Guru is your AI Source of Truth, connecting company applications to deliver secure, permission-aware answers organization-wide.

Instead of managing dozens of separate GPTs, you can build trust automatically with a single Knowledge Agent that improves over time. Ready to see how a governed AI platform can transform your business? Watch a demo to learn more.