# Programming Custom GPTs

> Source: https://aiwiki.ai/wiki/programming_custom_gpts
> Updated: 2026-06-29
> Categories: ChatGPT
> License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)
> From AI Wiki (https://aiwiki.ai), the free encyclopedia of artificial intelligence. Reuse freely with attribution to "AI Wiki (aiwiki.ai)".

*See also: [Custom GPTs](/wiki/custom_gpts), [GPT Store](/wiki/gpt_store), [ChatGPT](/wiki/chatgpt), and [OpenAI](/wiki/openai)*

**Programming Custom GPTs** are no-code, specialized versions of [ChatGPT](/wiki/chatgpt) that users configure to write, debug, review, explain, and teach code, published in the Programming category of the [GPT Store](/wiki/gpt_store). They are one of the original category sections of the store, which [OpenAI](/wiki/openai) opened on January 10, 2024, and they range from general multi-language coding assistants to repository-aware tools, language-specific helpers, diagram generators, and Socratic code tutors.[1][2] Programming is among the most active corners of the store: by mid 2024 the two best-known coding GPTs, Grimoire and Code Copilot, had each passed roughly 2 million downloads, according to Originality.AI.[3]

This page is a category landing page. It lists the most notable programming GPTs that have been verified through the official ChatGPT GPT page (`chat.openai.com/g/<id>` or `chatgpt.com/g/<id>`) and well-known third-party trackers such as gptstore.ai and featuredgpts.com.

## What are programming Custom GPTs?

A [Custom GPT](/wiki/custom_gpts) is a tailored version of [ChatGPT](/wiki/chatgpt) built with the [GPT Builder](/wiki/gpt_builder), the no-code creation tool that [OpenAI](/wiki/openai) introduced at its first DevDay on November 6, 2023. As OpenAI put it in the launch announcement, "GPTs are a new way for anyone to create a tailored version of ChatGPT to be more helpful in their daily life, at specific tasks, at work, or at home."[4] No programming is needed to make one: "Anyone can easily build their own GPT," OpenAI wrote, and creation is "as easy as starting a conversation, giving it instructions and extra knowledge, and picking what it can do."[4]

A builder configures the GPT with three pieces of customization: a set of instructions that shape its behavior, optional knowledge files, and optional Actions that call external APIs.[4] Once published, the GPT runs on top of [GPT-4](/wiki/gpt-4), GPT-4 Turbo, or, more recently, GPT-4o and later models.[4][5]

A GPT lands in the Programming category when the creator chooses that category at publish time and when its instructions and Actions point at coding tasks. In practice, programming GPTs do one or more of the following:

- Generate code in a specific language or stack (Python, JavaScript, TypeScript, Go, Rust, Solidity, SQL, and others).
- Explain code, walk through algorithms, or tutor learners through exercises.
- Review and refactor existing code for performance, readability, or security.
- Connect to external developer tools through Actions, for example GitHub repositories, deployment platforms, or diagram services.
- Convert between formats: image mockup to HTML, schema to ORM model, design to component code.

Many programming GPTs combine the built-in Code Interpreter (also called Advanced Data Analysis) and file uploads so the assistant can run Python sandboxed on OpenAI's servers, read uploaded source files, and return generated artifacts.[5]

## How do programming GPTs fit in the GPT Store?

The GPT Store is organized into top-level sections that, at launch, included Top Picks, DALL-E, Writing, Productivity, Research and Analysis, Programming, Education, and Lifestyle.[2] OpenAI reported that users had created more than 3 million custom GPTs in the two months between the DevDay announcement and the store's opening; an April 2024 analysis by SEO.AI counted roughly 159,000 of those as public GPTs browsable in the store.[1][2] The Programming section surfaces both first-party GPTs from [OpenAI](/wiki/openai) and third-party GPTs built by independent developers and companies. Anyone with a verified builder profile and a paid ChatGPT plan can publish a GPT here.[2]

Users reach a Programming GPT in three ways: through a direct link of the form `chatgpt.com/g/g-<id>`, through the Explore GPTs picker inside ChatGPT, or through the Programming category browse page. Once a GPT is opened, the conversation runs in the regular ChatGPT chat interface, with the GPT's custom instructions injected into the system prompt and any Actions available as callable tools.

Programming GPTs are gated behind a paid plan: ChatGPT Plus, Team, or Enterprise.[2] Free-tier users have been able to use a small number of featured GPTs since the May 2024 rollout of limited GPT access to free accounts, but most coding GPTs still require a paid subscription.[2][4]

## What are the most notable programming Custom GPTs?

The table below lists widely used and well-documented programming GPTs. Conversation counts and ratings are taken from third-party tracker pages (gptstore.ai, featuredgpts.com, gptshunter.com) and from official OpenAI store listings where available. Numbers shift over time and should be treated as approximate.

| GPT | Developer | Focus | Capabilities | Link |
| --- | --- | --- | --- | --- |
| [Grimoire](/wiki/grimoire) | [Mind Goblin Studios](/wiki/mind_goblin_studios) | Full stack web coding from prompts | Generates websites and apps from natural language or image mockups, 20+ hotkey shortcuts, 75 starter projects, Netlify deploy Action, Python tool, file uploads | [chat.openai.com/g/g-n7Rs0IK86](https://chat.openai.com/g/g-n7Rs0IK86-grimoire) |
| [Code Copilot](/wiki/code_copilot_gpt) | promptspellsmith.com | General multi-language coding assistant | Debugging, code review, snippet generation, optimization advice across Python, JavaScript, TypeScript, and other languages | [chat.openai.com/g/g-2DQzU5UZl](https://chat.openai.com/g/g-2DQzU5UZl-code-copilot) |
| [Code Tutor](/wiki/code_tutor) | Khan Academy | Learning to code | Socratic questioning that guides learners to the answer rather than writing the code; branded as Khanmigo Lite | [chat.openai.com/g/g-HxPrv1p8v](https://chat.openai.com/g/g-HxPrv1p8v-code-tutor) |
| [Python](/wiki/python_gpt) | Nicholas Barker | Advanced Python work | Code review and refactoring against PEP 8, algorithm design, data analysis, machine learning scaffolding, debugging | [chat.openai.com/g/g-cKXjWStaE](https://chat.openai.com/g/g-cKXjWStaE-python) |
| [Wolfram](/wiki/wolfram_gpt) | Wolfram Research | Math, science, and computational coding | Calls Wolfram Alpha and the Wolfram Language for accurate math, symbolic computation, curated data, and code execution | [chat.openai.com/g/g-0S5FXLyFN](https://chatgpt.com/g/g-0S5FXLyFN-wolfram) |
| [ChatPRD](/wiki/chatprd) | Claire Vo | Product specs for engineering teams | Drafts and improves product requirement documents, coaches on roadmap and stakeholder questions, custom personas | [chat.openai.com/g/g-G5diVh12v](https://chatgpt.com/g/g-G5diVh12v-chatprd-ai-for-product-managers) |
| [WebGPT](/wiki/webgpt) | plugin.wegpt.ai | Web access plus no-code building | Browses the web through Web Requests, builds in no-code playgrounds, calls external APIs through Actions | [chat.openai.com/g/g-9MFRcOPwQ](https://chat.openai.com/g/g-9MFRcOPwQ-webgpt) |
| [Diagrams: Show Me](/wiki/diagrams_show_me) | helpful.dev | Software diagrams | Sequence, ERD, flowchart, timeline, and architecture diagrams using Mermaid and PlantUML, returns editable source | [chat.openai.com/g/g-5QhhdsfDj](https://chat.openai.com/g/g-5QhhdsfDj-diagrams-show-me) |
| [Whimsical Diagrams](/wiki/whimsical_diagrams) | Whimsical (Kaspars Dancis) | Visual planning for engineers | Flowcharts, mind maps, sequence diagrams, links back to Whimsical for further editing | [chat.openai.com/g/g-vI2kaiM9N](https://chatgpt.com/g/g-vI2kaiM9N-whimsical-diagrams) |
| [AskTheCode](/wiki/askthecode) | askthecode.ai | GitHub repository Q and A | Reads repo structure, commit history, files, and issues through GitHub Actions; supports private repos with user auth | [chat.openai.com/g/g-3s6SJ5V7S](https://chat.openai.com/g/g-3s6SJ5V7S-askthecode) |
| [AskYourCode](/wiki/askyourcode) | askyourcode.ai | Whole codebase chat | Indexes uploaded source, returns code maps, summaries, and snippets in response to natural language queries | [chat.openai.com/g/g-lZd4pBo59](https://chat.openai.com/g/g-lZd4pBo59-askyourcode) |

[Sources: 1, 3, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]

## Profiles

### Grimoire

Grimoire is the most cited programming GPT in independent rankings of the store. It was built by Mind Goblin Studios, the developer behind the GPTavern collection, and positions itself as a coding wizard for what its creator calls Prompt-gram: building software by describing it in plain English. The GPT ships with more than 20 hotkey shortcuts for common coding flows and around 75 starter projects, ranging from landing pages to mini games. It has the Python tool enabled so it can run scripts, accepts file uploads, and includes a Netlify Action for one-click site deployment. Originality.AI recorded Grimoire at more than 2 million downloads in 2024, making it one of the highest-traffic GPTs in any category.[3][6]

### Code Copilot

Code Copilot is the most popular general-purpose coding GPT after Grimoire, and Originality.AI likewise put it above 2 million downloads.[3] It is built by an independent developer at promptspellsmith.com and aims at experienced programmers rather than learners. Its system prompt steers it toward concise, production-grade code, with built-in steps for debugging, code review, and performance optimization. Featuredgpts.com lists Code Copilot at roughly 72,000 users with a 4.2 star rating; the GPT is not affiliated with GitHub's separate product also called Copilot.[7]

### Code Tutor

Code Tutor is one of the few programming GPTs published by a major organization rather than an individual, and it was one of the partner GPTs OpenAI featured when the store launched.[2] Khan Academy released it as Khanmigo Lite, a slimmed-down version of the [Khanmigo](https://www.khanmigo.ai/) tutoring platform. Unlike most coding GPTs, Code Tutor deliberately refuses to write working code for the user. It uses Socratic questioning to draw the answer out of the learner, suggesting pseudo-code, asking clarifying questions, and pointing back at Khan Academy lessons. Featuredgpts reports a 4.4 star rating across more than 3,200 reviews.[8]

### Python

The GPT simply titled Python, built by Nicholas Barker, is aimed at production Python work. It is tuned for canvas and notebook output, runs Python through the Code Interpreter sandbox, and provides PEP 8 review, debugging help, and algorithm design. It has accumulated more than 55,000 users at a 4.2 star rating and is one of the most frequently linked Python tutoring GPTs on third-party rankings.[9]

### Wolfram

The Wolfram GPT is the official successor to the Wolfram Alpha ChatGPT plugin from March 2023, after [OpenAI](/wiki/openai) retired its plugin system in April 2024 (new plugin conversations were blocked after March 19, 2024, and existing plugin chats shut down on April 9, 2024).[18] The GPT routes computation, math, and science questions through [Wolfram Alpha](/wiki/wolfram_alpha) and the Wolfram Language, returning exact symbolic answers and visualizations. For programming specifically, it is useful for verifying numerical libraries, generating reference data, and writing or executing Wolfram Language code. Stephen Wolfram has written extensively about why pairing the model with a symbolic engine produces more reliable math than the model on its own.[10][11]

### ChatPRD

ChatPRD was created by Claire Vo over Thanksgiving week in 2023 and quickly became one of the most-talked-about side projects of the early GPT Store era. It does not write code directly; it writes the spec that engineers will code from. The GPT drafts and refines product requirement documents, gives feedback on a draft, and provides coaching on roadmap and stakeholder management. ChatPRD has since grown into a standalone product at chatprd.ai with paid tiers, but the original GPT remains available in the store. Vo has said the project produced six-figure revenue while she was running product and engineering organizations at LaunchDarkly.[12]

### WebGPT

WebGPT (the Custom GPT, not the 2021 OpenAI research project of the same name) is built by plugin.wegpt.ai. It combines web browsing through the Web Requests Action with a no-code playground for building small products and an API-calling layer. It was one of the earlier GPTs to top the Programming category and is often used for quick API exploration and scraping tasks.[13]

### Diagrams: Show Me and Whimsical Diagrams

These two GPTs cover diagramming work that often comes up alongside code. Diagrams: Show Me, built by helpful.dev, generates Mermaid and PlantUML diagrams (sequence, ERD, flowchart, mindmap, timeline) and returns the source so the engineer can edit it. Whimsical Diagrams, built by Whimsical's founder Kaspars Dancis, focuses on flowcharts, mind maps, and sequence diagrams, with hand-off back to Whimsical's own canvas for further editing. Both are used heavily in software design discussions and onboarding documentation.[14][15]

### AskTheCode and AskYourCode

These two are repository-aware GPTs that fill a gap the base ChatGPT cannot: pulling actual code out of a project before answering. AskTheCode connects to GitHub through an Action, can read file structure, commit history, and issues, and supports private repos when the user authenticates. AskYourCode takes a different angle: instead of pulling from GitHub, it indexes uploaded source files and returns code maps and summaries from that index. AskTheCode reports around 3,300 reviews at a 4.1 star rating.[16][17]

## How do you build a coding GPT?

The [GPT Builder](/wiki/gpt_builder) is the tool every Custom GPT in the Programming category is built with. It is itself a GPT, accessible at `chatgpt.com/gpts/editor` for paid users, and it offers two modes: a conversational Create flow that drafts the GPT through dialogue, and a Configure view that exposes raw instructions, knowledge file uploads, capability toggles (Browsing, Python, DALL-E, Canvas), and the Actions builder for hooking up external APIs.[5]

For programming GPTs specifically, three configuration choices matter most:

1. Whether to enable the **Python tool** (also called Code Interpreter or Advanced Data Analysis), which lets the GPT actually run code in a sandbox.
2. Whether to ship **knowledge files**, often used to inject coding standards, framework docs, or a project's own architecture notes into the system prompt.
3. Whether to define **Actions**, which is how GPTs like AskTheCode reach GitHub, Grimoire reaches Netlify, or WebGPT reaches arbitrary REST endpoints.

## What are the limitations of programming GPTs?

Programming GPTs share most of the constraints of plain [ChatGPT](/wiki/chatgpt): they can hallucinate APIs that do not exist, mix up version-specific syntax, and miss subtle bugs in larger code. Three issues are specific to the Custom GPT layer:

- **No persistent memory across chats by default.** Each conversation starts fresh, so a GPT cannot remember your codebase between sessions unless you re-upload files or use Actions that fetch from a known source.
- **Context window limits.** A GPT runs on whatever model OpenAI has assigned to ChatGPT at the moment, with whatever context limit applies. Large codebases must be summarized or queried piece by piece.
- **Action reliability.** Third-party Actions can return errors, rate limits, or stale data. GPTs that depend on a single API (Netlify, GitHub, a deployment platform) inherit that API's outages.

Another common complaint, especially for the more popular GPTs, is that the system prompt has leaked publicly. The repositories at github.com/LouisShark/chatgpt_system_prompt and github.com/linexjlin/GPTs include extracted prompts for Grimoire, Code Tutor, Whimsical Diagrams, and others. OpenAI considers leaked instructions a known limitation: any user who can talk to the GPT can ask it to reveal its instructions, and only weak defenses against that are possible.

## See also

- [Custom GPTs](/wiki/custom_gpts)
- [GPT Store](/wiki/gpt_store)
- [GPT Builder](/wiki/gpt_builder)
- [ChatGPT](/wiki/chatgpt)
- [OpenAI](/wiki/openai)
- [Programming with ChatGPT](/wiki/programming_with_chatgpt)
- [Programming ChatGPT Plugins](/wiki/programming_chatgpt_plugins)
- [Software Development ChatGPT Plugins](/wiki/software_development_chatgpt_plugins)
- [Web Development ChatGPT Plugins](/wiki/web_development_chatgpt_plugins)

## References

1. SEO.AI. GPT Store Statistics & Facts: Contains 159,000 of the 3 million created GPTs. April 24, 2024. https://seo.ai/blog/gpt-store-statistics-facts
2. OpenAI. Introducing the GPT Store. January 10, 2024. https://openai.com/index/introducing-the-gpt-store/
3. Originality.AI. The Era of Tailored Intelligence: Charting the Growth and Market Impact of Custom GPTs. https://originality.ai/blog/gpts-statistics
4. OpenAI. Introducing GPTs. November 6, 2023. https://openai.com/index/introducing-gpts/
5. OpenAI Help Center. GPT Builder. https://help.openai.com/en/articles/8770868-gpt-builder
6. Mind Goblin Studios. GPTavern. https://gptavern.mindgoblinstudios.com/
7. FeaturedGPTs. Code Copilot review. https://www.featuredgpts.com/gpts/code-copilot/
8. FeaturedGPTs. Code Tutor review. https://www.featuredgpts.com/gpts/code-tutor/
9. FeaturedGPTs. Python GPT review. https://www.featuredgpts.com/gpts/python-gpt/
10. Wolfram, Stephen. ChatGPT Gets Its Wolfram Superpowers! March 2023. https://writings.stephenwolfram.com/2023/03/chatgpt-gets-its-wolfram-superpowers/
11. Wolfram Research. Wolfram GPT page. https://gpt.wolfram.com/
12. ChatPRD. https://www.chatprd.ai/ and the Command AI profile of Claire Vo. https://www.command.ai/blog/claire-vo-chatprd/
13. GPT Store listing for WebGPT. https://chat.openai.com/g/g-9MFRcOPwQ-webgpt
14. FeaturedGPTs. Diagrams: Show Me review. https://www.featuredgpts.com/gpts/diagrams-show-me/
15. FeaturedGPTs. Whimsical Diagrams review. https://www.featuredgpts.com/gpts/whimsical-diagrams/
16. FeaturedGPTs. AskTheCode review. https://featuredgpts.com/gpts/askthecode/
17. GPT Store. AskYourCode listing. https://gptstore.ai/gpts/lZd4pBo59-askyourcode
18. TechCrunch and OpenAI Help Center on ChatGPT plugins deprecation: new plugin conversations ended March 19, 2024, and existing plugin chats shut down April 9, 2024. https://help.openai.com/en/articles/8988022-winding-down-the-chatgpt-plugins-beta