AI Tool WatchBuild Reusable AI Workflows
Can create reusable assistants, agents, GPTs, gems, skills, or other repeatable AI setups.
This page tracks AI tools that currently support build reusable ai workflows. Unlike marketing claims, inclusion here requires verified functionality. As of May 2026, 4 products support this, and support has changed in recent months.
Definition
What counts
- building a named reusable assistant
- packaging instructions or tools for repeated use
- creating no-code or low-code agent workflows
What doesn't count
- one-off prompts in a single chat
- temporary settings that do not create a reusable artifact
Product Availability (4 products)
ChatGPT
Custom GPTs + Actions
Custom GPTs let you create specialized AI assistants with custom instructions, knowledge files, and **Actions for external API integrations**. Actions replaced the old plugin system in April 2024. **Anyone can use public GPTs**, but creating your own with Actions requires Plus ($20/mo) or higher.
Access: paid
| Plan | Available | Notes |
|---|---|---|
| Free | ✓ | |
| Go | ✓ | |
| Plus | ✓ | |
| Pro | ✓ | |
| Team | ✓ | |
| Enterprise | ✓ |
Surfaces: Windows macOS iOS Android web API
Verified: 2026-03-15
Claude
Skills
Skills are modular folders of instructions and resources that Claude can load on demand to perform specialized tasks—like creating Office documents or running workflows. **Prebuilt skills are available on all plans including free** (added Feb 2026 with Sonnet 4.6). **Custom skills require Pro and above.**
Access: paid
| Plan | Available | Notes |
|---|---|---|
| Free | ✓ | |
| Pro | ✓ | |
| Max 5x | ✓ | |
| Max 20x | ✓ | |
| Team | ✓ | |
| Enterprise | ✓ |
Surfaces: Windows macOS Linux iOS Android web terminal API
Verified: 2026-04-03
Microsoft Copilot
Agent Builder
Agent Builder lets you create custom AI agents using natural language—no coding required. **Requires M365 Copilot ($30/user/mo)** for full access. As of March 2026, **agents can call other agents as tools** (multi-agent coordination), and new agent surfaces include Outlook, OneDrive, and Teams communities.
Access: paid
| Plan | Available | Notes |
|---|---|---|
| Free | ✗ | |
| Copilot Pro | ✗ | |
| M365 Copilot | ✓ | |
| Copilot Chat (M365 commercial) | ✓ |
Surfaces: Windows macOS web API
Verified: 2026-03-22
Gemini
AI Studio
AI Studio is Google's developer playground for Gemini models—test prompts, get API keys, and prototype before building. **Completely free** with generous rate limits.
Access: free
| Plan | Available | Notes |
|---|---|---|
| Free | ✓ | |
| AI Pro | ✓ |
Surfaces: Windows macOS web API
Verified: 2026-03-08
Gems (Custom Chatbots)
Gems are custom AI experts you create for specific tasks. **Now free for all users**—create premade or custom Gems at no cost. AI Pro gets higher limits and sharing features.
Access: free
| Plan | Available | Notes |
|---|---|---|
| Free | ✓ | |
| AI Pro | ✓ |
Surfaces: Windows macOS iOS Android web API
Verified: 2026-03-08
Also Known As
custom GPTs, AI workflows, custom bots, reusable prompts, AI automation builder