Clay
AI Agents
Infrastructure for data, agentic workflows, and GTM plays
- GTM Plays
- Data Marketplace
- Agent Systems
Freemium
Best CustomGPT Alternatives in 2026
CustomGPT: Empowers businesses with custom GPTs built from their content. Here are 12 alternatives — compare pricing, free plans and API access side by side.
CustomGPT vs. alternatives
| Tool | Category | Pricing | Starting at | Free plan | API | Open source |
|---|---|---|---|---|---|---|
| AI Agents | Freemium | — | |||
| AI Agents | Freemium | $167/month | |||
 | AI Agents | Freemium | — | |||
 | AI Agents | Freemium | — | |||
 | AI Agents | Freemium | — | |||
 | AI Agents | Free | — | |||
 | AI Agents | Paid | €29/month | |||
 | AI Agents | Paid | — | |||
 | AI Agents | Freemium | — | |||
 | AI Agents | Freemium | — | |||
 | AI Agents | Paid | — | |||
 | AI Agents | Paid | $8/month | |||
 | AI Agents | Paid | $99/month |
Top CustomGPT alternatives
Google Gemini
AI Agents
AI assistant for writing, planning, and brainstorming
Freemium
CREAO
AI Agents
Builds AI agents that run your work 24/7, integrating with existing tools.
- AI Agents
- Automation
- Productivity
Freemium
Meta Muse
AI Agents
Your personal AI agent that gets things done.
- Task Automation
- AI Agent
- Proprietary Model
Freemium
Plurai
AI Agents
Production-ready AI agents with simulation, evaluation, and protection.
- AI Agents
- Simulation
- Guardrails
Free
Yasmine Works
AI Agents
AI coworker in Slack with tenant-scoped runtime and encrypted state
- AI Agents
- AI Assistants
- Slack Integration
Paid
Groas
AI Agents
Automates and optimizes search advertising using AI agents.
Paid
Grok
AI Agents
AI assistant for chat, image creation, coding, and real-time web/X data access.
- Real-Time Data
- Code Generation
- Multilingual Support
Freemium
Kollab
AI Agents
AI workspace for team collaboration and automation with multiple models and apps
- AI Agent Workspace
- AI Creation Workspace
- Content Workflow Automation
Freemium
LangWatch
AI Agents
Tests and evaluates AI agents to improve reliability and governance.
Paid
Ojin
AI Agents
Builds human-like AI agents with real-time interaction and sub-200ms response times.
- Human Agents
- Cost-Efficiency
- Human Presence
Paid
Scribble Network
AI Agents
Monitors AI visibility and tracks citations for brands.
- AI Visibility
- Citation Readiness
- Creator Bounties
Paid