Alternatives · 2026
Best GPT Duel Alternatives in 2026
24 alternatives · 23 with a free plan · Updated
What are the best GPT Duel alternatives?
The best GPT Duel alternatives for AI Chatbot in 2026 are Debate Competitions (practice debate skills by arguing against AI opponents across…, free), Squabble.io (AI agent debate platform where you watch AI agents…, free) and Mia Application (community platform where people share AI prompts, free). 23 of the 24 listed alternatives have a free or freemium plan.
Looking for something other than GPT Duel? Below are 24 alternatives in AI Chatbot, AI Games and Large Language Models (LLMs), 22 of them closely matched, ranked by how much they overlap with GPT Duel. GPT Duel itself is free. Each entry shows what the tool does, what it shares with GPT Duel, its key features and pricing.
What is GPT Duel?
GPT Duel is a platform where different GPT models argue opposing sides of various topics. Users can watch these debates unfold and join in by signing in. The site offers an interactive way to see how different AI systems approach arguments and reasoning.
- Pricing
- Free
Key features of GPT Duel
- Unique and engaging content
- Potential for educational insights into AI behavior
- Interactive user experience
- Limited information provided about the debate topics
- Potential for biased or nonsensical debates
GPT Duel alternatives compared
| Tool | Pricing | Shared with GPT Duel | Match |
|---|---|---|---|
| GPT Duel | Free | — | Original |
| Debate Competitions | Free | AI Chatbot, AI Games, Large Language Models (LLMs), Other | Strong match |
| Squabble.io | Free | AI Chatbot, Large Language Models (LLMs), Other | Strong match |
| Mia Application | Free | AI Chatbot, Large Language Models (LLMs), Other | Strong match |
| Make Custom GPT | Free | AI Chatbot, Large Language Models (LLMs), Other | Strong match |
| OnVerb | Freemium | AI Chatbot, Large Language Models (LLMs), Other | Strong match |
Top 24 alternatives to GPT Duel
- #1
Practice debate skills by arguing against AI opponents across various topics and languages.
In common with GPT Duel: AI Chatbot, AI Games, Large Language Models (LLMs), Other
- Provides a platform for practicing debate skills
- Offers a variety of debate topics
- Allows users to debate against different AI models
Pricing: free
- #2
Squabble.io is an AI agent debate platform where you watch AI agents argue societal issues from opposing sides to explore diverse viewpoints.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- Engaging and interactive learning experience
- Exposure to diverse viewpoints on complex issues
- Convenient and accessible platform for debate practice
Pricing: free
- #3M
A community platform where people share AI prompts, discuss AI topics, and learn from each other.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- Facilitates community interaction around AI
- Provides a platform for sharing and discovering AI prompts
- Offers a space to discuss and learn about AI
Pricing: free
- #4M
A platform to find, compare, and deploy custom GPT models for different projects and use cases.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- Platform to discover
Pricing: free
- #5
OnVerb is an AI chat platform that lets you save custom system prompts and organize conversations across several language models in one place.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- Claude Haiku and Claude Instant
- ChatGPT 4o Mini
- Access to integrated models for OpenAI
Pricing: free plan, paid plans from $19.99
- #6
Free web access to DeepSeek-R1 and DeepSeek-V3, open source AI chatbot models for math, coding and reasoning, with no sign-up needed.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- It offers powerful AI model inference capabilities to improve work and study efficiency
Pricing: free
- #7C
Free chat AI bot powered by Google's Gemini API for various tasks.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- It is based on the Google Gemini API and provides a free chatbot experience
Pricing: free
- #8
DataCamp is an online learning platform with interactive courses in data science, AI, Python, SQL and R for individuals and teams.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- Online platform for learning data science and AI skills with interactive courses
Pricing: free plan, paid plans from $14
- #9D
AI chat app that lets you switch between different language models depending on your task.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
Pricing: free
- #10
An AI platform that combines multiple models to work together and deliver better results.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- It unifies AIs to work as a team
Pricing: free
- #11U
Upstream is a Chrome extension that uses GPT with your open browser tabs as context for focused research and information retrieval.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- Saves time by avoiding manual information searching
- Provides focused and relevant information
- Easy to use with Chrome browser
Pricing: free
- #12U
UnlimitedGPT is a free web-based proxy that gives access to ChatGPT-style chat without signing up for an account.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- Simple and easy to use
- Potentially reliant on the availability and stability of the proxy
- May have slower response times compared to a direct ChatGPT subscription
Pricing: free
- #13
Switch between different GPT model versions in ChatGPT to access specific capabilities and experiment with model behavior.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- Allows users to leverage specific model capabilities
- Enables experimentation with different model versions
- Provides control over the AI model used
Pricing: free
- #14
Poe is an AI chatbot app from Quora that lets you chat with several different AI models in one place.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- Access to multiple AI models in one platform
- Fast and helpful AI chat experience
- Powered by a reputable company (Quora)
Pricing: free
- #15
Free, open-source ChatGPT interface that keeps your data local and private.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- Privacy-focused with local data storage
- User-friendly interface
- Supports ChatGPT-4
Pricing: free
- #16S
Solace is an AI document chat tool that summarizes PDFs, images, and text files, builds mind maps, and answers questions from uploaded content.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- AI-driven platform for document interaction
Pricing: free
- #17
Free AI video chatbot with a talking avatar that holds real-time voice conversations and role-play chats in multiple languages.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- It also supports multiple languages for voice and video chat
Pricing: free
- #18
A personal tech site offering developer tools, blog posts, and HackerNews summaries with a straightforward design.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- Useful tools for developers and system administrators
- Informative blog posts on relevant tech topics
- Easy access to HackerNews summaries
Pricing: free
- #19
AI language partner available 24/7 with voice messaging and customizable learning scenarios.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- Always available for language practice
- Supports voice messaging for realistic conversations
- Offers interactive and customizable scenarios
Pricing: free
- #20
Sourcegraph Cody is an AI code assistant that answers questions and helps edit code using context from your whole codebase.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- Enhances developer productivity with AI assistance
- Provides deep codebase context for better understanding
- Automates repetitive tasks
Pricing: custom quote
- #21
SaaS boilerplate code for AWS with payments, authentication, CI/CD, and AWS Bedrock or OpenAI integration for developers.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- Out-of-the-box code for common SaaS flows (payments
- Serverless architecture results in near-zero AWS costs during development
- AI-ready with integration for AWS Bedrock and OpenAI
Pricing: free
- #22C
Play chess against ChatGPT using a simple drag-and-drop interface.
In common with GPT Duel: AI Chatbot, AI Games, Large Language Models (LLMs), Other
- Play chess against a powerful AI (ChatGPT)
- Simple drag-and-drop interface
- Limited information provided about the AI's chess-playing capabilities
Pricing: free
- #23
Play Wordle against ChatGPT to see who can guess the 5-letter word first.
In common with GPT Duel: AI Chatbot, AI Games, Large Language Models (LLMs), Other
- You have 6 attempts
Pricing: free
- #24
An AI question-and-answer tool built specifically for Qualcomm CE topics, delivering fast answers through simple commands.
In common with GPT Duel: AI Chatbot, Large Language Models (LLMs), Other
- Provides quick answers to questions
- Easy to use with simple commands
- Exclusive to Qualcomm CE
Pricing: free
How we picked these GPT Duel alternatives
We rank tools by how closely they match GPT Duel: tools that share more of its categories rank first, then tools whose main category, tags and description overlap with it, then community votes and views. Pricing type and features come from each product's SoftwareVital listing. Admins can pin or remove tools from this list.
Frequently asked questions
What are the best alternatives to GPT Duel in 2026?
The closest alternatives to GPT Duel are Debate Competitions, Squabble.io, Mia Application, Make Custom GPT and OnVerb. They are ranked by how many categories and tags they share with GPT Duel and how similar their descriptions are, then by community votes and views on SoftwareVital.
What is the closest alternative to GPT Duel?
Debate Competitions is the closest match because it shares AI Chatbot, AI Games and Large Language Models (LLMs) with GPT Duel. It is free.
Are there free alternatives to GPT Duel?
Yes. 23 of the 24 alternatives have a free or freemium plan, including Debate Competitions (free), Squabble.io (free), Mia Application (free), Make Custom GPT (free) and OnVerb (freemium). GPT Duel is free.
Which GPT Duel alternatives are paid or enterprise tools?
Sourcegraph (enterprise) uses paid or enterprise pricing, which usually means more support and admin options for teams.
How does GPT Duel compare to Debate Competitions?
Debate Competitions overlaps with GPT Duel in AI Chatbot, AI Games and Large Language Models (LLMs). Its listed features include provides a platform for practicing debate skills, offers a variety of debate topics and allows users to debate against different AI models. Pricing: free. Open the side-by-side compare page for a full breakdown.
What category is GPT Duel in?
GPT Duel is listed under AI Chatbot on SoftwareVital. Browse that category to see more tools in the same group.