Best Duck.ai alternatives in 2026
Duck.ai is listed under AI Assistants (free plan, paid from $9.99/month). The closest alternatives on Finder Atlas in 2026 are Character.AI, ChatGPT and DeepSeek, with 5 more below.
8tools · pricing and features checked against each vendor’s site
Quick picks
- Closest overall
- Character.AI
Freemium · Free plan, paid from $4.99/month
- With an API
- DeepSeek
Freemium · Free plan, paid from $0.15/1M input tokens
Duck.ai alternatives, compared
Character.AI
FreemiumAI Assistants
Chat, call and role-play with millions of user-made AI characters
- Free tier with unlimited messaging and character creation
- Large catalog of user-created characters
Free plan, paid from $4.99/month · Web, iOS, Android · Mobile app
AI Assistants
OpenAI's AI assistant for writing, research, coding, image generation and voice chat
- One assistant covers text, voice, images, file analysis, search and coding
- Free tier lets users try the service without a card
Free plan, paid from $8/month · Web, iOS, Android · Mobile app
DeepSeek
FreemiumAI Assistants
Free AI chat app and low-cost API running DeepSeek's open-weights V4 models
- Web chat and mobile apps are free
- API output costs from $0.60 per 1M tokens (Flash, off-peak), well below most frontier providers
Free plan, paid from $0.15/1M input tokens · Web, iOS, Android · API · Mobile app
Google Gemini
FreemiumAI Assistants
Google's AI assistant for chat, research, image and video creation, and Workspace apps
- A capable free tier that includes Deep Research, Gemini Live, image generation and Canvas
- Integration with Gmail, Docs, Drive, Maps and YouTube for people already in Google's ecosystem
Free plan, paid from $4.99/month · Web, iOS, Android · API · Mobile app
AI Assistants
xAI's AI assistant with live X and web search, image and voice tools
- Searches both X posts and the web for current information
- Free tier available without a subscription
Free plan, paid from $8/month · Web, iOS, Android · API · Mobile app
Lumo
FreemiumAI Assistants
Privacy-first AI assistant from Proton with zero-access encrypted chats and no logging
- Zero-access encryption on saved chats, with a stated no-logging policy.
- Open-source code and open-source models that can be inspected.
Free plan, paid from $12.99/month · Web, iOS, Android · Mobile app
Microsoft Copilot
FreemiumAI Assistants
Microsoft's AI assistant for chat, writing and research across web, apps and Microsoft 365
- Free tier with chat, image creation and voice on web, desktop and mobile
- Built into Word, Excel, PowerPoint, Outlook and Teams for Microsoft 365 subscribers
Free plan, paid from $9.99/month · Web, Windows, macOS · Mobile app
Msty
FreemiumAI Assistants
Private AI workspace for chatting with local and online models, with your data under your control
- Permanent free Studio tier that includes local and online model chat and Knowledge Stacks.
- Data stays on the user's device, with zero product telemetry stated.
Free plan, paid from $149/year · Web, macOS, Windows · Mobile app
Frequently asked questions
What is the closest alternative to Duck.ai?
Character.AI. Chat, call and role-play with millions of user-made AI characters. It is freemium (free plan, paid from $4.99/month).
Is there a free alternative to Duck.ai?
Yes. Character.AI is freemium (free plan, paid from $4.99/month). Chat, call and role-play with millions of user-made AI characters
Which Duck.ai alternatives have an API?
DeepSeek, Google Gemini and Grok offer an API.
How are these alternatives chosen?
They share the tool's category and overlap in audiences, tags, pricing model, platforms and API availability. Some are picked by Finder Atlas editors, who add a one-line reason. Ratings come only from reviews on Finder Atlas.
Looking at Duck.ai itself? See its pricing, features and reviews, or browse all AI Assistants tools.