plai.chatThe Duck.ai Alternative
No-Login AI Chat Compared: Duck.ai, ChatGPT, PLAI
Duck.ai and logged-out ChatGPT both let you chat without an account. PLAI.chat does too, with free models we picked and tested, and adds an optional path to GPT, Gemini, Grok, Claude and 300+ other models after a free sign-in, on credit or with plai Plus. Here is how the three compare, with sources.
- No signup
- 20 free messages/day
- No card
- Chats stay in your browser
No signup for the free tier. Open the page and chat. Want unlimited chat on free models (fair use)? plai Plus €4.99/mo →
At a Glance
- All three let you start chatting without creating an account (ChatGPT only in supported countries, not yet in Europe except the UK)
- Duck.ai anonymizes your chats with third-party models and offers six free models; more with a DuckDuckGo subscription
- ChatGPT logged out gives you one conversation at a time and doesn't save it
- PLAI.chat gives 20 free messages a day on tested free models, keeps chats in your browser, and lets you add premium models after a free sign-in
We pick the models. You just ask.
Hundreds of AI models, one chat box. We test them and keep the best in our tiers — no need to shop around ChatGPT, Claude, Gemini or Grok. Ask, and get an answer.
Tested on real prompts
We benchmark new models for quality, speed and price and keep the winners. No vendor lock-in.
Three tiers, one tap
FREE for everyday questions (no signup). BALANCED and PREMIUM run top models like GPT, Gemini and Grok.
Automatic failover
If a model is down, the next one in the tier answers. Need a specific model? Type @claude, @deepseek…
Duck.ai vs ChatGPT vs PLAI.chat — Comparison
Facts checked October 19, 2026 against DuckDuckGo's Duck.ai help pages, Duck.ai usage limits and OpenAI's help article on using ChatGPT before creating an account.
| Feature | PLAI.chat | Duck.ai | ChatGPT (logged out) |
|---|---|---|---|
| Use without an account | Yes | Yes | In supported countries (not yet in Europe except the UK) |
| Free models | Free models we picked, tested on real prompts | Claude 4.5 Haiku, Mistral Small 4, GPT-6 Luna, GPT-5.4 mini, gpt-oss-120b, Gemma 4 31B | Not listed for logged-out use |
| Daily free limit | 20 messages/day per browser | Daily limit; exact count not published | Not stated |
| Chat history | Kept in your browser | Recent Chats stored locally on your device | Not saved logged out; one conversation at a time |
| More models | After a free sign-in: GPT, Gemini, Grok, Claude, DeepSeek and 300+ others, on credit or with plai Plus | GPT-5.6 Terra, Claude Sonnet 4.6, Claude Opus 4.8, GPT-5.6 Sol with a DuckDuckGo subscription | With an OpenAI account and plan |
| Slack & Microsoft Teams | Yes via Plug and AI | Not stated | Not part of logged-out use |
Which One Should You Use?
Duck.ai: privacy-first chat
DuckDuckGo anonymizes your conversations with third-party models and says it doesn't store your prompts or train on your data (source). A good pick if anonymization by a privacy company matters most.
ChatGPT: a quick OpenAI answer
Logged out, ChatGPT is fine for a single quick conversation in supported countries. To save chats or use more features you need an OpenAI account.
PLAI.chat: free now, more models later
Start with no account on free models we picked. When you need more, sign in for free and use GPT, Gemini, Grok, Claude and 300+ other models on credit or with plai Plus. Curious what "anonymous" means here? See anonymous AI chat.
Go unlimited with plai Plus — €4.99/month
Unlimited chat on our free models (fair use, up to 10,000 messages/month) that usually keeps chatting even when the shared free pool is busy, within fair use, plus premium models and image generation from a monthly allowance. Cancel anytime.
| Feature | Free | plai Plus |
|---|---|---|
| Messages per day | 20/day, no sign-up needed | Unlimited (fair use) |
| Free account (10 seconds, no card) | 1,000+ extra messages or up to 100 images on a one-time welcome credit, 300+ models on demand | Included |
| When the free pool is busy | Usually still answered (backup model) | usually keeps working (fair use) |
| BALANCED (GPT Luna, Gemini Flash) | on the $1 welcome credit, then pay per use | from a monthly allowance |
| PREMIUM & Claude (@claude) | Pay per use after a top-up | included, from a monthly allowance |
| Images | on the free $1 welcome credit | from a monthly allowance |
| Price | €0, no card | €4.99/mo |
Billed in EUR, VAT included. Free email sign-in, then secure Stripe checkout.
Frequently Asked Questions
Is PLAI.chat a good Duck.ai alternative?
Yes, if you want a no-login AI chat with tested model tiers and an upgrade path. Like Duck.ai, PLAI.chat works without an account: open the page and chat on free models we picked, up to 20 messages per day. After a free email sign-in, GPT, Gemini, Grok, Claude, DeepSeek and 300+ other models are available on credit or with plai Plus. If anonymization by a privacy company is your priority, Duck.ai is a strong choice too.
Does Duck.ai require an account?
Not for the free version. DuckDuckGo describes Duck.ai as free to use with a daily usage limit; only subscribers connect a DuckDuckGo subscription (Duck.ai Settings, I Have a Subscription) to unlock additional models and higher limits.
Which models are free on Duck.ai?
As listed on DuckDuckGo's help pages (checked October 19, 2026): Claude 4.5 Haiku, Mistral Small 4, GPT-6 Luna, GPT-5.4 mini, gpt-oss-120b and Gemma 4 31B. GPT-5.6 Terra, Claude Sonnet 4.6, Claude Opus 4.8 and GPT-5.6 Sol require a DuckDuckGo subscription.
Can I use ChatGPT for free without an account?
In many countries, yes. OpenAI lets you try ChatGPT at chatgpt.com before creating an account, but logged out you can only have one conversation at a time and chats are not saved. OpenAI says this is not yet available in Europe, except the UK.
What are the daily limits?
PLAI.chat's free tier allows 20 messages per day per browser on free models. Duck.ai has a daily limit but does not publish an exact message count; DuckDuckGo says lower-cost models use less of the limit per prompt than higher-cost ones. OpenAI does not state a message count for the logged-out ChatGPT experience on its help page.
Where are my chats stored?
PLAI.chat keeps chat history in your browser. Duck.ai stores Recent Chats locally on your device, not on DuckDuckGo servers. Logged-out ChatGPT does not save your chat history; a chat stays available only for the current browser session. In every case your prompts are still sent to the AI model provider that answers them.