Comparison
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 Gemini in Chrome | 97,99 PLN/mo | ? | Browser extensions |
 Opera AI | not listed | yes | Browser extensions |
 HARPA AI | 55.4 PLN/mo | ? | Browser extensions |
 Sider | not listed | yes | Browser extensions |
 MaxAI | 12 USD/mo | yes | Browser extensions |
 AIPRM | not listed | yes | Browser extensions |
 Monica | 8,3 USD/mo | yes | Chatbots & AI assistants |
 Perplexity | not listed | yes | AI search engines |
Each alternative in short
1. Opera AI
Free, accountless AI assistant built into the Opera browser that answers questions, summarizes tabs and files, and generates images.
Yes, there is a free plan. Free access to Opera AI with no log-in, including the AI image generator and access to OpenAI and Google models.
2. HARPA AI
Chrome extension giving access to many AI models on any web page, for summarizing, writing, research and web automation.
The vendor does not state this clearly on the homepage or pricing page.
3. Sider
AI sidebar and browser agent that chats with multiple AI models, summarizes web pages, and automates browser tasks.
Yes, there is a free plan. The pricing page lists a free tier for translation (basic model) and the Chrome extension itself; the exact free credit allowance is not stated in the text.
4. MaxAI
Browser extension that gives an AI assistant sidebar for reading, writing, summarizing and translating content on any webpage.
Yes, there is a free plan. Unlimited Free chat with the fast free AI model, 3 Pro chats per day, limited file uploads, basic browser features.
5. AIPRM
Browser extension for ChatGPT and Claude offering a library of ready-made prompts and tools to reuse your own prompts.
Yes, there is a free plan. Free version with access to 5,400+ public prompts, usable for an unlimited time; premium plans unlock higher quotas.
6. Monica
All-in-one AI assistant giving access to several leading AI models for chat, writing, translation, research and image creation.
Yes, there is a free plan. Free to add to Chrome as a browser extension, according to the page.
7. Perplexity
AI answer engine giving sourced, real-time answers to questions, with a Computer mode for delegating work.
Yes, there is a free plan. Meta description describes Perplexity as free; plan limits are not stated in the text.
FAQ
What is the best alternative to Gemini in Chrome?
The most popular option in the same category is Opera AI. See the comparison table above.