The complete Chromium browser with basic AI functions (page summary, voice mode, shopping assistant, Deep Research) is completely free and has no usage limit (globally available starting October 2, 2025); however, agent tasks that consume quota (such as auto-form filling, booking, and emailing) have limited quota in the free plan.
US$0: 40 standard-model uses per day on a shared quota across Claude 4.5 Haiku / Gemini 3.1 Flash-Lite / GPT-5.4 mini, limited trial of image and video generation, limited trial of ChatPDF, time-limited AI Agent trial, up to 3 logged-in devices (read directly in a browser from the Traditional Chinese monica.im/pricing on 2026-08-09)
Cheapest paid plan: US$8.3 / mo（Annual plan (monthly avg.)）
US$99/year billed annually (about US$8.3/month); 5,000 base-model messages + 200 advanced-model messages per month, 1,500 premium credits, 5 devices. The official site doesn't display a monthly-billed list price (2026-08-09 tested: the toggle switch had no effect)
Max
US$16.6 / mo（Annual plan (monthly avg.)）
US$199/year billed annually (≈ US$16.6/month), a limited-time 33% off, list price US$299/year; unlimited use of standard + premium models, 4,500 premium credits, 5 devices. Formerly named Unlimited; officially still marked as in beta. Monthly list price not shown on the official site
Ultra
US$82.9 / mo（Annual plan (monthly avg.)）
Annual billing US$995/year (≈US$82.9/month), 17% savings with annual billing; unlimited use of standard + advanced models, 20,000 advanced points, 10 devices. The monthly list price is not shown on the official site
Which one should you pick?
Both offer a free plan. Compare paid tiers against your needs.
Monica has no public paid plan; Comet starts at about US$5 / mo.
FAQ
Is there a free version of Comet?
Yes. The complete Chromium browser with basic AI functions (page summary, voice mode, shopping assistant, Deep Research) is completely free and has no usage limit (globally available starting October 2, 2025); however, agent tasks that consume quota (such as auto-form filling, booking, and emailing) have limited quota in the free plan.
How much does Comet cost?
The cheapest is the plan from Comet named Comet Plus, at about US$5 / mo.
Does Comet support Chinese?
Comet only partially supports Chinese.
Is there a free version of Monica?
Yes. US$0: 40 standard-model uses per day on a shared quota across Claude 4.5 Haiku / Gemini 3.1 Flash-Lite / GPT-5.4 mini, limited trial of image and video generation, limited trial of ChatPDF, time-limited AI Agent trial, up to 3 logged-in devices (read directly in a browser from the Traditional Chinese monica.im/pricing on 2026-08-09)
How much does Monica cost?
The cheapest is the plan from Monica named Pro, at about US$8.3 / mo（Annual plan (monthly avg.)）.
Does Monica support Chinese?
Monica offers full Chinese interface support.
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