The official site publishes no concrete usage figures at all for the free tier, and this site does not fill in an estimate. Verification trail (exhausted): grok.com/pricing returns HTTP 200 but the whole page is rendered by JavaScript, so the static HTML contains no plan names or price text, only Stripe price IDs; opening it in a real browser hits a Cloudflare human-verification wall, which we do not bypass; x.ai/grok returned 403 three times in a row (blocked, not 404). What can be confirmed: free use does exist and is US$0, because in the in-app purchase list on the official Apple App Store listing every paid item belongs to the SuperGrok range, so basic chat requires no payment. Third-party felloai.com states plainly that xAI has never published free-tier numbers anywhere, and says the free tier only gets the lighter Grok 4 Mini, includes basic real-time web and X search, has limited voice mode, and that image and video generation were removed from the free tier on 2026-03-19. The widely circulated figure of about 10 messages every 2 hours has no official backing and is not used here. (Verified 2026-08-09)
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$10/month. Price taken from the official listing on the Apple App Store's in-app purchase list (grok.com's pricing page is JS-rendered and the text can't be scraped).
SuperGrok
US$30 / mo
US$30/month. Same source; third-party felloai also lists US$30/month. Annual payment item on App Store lists US$300/year
SuperGrok Plus
US$100 / mo
US$100/month. Same source as above
SuperGrok Heavy
US$300 / mo
US$300/month. Source: same as above
Monica
Plan
Price
What you get
Pro
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; Grok starts at about US$10 / mo.
FAQ
Is there a free version of Grok?
Yes. The official site publishes no concrete usage figures at all for the free tier, and this site does not fill in an estimate. Verification trail (exhausted): grok.com/pricing returns HTTP 200 but the whole page is rendered by JavaScript, so the static HTML contains no plan names or price text, only Stripe price IDs; opening it in a real browser hits a Cloudflare human-verification wall, which we do not bypass; x.ai/grok returned 403 three times in a row (blocked, not 404). What can be confirmed: free use does exist and is US$0, because in the in-app purchase list on the official Apple App Store listing every paid item belongs to the SuperGrok range, so basic chat requires no payment. Third-party felloai.com states plainly that xAI has never published free-tier numbers anywhere, and says the free tier only gets the lighter Grok 4 Mini, includes basic real-time web and X search, has limited voice mode, and that image and video generation were removed from the free tier on 2026-03-19. The widely circulated figure of about 10 messages every 2 hours has no official backing and is not used here. (Verified 2026-08-09)
How much does Grok cost?
The cheapest is the plan from Grok named SuperGrok Lite, at about US$10 / mo.
Does Grok support Chinese?
Grok 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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