AI chat, research & character dialogue
Compare free limits and billing terms across general conversational AI, cited research search, and character chat tools.
Services compared5
| Compared item | Product typeGeneral-purpose conversational AI assistant ProviderAnthropic PlanFree | Product type1 year free multimodal AI for college students ProviderGoogle PlanStudent Offer (Google AI Plus) | Product typeCitation-backed AI research · search assistant ProviderLiner PlanFree | Product typePersonal AI agent ProviderPickle PlanFree + Invite Reset Ticket | Product typeOpen-source character chat frontend ProviderRisuAI PlanOpen Source BYOK |
|---|---|---|---|---|---|
| First-month payment | USD 0 / month | USD 0 / month | USD 0 / month | USD 0 / month | USD 0 / month |
| Renewal payment | USD 0 / month | USD 4.99 / month | USD 0 / month | USD 0 / month | USD 0 / month |
| Free tier | Free basic chat included, with $20/mo paid plan option | 1 year free of Google AI Plus (2x Gemini limits · 400 GB storage) | Unlimited advanced search · 1 file upload/day (up to 25MB) · Deep Research | Free daily quota for Korean accounts (resets at 04:00 KST) · 1 full reset ticket upon onboarding | Open-source character chat with CC 3.0 assets and external LLM integration |
| Eligibility | New · existing accounts | College students in 140+ regions outside 7 excluded countries including the US (ends 2026-12-31) | New · existing free accounts (includes ads in responses) | Korean accounts aged 18+ (invite policy follows in-app notice) | New · existing accounts |
| Card required | No payment method required | Valid payment method required upon sign-up | No payment method required | No card required (reset tickets available as optional purchase) | No payment method required for the frontend itself |
| Overage | Wait until reset time when session message limit is reached | Auto-billed at $4.99/mo (in local currency) if not canceled before the 1-year period ends | Paid upgrade required after using 1 daily file upload and limited credits | No paid subscription · wait for reset or use a ticket when limit is reached | Billed according to your connected external LLM API provider's rates |
| Officially checked | |||||
| Check the official source | Official page ↗Official source | Official page ↗Official source | Official page ↗Official source | ||
| Details and source records | Unconfirmed items0 Details & save | Unconfirmed items0 Details & save | Unconfirmed items0 Details & save | Unconfirmed items0 Details & save | Unconfirmed items0 Details & save |
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