Best for · Research AI tools for research 5 tools with monthly plans from $7.99–$20 a month. From 5 AI tools . The most-used are compared below, then every tool A–Z.
All 5 at a glance List price before tax, in each vendor’s currency Tool Free Cheapest paid Top tier Team / seat Limit on cheapest plan Last change Link Cl ClaudeYes $20Pro $200Max 20× $25 At least 5× Free per 5-hour session, plus a weekly cap 09 Apr 25 Pricing → Gp ChatGPTYes $8Go $500Pro $500 $25 Usage limits per 5 hours; weekly limits may apply — Pricing → Ge GeminiYes $7.99AI Plus $199.99AI Ultra 20× — 2× the free limits — Pricing → Px PerplexityYes $20Pro $200Max $40 — — Pricing → Gk GrokYes $8Plus $200Ultra $30 Base usage, shared across Grok, X and Cursor — Pricing →
Every tool for research 5 tools · A–Z
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