AI research assistant for academics
Search and summarise academic papers, extract key findings into structured tables, and trace every claim back to its source. Trusted by researchers at leading universities because it actually cites what it's telling you rather than hallucinating plausible-sounding references. The honest way to do an AI-assisted literature review.
| Directr tier | A | S | S | S |
| Price | Free / From $12/mo | Free (audit) / From $49/mo | Free / From $7/mo | Free / $44/yr |
| Free tier | 5 credits/day | Audit most courses | Free | Limited credits |
| API access | ✗ | ✗ | ✗ | ✗ |
Access courses from Stanford, Google, and 300+ institutions — most auditable for free. Coursera Coach uses AI to answer questions mid-lesson, suggest what to study next, and summarise course material so you can move faster without missing the important parts. The standard route for self-directed professional development.
The world's most-used language learning app — now with AI conversation practice, personalised lesson paths, and an AI tutor for immersive speaking drills across 40+ languages. The gamification works better than most people expect, and the free tier is genuinely useful rather than a perpetual paywall tease.
Socratic AI tutor that asks guiding questions rather than handing over answers — because the research on learning strongly suggests that's how retention actually works. Covers maths, science, humanities, and coding with guardrails designed for learners of all ages. Backed by Khan Academy's deep expertise in what makes learning stick.