Semantic Scholar vs Connected Papers: Complete Comparison 2026
Choosing between Semantic Scholar and Connected Papers? We compare both tools across features, pricing, pros and cons to help you decide which is the better fit in 2026.
Allen Institute for AI · Research
Semantic Scholar is a free AI-powered academic search engine indexing 200M+ papers with TLDR summaries and citation context. It's a core discovery tool backed by AI2.
Connected Papers · Research
Connected Papers builds a visual graph of papers related to a seed paper by similarity, revealing key prior and derivative work. It's a fast way to map a new field.
Key differences at a glance
- •Semantic Scholar scores higher overall (8.0 vs 7.5).
- •Both start at Free (Semantic Scholar) and $6/mo (Connected Papers).
- •Semantic Scholar leans on completely free.
- •Connected Papers leans on quickly maps a field.
Side-by-side comparison
| Feature | Semantic ScholarAllen Institute for AI | Connected PapersConnected Papers |
|---|---|---|
| Quality score | 8.0 / 10 | 7.5 / 10 |
| Starting price | Free | $6/mo |
| Free tier | Yes — Free | Yes — Few free graphs |
| API input price | — | — |
| API output price | — | — |
| Speed | — | — |
| Context window | — | — |
| Categories | Research | Research |
| Key features |
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| Pros |
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| Cons |
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Semantic Scholar
Choose Semantic Scholar if you want completely free and a free tier to start.
Connected Papers
Choose Connected Papers if you want quickly maps a field and a free tier to start.
Pricing comparison
The verdict
Overall, Semantic Scholar edges ahead with a quality score of 8.0 versus 7.5 for Connected Papers. Choose Semantic Scholar if you want completely free. That said, Connected Papers is the better pick when quickly maps a field matters most — so the right answer depends on your priorities and budget.
Frequently asked questions
Q. Which is better, Semantic Scholar or Connected Papers?
On our scoring, Semantic Scholar edges ahead (8.0/10), but the right pick depends on your priorities and budget — see the breakdown above.
Q. Is Semantic Scholar or Connected Papers cheaper?
Semantic Scholar starts at Free and Connected Papers at $6/mo. Check current rates before committing.
Q. Can I use Semantic Scholar and Connected Papers together?
Yes — many teams use more than one AI tool, picking Semantic Scholar for some tasks and Connected Papers for others where it's stronger.