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Semantic ScholarPerplexity
| Attribute | Semantic Scholar Allen Institute for AI | Perplexity Perplexity |
|---|---|---|
| Segment | Search & Research | Search & Research |
| Version | 2025 | Comet era |
| Entry cost | Free, open API | Free tier, Pro $20/mo |
| Pricing tiers | — | Free free · Pro $20 · Max $200 · Enterprise Pro $40 |
| Model stack | SPECTER embeddings | Sonar · GPT-5.2 · Claude Opus 4.5 · Gemini 3 Pro |
| Context window | — | Varies by model |
| Public API | ||
| Routes models | ||
| Changes / 30d | 0 | 2 |
| Origin | Global | Global |
| Capabilities | 200M+ papers, Citation contexts, Open API | Cited answers, Deep research, Comet browser, Spaces, Shopping, Focus modes |