65
Stack Score
Editorial pick✓ Verified working
OpenScholar (Allen AI)
Open-source scientific assistant from Allen AI.
Try OpenScholar (Allen AI)✓ Free trial available
Best for
Researchers and grad students who want a fully open-source citation assistant grounded in arXiv, PubMed, etc.
At a glance
- Pricing
- free
- Setup time
- 5 minutes (demo)
- Learning curve
- moderate
- Last verified
- 5/22/2026
What we love
- ✓Fully open — model, code, data
- ✓Built by Allen AI (Semantic Scholar team)
- ✓Free demo
Where it falls short
- −Less polished than Elicit
- −Free demo rate-limited
- −Self-host setup is heavy
Pricing
✓ Pricing verified Jun 21, 20261 tier
Free
$0
forever
- ✓Demo + open weights
Why we picked it
OpenScholar is the academic alternative to Perplexity Deep Research. Open weights, open code, citations from open archives only.
Overview
Open-source scientific assistant from Allen AI. Researchers and grad students who want a fully open-source citation assistant grounded in arXiv, PubMed, etc.
Key features
- ●Open-source weights
- ●Retrieval over open archives
- ●Multi-source citation
- ●Open evaluation suite
- ●Free hosted demo
- ●Self-host option
- ●Reasoning over scientific literature
Best use cases
Literature review with citations
Ask a question; get sourced answer.
Open-source assistant in your lab
Self-host a research tool that respects FOSS values.
Integrations
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