CORE vs Connected Papers
AI Research tools comparison · Updated 2026
Choosing between CORE and Connected Papers? Both are popular AI Research tools. CORE is free to use and focuses on 250M+ metadata records. Connected Papers starts at Freemium and specializes in Visual paper graphs. Here's a detailed side-by-side comparison to help you decide.
At a Glance
| CORE | Connected Papers | |
|---|---|---|
| Category | AI Research | AI Research |
| Pricing | free | freemium |
| Starting Price | Free | Freemium |
| Best For | open-access, research, text-mining | research, visualization, literature-review |
| Features | 6 listed | 5 listed |
CORE
World's largest open access paper aggregator with 250M+ records and text mining API.
Connected Papers
Visual graph explorer that maps related papers based on similarity, not just citations.
Feature Comparison
| CORE | Connected Papers |
|---|---|
| ✓ 250M+ metadata records | ✓ Visual paper graphs |
| ✓ Full-text access | ✓ Similarity-based connections |
| ✓ Open access aggregation | ✓ Prior work view |
| ✓ API for text mining | ✓ Derivative work view |
| ✓ Dataset services | ✓ Export to reference managers |
| ✓ Repository dashboard | — |
Pricing Comparison
CORE
freeFree for individuals. API access free for research. Commercial API licensing available.
Connected Papers
freemiumFree tier allows 5 graphs per month. Pro plan at $3/month for unlimited graphs.
Pros & Cons
CORE
Pros
- Largest open access collection
- Full-text availability
- Free API for research
- Great for text mining
Cons
- Interface not very modern
- Duplicate records possible
- Search relevance can be poor
- Full-text not always available
Connected Papers
Pros
- Unique visual approach
- Discovers non-obvious connections
- Intuitive interface
- Free tier available
Cons
- Limited free graphs per month
- Only works with indexed papers
- Graphs can be overwhelming for broad topics
The Verdict
Both CORE and Connected Papers are strong AI Research tools. CORE stands out for Largest open access collection, making it ideal if that's your priority. Connected Papers excels at Unique visual approach, which may be more important for your workflow. Price-wise, CORE is free while Connected Papers is freemium, so budget may also factor in.
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