57,213
6,709
6,652
6,325
5,429
5,105

2,928

2,213
1,783
1,625
1,642
1,134

947

771

665
654
612

594
585
578
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29,784
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11,835

10,585
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Research
There are 17 Free APIs for Research.
Get alerts
Number of tools
17
Most popular
NotebookLM
โผ State of the art
Free mode
100% free
Freemium
Free Trial
Also used for Research 2
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38,0454514.04.5 released 4d agoFree + from $20/moClaude โ v4.5Claude Sonnet 4.5 Stronger reasoning & math: fewer slips on multi-step problems. Better coding: clearer fixes, tighter adherence to specs. More reliable tool/JSON calls: fewer schema errors, cleaner arguments. Improved vision: nicer OCR and chart/screenshot understanding. Holds long context better: steadier multi-doc coherence. Lower, steadier latency: snappier responses under load. Calmer alignment: fewer overcautious refusals; safer wording.267
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37,2093264.12.5 Pro released 6mo agoFree + from $19.9922,603 blog.googleTealgreen๐ 265 karmaMar 29, 2025They nailed it. Itโs better than 3.7 at coding.82 Reply Share Edit Delete Report
Information retrieval16
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1,223111.0Released 1y agoFree + from $50/mo1 Reply Share Edit Delete Report
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1,458304.5Released 1y agoFree + from $49I like it. It answers simple questions accurately and by the book. The Ref (reference) page is not usually accurate though. I'll keep you updated on how it responds to complex questions.1 Reply Share Edit Delete Report
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Open23,1332564.4Released 1y ago100% FreeAnythingLLM is easy to use, and allows us to build private databases using several (any) kinds of media (text, pdf, audio, etc) and use it as a source of knowledge for any LLM you might wonder to experiment!334 Reply Share Edit Delete Report
Q&A1
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8,238873.6Released 7y agoFree + from $5/mo
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