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There are 17 Free APIs for Research.
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17
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Also used for Research 2

  • Claude
    Building reliable, interpretable AI systems
    Open
    38,055
    451
    4.0
    4.5 released 4d ago
    Free + from $20/mo
    Claude โ€” v4.5
    Claude 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.
  • Gemini
    Gemini: Google's most capable AI model yet
    Open
    37,233
    326
    4.1
    2.5 Pro released 6mo ago
    Free + from $19.99
    22,620 blog.google
    They nailed it. Itโ€™s better than 3.7 at coding.
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