PeopleofSuperintelligence

Researcher

Cristiano Castelfranchi

AI researcher Cristiano Castelfranchi connects cognitive science with multi-agent AI through models of social action and trust. He was born in Rome in 1944 and joined Italy's National Research Council in 1971, with work spanning multi-agent systems, cognitive modeling, and social psychology. At Siena and ISTC, he taught cognitive science and AI, led a research institute, became an ECCAI Fellow in 2003, and shared the 2007 Mind & Brain Prize with Michael Tomasello. His 1998 article on social action for AI agents received the IFAAMAS Influential Paper Award in 2013; in 2020, he co-authored a chapter with Rino Falcone on socio-cognitive trust. As of October 2026, he is an associate researcher at ISTC and a member of its Goal-Oriented Agents Lab.

Works
495
Citations
12,594
h-index
57
Badges

Publication numbers from OpenAlex, as of 19 October 2026.

Timeline

  1. 1944–1971

    From Rome to the CNR

    Born in Rome in 1944, he joins the Institute of Psychology at Italy's National Research Council in 1971. His interests include multi-agent systems research, cognitive modeling and social psychology.

  2. 1998

    Social action for AI agents

    In 1998, he publishes 'Modelling social action for AI agents' in Artificial Intelligence.

  3. 2001–2011

    Siena and ISTC leadership

    From 2001 to 2011, he is a full professor of cognitive science at the University of Siena; from 2002 to 2011, he directs ISTC. At Siena, he teaches Artificial Intelligence Theories and Systems and Cognitive Sciences, and his background spans linguistics and psychology. In 2003, he becomes a Fellow of the European Coordinating Committee for Artificial Intelligence. He shares the Mind & Brain Prize with Michael Tomasello in 2007 for integrating psychology into cognitive science and advancing the study of agent interactions.

  4. 2013

    The IFAAMAS paper award

    In 2013, his 1998 article 'Modelling social action for AI agents' receives the IFAAMAS Influential Paper Award.

  5. 2020

    A socio-cognitive model of trust

    In 2020, he and Rino Falcone publish 'Trust: Perspectives in Cognitive Science,' framing trust through socio-cognitive AI, agent theory and multi-agent modeling.

  6. As of October 2026

    Associate researcher at ISTC

    As of October 2026, he is an associate researcher at ISTC and a member of its Goal-Oriented Agents Lab. His research studies autonomous goal-directed behavior and how social life shapes individual cognition.

Career

  1. Since 1982National Research CouncilMember
  2. Since 1971National Research Council of ItalyAssociate researcher, Director
  3. 2001–2011University of SienaProfessor

From the biography and OpenAlex affiliations (the years of papers that list the organization), so some years are approximate.

Most-cited works

  1. Modelling social action for AI agents1998 · Artificial Intelligence · 549 citations
  2. Cognitive And Social Action1995 · Garland Science eBooks · 543 citations
  3. The challenge of abstract concepts2017 · Psychological Bulletin · 505 citations
  4. Principles of trust for MAS: cognitive anatomy, social importance, and quantification2002 · International Conference on Multi Agent Systems · 491 citations
  5. Trust Theory2010 · Wiley eBooks · 417 citations

From OpenAlex, as of 19 October 2026.

  1. The company share of AI researchers’ top papers rose from 2% to 32%Includes National Research Council. We estimate where leading AI researchers worked when their most-cited papers appeared. The company share rose from 2% in 1975–1979 to 32% in 2020–2024.
  2. Google has the highest combined h-index among AI organizationsIncludes National Research Council. Our estimates of combined and median h-index at AI organizations, using current affiliations and OpenAlex records.
  3. Google had the most people shaping AI every year from 2014 to 2025Our estimates of which organizations employed the most people shaping AI from 1961 to 2025, with a year-by-year chart.
  4. The United States employs an estimated 53% of people in our data with a known employment countryOur estimates of where AI careers are concentrated now and how countries’ shares of dated positions changed over time.

Colleagues

People named in this biography, and people with dated positions at the same organization in the same years.

Sources and credits

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  1. Cristiano Castelfranchi en.wikipedia.org. Checked 19 October 2026.
  2. Cristiano Castelfranchi it.wikipedia.org. Checked 19 October 2026.
  3. Cristiano Castelfranchi jasss.soc.surrey.ac.uk. Checked 19 October 2026.
  4. IFAAMAS: Awards: Influential Paper aamas.csc.liv.ac.uk. Checked 19 October 2026.
  5. Blue Sky Panel ifmas.csc.liv.ac.uk. Checked 19 October 2026.
  6. ISTC History istc.cnr.it. Checked 19 October 2026.
  7. Cristiano Castelfranchi | IxD&A ixdea.org. Checked 19 October 2026.
  8. 2007 Edition mentecervello.it. Checked 19 October 2026.
  9. Awards eurai.org. Checked 19 October 2026.
  10. Trust: Perspectives in Cognitive Science istc.cnr.it. Checked 19 October 2026.
  11. People istc.cnr.it. Checked 19 October 2026.