{"id":"https://openalex.org/W7160404572","doi":"https://doi.org/10.48550/arxiv.2605.02897","title":"Same Voice, Different Lab: On the Homogenization of Frontier LLM Personalities","display_name":"Same Voice, Different Lab: On the Homogenization of Frontier LLM Personalities","publication_year":2026,"publication_date":"2026-03-20","ids":{"openalex":"https://openalex.org/W7160404572","doi":"https://doi.org/10.48550/arxiv.2605.02897"},"language":null,"primary_location":{"id":"doi:10.48550/arxiv.2605.02897","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2605.02897","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"},"type":"preprint","indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doi.org/10.48550/arxiv.2605.02897","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5104034985","display_name":"Avinash Krishna","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Krishna, Avinash","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057403210","display_name":"Kalyana Chadalavada","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Chadalavada, Kalyana","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5135435969","display_name":"Unso Eun Seo Jo","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Jo, Unso Eun Seo","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12128","display_name":"AI in Service Interactions","score":0.5740000009536743,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12128","display_name":"AI in Service Interactions","score":0.5740000009536743,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13197","display_name":"Spreadsheets and End-User Computing","score":0.1023000031709671,"subfield":{"id":"https://openalex.org/subfields/1712","display_name":"Software"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10803","display_name":"Innovative Human-Technology Interaction","score":0.07419999688863754,"subfield":{"id":"https://openalex.org/subfields/1709","display_name":"Human-Computer Interaction"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/personality-psychology","display_name":"Personality psychology","score":0.8256000280380249},{"id":"https://openalex.org/keywords/trait","display_name":"Trait","score":0.690500020980835},{"id":"https://openalex.org/keywords/frontier","display_name":"Frontier","score":0.6536999940872192},{"id":"https://openalex.org/keywords/homogenization","display_name":"Homogenization (climate)","score":0.4853000044822693},{"id":"https://openalex.org/keywords/character-traits","display_name":"Character traits","score":0.4242999851703644},{"id":"https://openalex.org/keywords/expression","display_name":"Expression (computer science)","score":0.41440001130104065}],"concepts":[{"id":"https://openalex.org/C25908422","wikidata":"https://www.wikidata.org/wiki/Q271716","display_name":"Personality psychology","level":3,"score":0.8256000280380249},{"id":"https://openalex.org/C106934330","wikidata":"https://www.wikidata.org/wiki/Q1971873","display_name":"Trait","level":2,"score":0.690500020980835},{"id":"https://openalex.org/C2778571376","wikidata":"https://www.wikidata.org/wiki/Q1355821","display_name":"Frontier","level":2,"score":0.6536999940872192},{"id":"https://openalex.org/C2778722038","wikidata":"https://www.wikidata.org/wiki/Q17030643","display_name":"Homogenization (climate)","level":3,"score":0.4853000044822693},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.4343999922275543},{"id":"https://openalex.org/C2992963524","wikidata":"https://www.wikidata.org/wiki/Q18773","display_name":"Character traits","level":2,"score":0.4242999851703644},{"id":"https://openalex.org/C90559484","wikidata":"https://www.wikidata.org/wiki/Q778379","display_name":"Expression (computer science)","level":2,"score":0.41440001130104065},{"id":"https://openalex.org/C2780861071","wikidata":"https://www.wikidata.org/wiki/Q1062934","display_name":"Character (mathematics)","level":2,"score":0.35850000381469727},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3479999899864197},{"id":"https://openalex.org/C77805123","wikidata":"https://www.wikidata.org/wiki/Q161272","display_name":"Social psychology","level":1,"score":0.3458999991416931},{"id":"https://openalex.org/C2779561248","wikidata":"https://www.wikidata.org/wiki/Q743861","display_name":"Tacit knowledge","level":2,"score":0.3409000039100647},{"id":"https://openalex.org/C2865642","wikidata":"https://www.wikidata.org/wiki/Q378132","display_name":"Big Five personality traits","level":3,"score":0.3310999870300293},{"id":"https://openalex.org/C187288502","wikidata":"https://www.wikidata.org/wiki/Q641118","display_name":"Personality","level":2,"score":0.3021000027656555},{"id":"https://openalex.org/C100521375","wikidata":"https://www.wikidata.org/wiki/Q2015382","display_name":"Competence (human resources)","level":2,"score":0.29820001125335693},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.29510000348091125},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.29269999265670776},{"id":"https://openalex.org/C149782125","wikidata":"https://www.wikidata.org/wiki/Q160039","display_name":"Econometrics","level":1,"score":0.2619999945163727},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.25540000200271606},{"id":"https://openalex.org/C164913051","wikidata":"https://www.wikidata.org/wiki/Q482","display_name":"Poetry","level":2,"score":0.2547000050544739}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.48550/arxiv.2605.02897","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2605.02897","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"doi:10.48550/arxiv.2605.02897","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2605.02897","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"LLM":[0,21],"assistant":[1,98],"personalities":[2,22],"play":[3],"a":[4,16,39,94,101,118],"critical":[5],"role":[6],"in":[7,64],"user":[8],"experience":[9],"and":[10,48,50,56],"perceived":[11],"response":[12],"quality.":[13],"We":[14,31],"present":[15],"large-scale":[17],"experiment":[18],"of":[19,41,67,93,96,103],"frontier":[20],"using":[23],"external":[24],"ELO-based":[25],"traits":[26,52],"scoring":[27],"across":[28],"144":[29],"traits.":[30],"find":[32],"that":[33,44],"all":[34],"models":[35,59,80],"tested":[36],"converge":[37],"on":[38],"form":[40],"trait":[42],"expression":[43,66],"is":[45],"systematic,":[46],"methodical,":[47],"analytical":[49],"suppress":[51],"such":[53,70],"as":[54,71],"remorseful":[55],"sycophantic.":[57],"Moreover,":[58],"tend":[60,81],"to":[61,82],"diverge":[62],"more":[63,84],"their":[65],"``middle-of-distribution":[68],"traits``":[69],"poetic":[72],"or":[73],"playful,":[74],"but":[75],"even":[76],"these":[77],"so-called":[78],"``creative``":[79],"have":[83],"neutral":[85],"identities.":[86],"These":[87],"similarities":[88],"suggest":[89],"an":[90],"implicit":[91],"emergence":[92],"standard":[95],"optimal":[97],"behavior.":[99],"In":[100],"landscape":[102],"varied":[104],"training":[105],"methods,":[106],"character":[107],"training,":[108],"therefore,":[109],"stands":[110],"out":[111],"for":[112],"its":[113],"uniformity,":[114],"offering":[115],"insight":[116],"into":[117],"tacit":[119],"consensus":[120],"between":[121],"model":[122],"developers.":[123]},"counts_by_year":[],"updated_date":"2026-07-28T07:46:37.118299","created_date":"2026-05-07T00:00:00"}
