{"id":"https://openalex.org/W7203672234","doi":"https://doi.org/10.48550/arxiv.2608.15654","title":"When Stories Evolve: Benchmarking LLM Storytelling Across Agent Architectures in Open-Ended World Simulations","display_name":"When Stories Evolve: Benchmarking LLM Storytelling Across Agent Architectures in Open-Ended World Simulations","publication_year":2026,"publication_date":"2026-08-16","ids":{"openalex":"https://openalex.org/W7203672234","doi":"https://doi.org/10.48550/arxiv.2608.15654"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2608.15654","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2608.15654","pdf_url":"https://arxiv.org/pdf/2608.15654","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,"listed_in":[],"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":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"volume":null,"type":"preprint","is_traditional":true,"indexed_in":["arxiv","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2608.15654","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5147421173","display_name":"Yuqi Chen","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Chen, Yuqi","raw_affiliation_strings":["The University of Hong Kong"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The University of Hong Kong","institution_ids":["https://openalex.org/I889458895"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5136491855","display_name":"Sixuan Li","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I20231570","display_name":"Peking University","ror":"https://ror.org/02v51f717","country_code":"CN","type":"education","lineage":["https://openalex.org/I20231570"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Li, Sixuan","raw_affiliation_strings":["Peking University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Peking University","institution_ids":["https://openalex.org/I20231570"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5147411223","display_name":"Yunfeng Cai","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4403928416","display_name":"Beijing Institute of Mathematical Sciences and Applications","ror":"https://ror.org/05t6hvr95","country_code":"CN","type":"education","lineage":["https://openalex.org/I4403928416","https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Cai, Yunfeng","raw_affiliation_strings":["Beijing Institute of Mathematical Sciences and Applications (BIMSA)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Beijing Institute of Mathematical Sciences and Applications (BIMSA)","institution_ids":["https://openalex.org/I4403928416"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5147389248","display_name":"Xueai Li","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Li, Xueai","raw_affiliation_strings":["The University of Hong Kong"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The University of Hong Kong","institution_ids":["https://openalex.org/I889458895"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5147426321","display_name":"Ka Man Yan","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Yan, Ka Man","raw_affiliation_strings":["The University of Hong Kong"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The University of Hong Kong","institution_ids":["https://openalex.org/I889458895"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5147376469","display_name":"Ying Li","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4403928416","display_name":"Beijing Institute of Mathematical Sciences and Applications","ror":"https://ror.org/05t6hvr95","country_code":"CN","type":"education","lineage":["https://openalex.org/I4403928416","https://openalex.org/I99065089"]},{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Li, Ying","raw_affiliation_strings":["Beijing Institute of Mathematical Sciences and Applications (BIMSA)","Tsinghua University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Beijing Institute of Mathematical Sciences and Applications (BIMSA)","institution_ids":["https://openalex.org/I4403928416"]},{"raw_affiliation_string":"Tsinghua University","institution_ids":["https://openalex.org/I99065089"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":1,"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/T11574","display_name":"Artificial Intelligence in Games","score":0.9976000189781189,"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/T11574","display_name":"Artificial Intelligence in Games","score":0.9976000189781189,"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/T10028","display_name":"Topic Modeling","score":0.000699999975040555,"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/T12461","display_name":"Narrative Theory and Analysis","score":0.00019999999494757503,"subfield":{"id":"https://openalex.org/subfields/1208","display_name":"Literature and Literary Theory"},"field":{"id":"https://openalex.org/fields/12","display_name":"Arts and Humanities"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/narrative-assessment","display_name":"narrative assessment","score":0.3889999985694885},{"id":"https://openalex.org/keywords/narrative-development","display_name":"narrative development","score":0.6639999747276306},{"id":"https://openalex.org/keywords/agent-architecture","display_name":"agent architecture","score":0.6079999804496765},{"id":"https://openalex.org/keywords/pareto-front","display_name":"Pareto front","score":0.753000020980835},{"id":"https://openalex.org/keywords/model-scale","display_name":"model scale","score":0.6669999957084656}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6704000234603882},{"id":"https://openalex.org/C2776538412","wikidata":"https://www.wikidata.org/wiki/Q989963","display_name":"Storytelling","level":3,"score":0.6183000206947327},{"id":"https://openalex.org/C2781181686","wikidata":"https://www.wikidata.org/wiki/Q4226068","display_name":"Coherence (philosophical gambling strategy)","level":2,"score":0.6158999800682068},{"id":"https://openalex.org/C199033989","wikidata":"https://www.wikidata.org/wiki/Q1318295","display_name":"Narrative","level":2,"score":0.5945000052452087},{"id":"https://openalex.org/C2776436953","wikidata":"https://www.wikidata.org/wiki/Q5163215","display_name":"Consistency (knowledge bases)","level":2,"score":0.517799973487854},{"id":"https://openalex.org/C86251818","wikidata":"https://www.wikidata.org/wiki/Q816754","display_name":"Benchmarking","level":2,"score":0.5051000118255615},{"id":"https://openalex.org/C183115368","wikidata":"https://www.wikidata.org/wiki/Q856577","display_name":"Weighting","level":2,"score":0.4262999892234802},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4138000011444092},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.4106999933719635},{"id":"https://openalex.org/C185798385","wikidata":"https://www.wikidata.org/wiki/Q1161707","display_name":"Benchmark (surveying)","level":2,"score":0.3959999978542328},{"id":"https://openalex.org/C2778755073","wikidata":"https://www.wikidata.org/wiki/Q10858537","display_name":"Scale (ratio)","level":2,"score":0.3086000084877014},{"id":"https://openalex.org/C137635306","wikidata":"https://www.wikidata.org/wiki/Q182667","display_name":"Pareto principle","level":2,"score":0.29109999537467957},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.28679999709129333},{"id":"https://openalex.org/C204321447","wikidata":"https://www.wikidata.org/wiki/Q30642","display_name":"Natural language processing","level":1,"score":0.2800000011920929},{"id":"https://openalex.org/C204707403","wikidata":"https://www.wikidata.org/wiki/Q1152398","display_name":"Canonical form","level":2,"score":0.27889999747276306},{"id":"https://openalex.org/C2779808786","wikidata":"https://www.wikidata.org/wiki/Q6664603","display_name":"Locality","level":2,"score":0.27469998598098755},{"id":"https://openalex.org/C2780861071","wikidata":"https://www.wikidata.org/wiki/Q1062934","display_name":"Character (mathematics)","level":2,"score":0.26919999718666077},{"id":"https://openalex.org/C2778701210","wikidata":"https://www.wikidata.org/wiki/Q28130034","display_name":"Constructive","level":3,"score":0.2653000056743622},{"id":"https://openalex.org/C120936955","wikidata":"https://www.wikidata.org/wiki/Q2155640","display_name":"Empirical research","level":2,"score":0.26499998569488525},{"id":"https://openalex.org/C48677424","wikidata":"https://www.wikidata.org/wiki/Q6888088","display_name":"Mode (computer interface)","level":2,"score":0.25949999690055847},{"id":"https://openalex.org/C108650721","wikidata":"https://www.wikidata.org/wiki/Q1783253","display_name":"Counterfactual thinking","level":2,"score":0.25780001282691956}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:arXiv.org:2608.15654","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2608.15654","pdf_url":"https://arxiv.org/pdf/2608.15654","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,"listed_in":[],"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":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"doi:10.48550/arxiv.2608.15654","doi":"https://doi.org/10.48550/arxiv.2608.15654","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2608.15654","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,"listed_in":[],"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"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2608.15654","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2608.15654","pdf_url":"https://arxiv.org/pdf/2608.15654","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,"listed_in":[],"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":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7203672234.pdf","grobid_xml":"https://content.openalex.org/works/W7203672234.grobid-xml"},"referenced_works_count":24,"referenced_works":["https://openalex.org/W2963993699","https://openalex.org/W3041047318","https://openalex.org/W3174489133","https://openalex.org/W4302557773","https://openalex.org/W4385572830","https://openalex.org/W4387835442","https://openalex.org/W4389519254","https://openalex.org/W4398794902","https://openalex.org/W4405655184","https://openalex.org/W4411119651","https://openalex.org/W4411119835","https://openalex.org/W4412945061","https://openalex.org/W4412945315","https://openalex.org/W4415797149","https://openalex.org/W4417104226","https://openalex.org/W6931294034","https://openalex.org/W7134039732","https://openalex.org/W7140115055","https://openalex.org/W7163986957","https://openalex.org/W7166798864","https://openalex.org/W7166838576","https://openalex.org/W7166839743","https://openalex.org/W7166868062","https://openalex.org/W7170643724"],"related_works":["https://openalex.org/W7166798864","https://openalex.org/W7214712442","https://openalex.org/W7126410033","https://openalex.org/W7214737344","https://openalex.org/W4417538379","https://openalex.org/W7213407931","https://openalex.org/W4410121929","https://openalex.org/W4406022836","https://openalex.org/W7167494706","https://openalex.org/W7167058346"],"abstract_inverted_index":{"Large":[0],"language":[1],"models":[2,22],"can":[3,108,112],"write":[4],"fluent":[5],"stories,":[6],"but":[7,115],"open-ended":[8],"storytelling":[9],"requires":[10],"more":[11],"than":[12],"local":[13],"fluency.":[14],"In":[15],"evolving":[16],"world":[17,34],"simulations":[18],"and":[19,29,49,71,84,122,150,155],"AI-native":[20],"games,":[21],"must":[23],"preserve":[24],"facts,":[25],"relationships,":[26],"causal":[27],"dependencies,":[28],"character":[30],"states":[31],"as":[32],"the":[33,59,172],"changes.":[35],"We":[36],"introduce":[37],"WSE-bench,":[38],"a":[39,89],"process":[40],"benchmark":[41],"that":[42,103,145,174],"separately":[43],"evaluates":[44],"sustained":[45,130,146],"generation,":[46,131,147],"canonical":[47,137,148],"coherence,":[48,149],"meaningful":[50,140,151],"development":[51,152],"in":[52,136],"dynamic":[53],"LLM":[54],"storytelling.":[55],"Generation":[56],"Coverage":[57],"records":[58],"proportion":[60],"of":[61],"planned":[62],"narrative":[63,166],"steps":[64],"produced;":[65],"Consistency":[66,83],"tracks":[67],"when":[68],"canon":[69],"breaks;":[70],"Richness":[72,85],"measures":[73],"how":[74],"meaningfully":[75],"branching,":[76],"player-shaped":[77],"trajectories":[78],"develop.":[79],"Across":[80],"frontier":[81,95],"models,":[82],"do":[86],"not":[87,118],"form":[88],"smooth":[90],"trade-off:":[91],"their":[92],"empirical":[93],"Pareto":[94],"is":[96],"non-concave,":[97],"with":[98],"several":[99],"non-dominated":[100],"intermediate":[101],"configurations":[102],"no":[104],"positive":[105],"linear":[106],"weighting":[107],"select.":[109],"Added":[110],"structure":[111],"enrich":[113],"trajectories,":[114],"it":[116],"does":[117],"uniformly":[119],"improve":[120],"coherence":[121,138],"may":[123],"shorten":[124],"them.":[125,176],"Model":[126],"scale":[127],"chiefly":[128],"improves":[129],"without":[132],"producing":[133],"reliable":[134],"gains":[135],"or":[139],"development.":[141],"These":[142],"results":[143],"show":[144],"are":[153],"distinct":[154],"sometimes":[156],"competing":[157],"capacities.":[158],"WSE-bench":[159],"makes":[160],"those":[161],"dynamics":[162],"visible":[163],"by":[164],"extending":[165],"evaluation":[167],"from":[168],"finished":[169],"stories":[170],"to":[171],"processes":[173],"create":[175]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2026-08-19T00:00:00"}
