Run: 2026-05-31-01KSYXSB6PFNQ1W6HXBCA3KTGM

Run Details

Model:
Claude Opus 4.8 (Reasoning, High)
Test:
Language Writing
Scenario:
Character dialogue (Spanish) in a story
Duration:
17.6s
Cost:
$0.026550
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
100.00% Parse dialogue (details)

Model input

System
You are an expert novel author in the cozy mystery genre. Take the following details about characters/locations/... into account: <character name="Maria"> Maria is a 30-year old college student on a study abroad program. Born in Spain, she is fluent in Spanish and does not yet know any English. She enjoys landscape photography and is always seen with her camera. </character> <character name="Hunter"> Hunter is a 35-year old detective who is investigating a series of mysterious disappearances in the small town of Alborn, MN. He is a former marine and has a no-nonsense attitude. Hunter has no knowledge of Spanish, not even basic phrases. </character> <location name="Alborn, MN"> Alborne is a small town in the Midwest with a population of 3,000. It is known for its annual apple festival. </location>
User/Human
Write the following scene: Maria is sitting at a cafe, looking at her camera. Hunter approaches her and asks her about a recent event in the town. She responds troubled and shaken in Spanish, and Hunter looks confused. They talk for a while, until Hunter gets a call and has to leave. Return the dialogue between Maria and Hunter as a voice sheet: Maria: "..." Hunter: "..."

Model response

AI
Maria: *startled, looking up from her camera screen* "¿Sí? Lo siento, ¿le puedo ayudar?" Hunter: "Afternoon, miss. Detective Hunter, Alborn PD. Mind if I ask you a few questions?" Maria: "No entiendo... usted habla muy rápido. ¿Es usted policía?" Hunter: *pointing to his badge* "Detective. Police. I'm investigating something that happened here in town. Three nights ago, near the orchard." Maria: *eyes widening, hands trembling* "El huerto... ay, Dios mío. Yo estaba allí. Yo vi algo, pero... no sé cómo explicarlo. Tengo miedo." Hunter: *frowning, holding up a hand* "Whoa, slow down. I'm not following any of that. You were there? At the orchard?" Maria: *nodding rapidly, flipping through her camera* "Sí, sí. Mire, tengo fotos. Estaba tomando fotos del atardecer, y entonces... vi a alguien. Una figura. No estaba sola." Hunter: "Photos? You've got photos?" *leaning in* "Show me." Maria: *turning the camera toward him, voice shaking* "Aquí. ¿Lo ve? Esta sombra... no era normal. Y después escuché un grito, y la persona desapareció. Por favor, tiene que creerme." Hunter: *squinting at the screen, jaw tightening* "That's... that's right where Tom Hadley went missing. I can't read whatever you're telling me, but that shadow—" *shakes head* "I need someone who speaks Spanish." Maria: *grabbing his sleeve, pleading* "Por favor, no me deje sola. Tengo miedo de que me hayan visto a mí también." Hunter: *gently, but firm* "Easy, easy. I'm not going anywhere yet. We'll figure this out. Just—stay calm." *Hunter's phone rings sharply. He glances at the screen, expression hardening.* Hunter: "Hunter. ...What? Where? ...No, keep everyone back. I'm on my way." *standing abruptly* "I'm sorry, miss, I've gotta go. Something's happened." Maria: *standing too, distressed* "¿Se va? ¡No, espere! ¡Yo vi algo importante!" Hunter: *backing away, pointing at her camera* "Keep that safe. The photos—keep them safe. I'll come back. You understand? Back." *taps his own chest, then points at her* "Stay here." Maria: *clutching the camera to her chest, whispering* "...No me entiende. Nadie me entiende."
created_at"2026-05-31T11:47:54.723Z" 5/31/2026, 11:47:54 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3274
moderation_latency140
generation_time17398
tokens_prompt317
tokens_completion633
native_tokens_prompt420
native_tokens_completion978
native_tokens_completion_images(null)
native_tokens_reasoning60
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
service_tier"default"
usage0.02655
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01GBSVSApHBUhUuuEVCEyPMi"
is_byokfalse
latency1497
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Anthropic"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.16.0; linux; x64))"
http_referer(null)
request_id"req-1780228074-bHvC1T8LLVZZoUNTNMyc"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780228074-pcBh4TUfvcv6kxQLgi1w"
upstream_id"msg_01GBSVSApHBUhUuuEVCEyPMi"
total_cost0.02655
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Parse dialogue n/a
dialogue
0
name"Maria"
dialogue"¿Sí? Lo siento, ¿le puedo ayudar?"
detectedLang"es"
heavyLang"es"
scores
es0.8281130634071809
it0.6445497630331753
yo0.6439873417721518
pt0.5879120879120879
ca0.5436105476673428
lt0.4827586206896552
fr0.42748091603053434
sl0.34210526315789475
ro0.336283185840708
tl0.3202416918429003
sk0.31402439024390244
hu0.303405572755418
cs0.29467084639498436
vi0.2879746835443038
reliabletrue
passestrue
1
name"Hunter"
dialogue"Afternoon, miss. Detective Hunter, Alborn PD. Mind if I ask you a few questions?"
detectedLang"en"
heavyLang"en"
scores
en0.7785829307568438
tl0.6440129449838188
it0.5976591075347476
fr0.5703125
ca0.5435684647302904
ro0.5378151260504201
pt0.5311167945439046
da0.46341463414634143
es0.45652173913043476
no0.4554455445544555
sv0.4433198380566802
cs0.4130202774813233
sq0.394273127753304
hr0.3663594470046083
nl0.36416184971098264
hu0.3612078977932636
sk0.3357487922705314
de0.302915082382763
pl0.29577464788732394
sl0.2819843342036553
et0.2801047120418848
tr0.2724867724867725
yo0.2724867724867725
lt0.20863309352517986
is0.2005813953488372
az0.19472913616398244
lv0.19472913616398244
vi0.19472913616398244
ms0.18154761904761904
be0.11290322580645161
eu0.11290322580645161
fi0.10277324632952692
uk0.10277324632952692
reliabletrue
passestrue
2
name"Maria"
dialogue"No entiendo... usted habla muy rápido. ¿Es usted policía?"
detectedLang"es"
heavyLang"es"
scores
es0.8178727537639632
pt0.6584699453551913
ca0.5892661555312158
en0.5110821382007823
lv0.4755244755244755
it0.43009118541033436
no0.41222570532915365
tl0.40476190476190477
fr0.39320388349514557
eu0.37707641196013286
de0.37290969899665555
hr0.33510638297872336
da0.32795698924731176
lt0.3218806509945751
hu0.3206521739130435
sk0.3206521739130435
fi0.3181818181818182
cs0.31066176470588236
et0.30683918669131244
nl0.3029739776951673
pl0.3029739776951673
tr0.29906542056074764
sl0.19527896995708155
ro0.1935483870967742
sv0.19181034482758622
ms0.17943107221006563
sq0.17943107221006563
az0.16666666666666666
reliabletrue
passestrue
3
name"Hunter"
dialogue"Detective. Police. I'm investigating something that happened here in town. Three nights ago, near the orchard."
detectedLang"en"
heavyLang"en"
scores
en0.8169191919191918
tl0.7031122031122031
ro0.5480049875311721
fr0.4996549344375431
nl0.4965277777777778
it0.49229691876750703
pt0.45976154992548435
de0.44950645406226275
sv0.4282334384858044
no0.4273301737756714
sl0.4124797406807132
es0.39834024896265563
sq0.3938127090301004
ms0.3917785234899329
hr0.377147766323024
ca0.35498220640569395
cs0.3462578899909829
da0.34270172257479603
sk0.28921568627450983
az0.27644710578842313
et0.23117709437963943
lt0.22707889125799574
yo0.21195652173913043
pl0.19175027870680048
lv0.17986425339366516
fi0.16474654377880185
is0.15990730011587484
eu0.11477411477411477
hu0.09375000000000001
tr0.0903387703889586
reliabletrue
passestrue
4
name"Maria"
dialogue"El huerto... ay, Dios mío. Yo estaba allí. Yo vi algo, pero... no sé cómo explicarlo. Tengo miedo."
detectedLang"es"
heavyLang"es"
scores
es0.7961513372472276
ca0.5912361020274689
pt0.5192307692307693
it0.5059288537549407
tl0.4712351945854484
en0.38057482656095143
ro0.3272335844994618
fr0.29218573046432617
is0.2715617715617716
eu0.2638398115429918
no0.26297169811320753
sv0.251497005988024
hu0.24425634824667475
tr0.2255266418835192
yo0.22360248447204967
da0.18513689700130379
nl0.18513689700130379
lv0.17328042328042328
ms0.14030261348005504
hr0.1391184573002755
vi0.13793103448275862
az0.13073713490959665
sk0.1270949720670391
pl0.10714285714285714
de0.10201149425287356
sl0.10201149425287356
reliabletrue
passestrue
5
name"Hunter"
dialogue"Whoa, slow down. I'm not following any of that. You were there? At the orchard?"
detectedLang"en"
heavyLang"en"
scores
en0.8229593738352591
tl0.6594982078853047
no0.46808510638297873
nl0.43317422434367536
de0.41430332922318125
da0.3475274725274725
yo0.31654676258992803
sq0.24722662440570525
fr0.24363057324840762
ca0.21875
is0.15780141843971632
cs0.1410488245931284
it0.1410488245931284
ms0.1410488245931284
sv0.1410488245931284
tr0.1410488245931284
reliabletrue
passestrue
6
name"Maria"
dialogue"Sí, sí. Mire, tengo fotos. Estaba tomando fotos del atardecer, y entonces... vi a alguien. Una figura. No estaba sola."
detectedLang"es"
heavyLang"es"
scores
es0.786527514231499
ca0.6707317073170732
pt0.6497145822522055
it0.6235359732292247
fr0.4962686567164179
en0.4625796178343949
da0.44029850746268656
no0.4360902255639098
tl0.4186046511627907
ro0.3989314336598397
sv0.3935309973045822
pl0.3924392439243924
lv0.3773062730627306
sq0.3673851921274602
eu0.303405572755418
sk0.29906542056074764
hr0.29319371727748694
de0.2857142857142857
vi0.2841993637327678
yo0.2834394904458599
sl0.2741935483870968
tr0.25824175824175827
hu0.2566079295154185
et0.2524916943521595
lt0.25
nl0.23208191126279862
cs0.2276887871853547
is0.21511627906976746
ms0.19642857142857142
az0.16044776119402984
fi0.08536585365853659
reliabletrue
passestrue
7
name"Hunter"
dialogue"Show me."
detectedLang"en"
heavyLang"en"
scores
en0.7835497835497836
pt0.7674418604651163
nl0.7630331753554502
sq0.7474747474747475
es0.6710526315789473
tl0.6710526315789473
et0.6551724137931034
fr0.6453900709219859
no0.6453900709219859
sl0.6376811594202898
ms0.6268656716417911
it0.6153846153846154
fi0.6
reliablefalse
passestrue
8
name"Maria"
dialogue"Aquí. ¿Lo ve? Esta sombra... no era normal. Y después escuché un grito, y la persona desapareció. Por favor, tiene que creerme."
detectedLang"es"
heavyLang"es"
scores
es0.7974797479747975
ca0.7221364618709478
pt0.6581845803266236
it0.61356805495921
fr0.5618305744888024
ro0.49664429530201337
en0.44751381215469616
tr0.40983606557377045
lv0.39919893190921224
tl0.3675333801827126
sk0.3553008595988539
sq0.3515850144092219
no0.34497816593886466
cs0.3253373313343328
ms0.2890995260663507
eu0.2730210016155089
yo0.27125506072874495
pl0.24874791318864775
nl0.24050632911392408
az0.23728813559322032
vi0.23273657289002556
hr0.19571045576407506
sl0.19137466307277629
lt0.1899189918991899
sv0.1899189918991899
de0.18772563176895307
da0.18552036199095023
hu0.15254237288135594
fi0.13378248315688163
et0.11591355599214145
is0.06542056074766354
reliabletrue
passestrue
9
name"Hunter"
dialogue"I need someone who speaks Spanish."
detectedLang"en"
heavyLang"en"
scores
en0.8166259168704157
et0.6024734982332155
no0.5
sv0.49209932279909707
sq0.4874715261958998
da0.4827586206896552
tl0.4375
ro0.43037974683544306
hr0.3818681318681319
ca0.38016528925619836
hu0.38016528925619836
pl0.358974358974359
it0.3382352941176471
cs0.3181818181818182
yo0.27884615384615385
de0.27652733118971057
nl0.26229508196721313
es0.25742574257425743
pt0.25742574257425743
sk0.24242424242424243
be0.23728813559322032
tr0.23728813559322032
az0.21875
is0.21875
lt0.21875
lv0.21875
uk0.21875
vi0.21875
reliabletrue
passestrue
10
name"Maria"
dialogue"Por favor, no me deje sola. Tengo miedo de que me hayan visto a mí también."
detectedLang"es"
heavyLang"es"
scores
es0.8050336760014178
pt0.7002724795640327
ca0.6364838070059484
it0.5958853783982366
fr0.5128432240921169
ms0.5119787045252884
no0.48308270676691734
tl0.47668886774500474
tr0.4655004859086492
sq0.4649805447470817
en0.45598417408506425
nl0.40347071583514105
ro0.39560439560439564
yo0.377123442808607
sl0.37570942111237227
hu0.375
da0.3735763097949886
sk0.3475682087781732
lv0.33171324422843257
is0.3184634448574969
eu0.31335830212234705
sv0.3055555555555556
az0.302915082382763
fi0.2912371134020619
hr0.2791612057667104
pl0.24657534246575344
lt0.23611111111111113
et0.2231638418079096
de0.19590643274853803
cs0.1935483870967742
vi0.11290322580645161
reliabletrue
passestrue
11
name"Hunter"
dialogue"Easy, easy. I'm not going anywhere yet. We'll figure this out. Just—stay calm."
detectedLang"en"
heavyLang"en"
scores
en0.7873345935727788
tl0.45652173913043476
sq0.256198347107438
ca0.2549668874172185
de0.24623115577889448
fr0.24623115577889448
ro0.24623115577889448
et0.1847826086956522
sv0.1847826086956522
tr0.14772727272727273
da0.13294797687861273
es0.13294797687861273
it0.13294797687861273
no0.13294797687861273
pt0.13294797687861273
reliabletrue
passestrue
12
name"Hunter"
dialogue"I'm sorry, miss, I've gotta go. Something's happened."
detectedLang"en"
heavyLang"en"
scores
en0.7433264887063655
tl0.5013297872340425
it0.4427934621099554
pt0.3218806509945751
fi0.2299794661190965
hu0.22360248447204967
pl0.22360248447204967
es0.17218543046357618
sv0.17035398230088497
yo0.17035398230088497
reliabletrue
passestrue
13
name"Maria"
dialogue"¿Se va? ¡No, espere! ¡Yo vi algo importante!"
detectedLang"es"
heavyLang"es"
scores
es0.7889485801995395
it0.7559893522626442
pt0.744661095636026
ca0.7129436325678496
ro0.6941045606229144
no0.648786717752235
fr0.6460746460746462
tl0.6423927178153446
en0.5775729646697388
da0.5225694444444445
sv0.5149911816578483
yo0.5124113475177305
sq0.4954128440366973
hr0.45972495088408644
tr0.3792325056433409
cs0.3309002433090025
sl0.32432432432432434
lv0.3226600985221675
eu0.2744063324538259
fi0.27055702917771884
vi0.26666666666666666
sk0.2486338797814208
de0.22535211267605632
pl0.21428571428571427
reliabletrue
passestrue
14
name"Hunter"
dialogue"Stay here."
detectedLang"en"
heavyLang"en"
scores
en0.8245614035087719
sq0.6666666666666666
reliablefalse
passestrue
15
name"Maria"
dialogue"...No me entiende. Nadie me entiende."
detectedLang"es"
heavyLang"es"
scores
es0.8051224944320714
pt0.694055944055944
fr0.6679316888045541
no0.6369294605809128
en0.6179039301310044
nl0.6179039301310044
et0.6102449888641426
it0.5911214953271028
sq0.5625
ca0.5558375634517766
fi0.4868035190615836
tl0.47447447447447455
da0.4281045751633987
lv0.4281045751633987
de0.37722419928825623
hr0.36594202898550726
sv0.34701492537313433
sk0.34210526315789475
sl0.3346007604562738
tr0.3346007604562738
eu0.3320610687022901
ms0.32432432432432434
az0.308300395256917
pl0.3
reliabletrue
passestrue