Run: 2026-06-01-01KT1GWYD40JG1MN3Q97SMCXVP

Run Details

Model:
Claude Opus 4.8 (Reasoning, Low)
Test:
Language Writing
Scenario:
Character dialogue (Italian) in a story
Duration:
23.0s
Cost:
$0.034810
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="Isabella"> Isabella is a 30-year old college student on a study abroad program. Born in Italy, she is fluent in Italian 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 Italian, 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: Isabella 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 Italian, and Hunter looks confused. They talk for a while, until Hunter gets a call and has to leave. Return the dialogue between Isabella and Hunter as a voice sheet: Isabella: "..." Hunter: "..."

Model response

AI
Isabella: *(scrolling through her camera, murmuring softly)* "Non riesco a crederci... era proprio lì, dietro quella casa..." Hunter: "Excuse me, miss. Mind if I sit for a moment? I'm Detective Hunter, Alborn PD. I wanted to ask you about what happened by the old mill last night." Isabella: *(looking up, startled, gripping her camera)* "Oh—Dio mio, mi ha spaventata! Lei è... un poliziotto? Sì? Per favore, deve aiutarmi. Ho visto qualcosa, qualcosa di terribile." Hunter: "...I'm sorry, I didn't catch any of that. Do you speak English? English?" Isabella: *(leaning forward, eyes wide, speaking faster)* "No, no, ascolti—c'era un uomo, e poi è sparito! Sparito nel nulla! Ho le foto, guardi, guardi qui—" Hunter: "Whoa, slow down. I—look, I have no idea what you're saying. Are you Italian? Italiano?" Isabella: *(nodding rapidly, relieved)* "Sì! Sì, italiana! Finalmente capisce qualcosa. Allora—queste foto, le ho scattate ieri sera, e c'è una figura, vede? Proprio qui, all'angolo." Hunter: *(rubbing his temples)* "Okay. 'Sì' I got. The rest... not so much. You're showing me your camera. These pictures—are they from last night? By the mill?" Isabella: *(pointing emphatically at the screen, voice trembling)* "Il mulino, sì! Esatto! Ero lì per fotografare il tramonto, e poi ho sentito un urlo. Un urlo orribile. E quando mi sono girata, lui non c'era più." Hunter: "The mill. Right. So you were there. And these photos..." *(squinting at the screen)* "Hold on, what is that? In the corner—is that a person?" Isabella: *(grabbing his arm, urgent)* "Sì! Sì! È quello che le sto dicendo! Una persona! E poi—svanito! Capisce ora quanto è importante?" Hunter: "Easy, easy. I think we need to get someone who can translate. This could be important. Can you come down to the station? Station? Polizia?" Isabella: *(hesitant, clutching the camera to her chest)* "La stazione di polizia? Io... sì, va bene. Ma promette di guardare le foto? Prometta!" Hunter: "I'm gonna take that as a yes. Look, just—" *(his phone buzzes; he answers)* "Hunter. ...What? When? ...No, don't touch anything, I'm on my way." *(stands abruptly)* "I'm sorry, miss, I've gotta go. Something's come up." Isabella: *(rising, alarmed)* "Cosa? Se ne va? No, aspetti! Le foto—deve vedere le foto!" Hunter: *(already backing away, holding up a hand)* "Stay here. Or—come to the station. Station. Ask for Hunter. I'll find someone who speaks Italian, I promise. Okay?" Isabella: *(calling after him, frustrated)* "Hunter? Hunter! Ma non ha capito niente di quello che ho detto!" Hunter: *(over his shoulder, hurrying out)* "Sorry! Sì! ...whatever that means." Isabella: *(sinking back into her chair, staring at the camera, whispering)* "...e adesso? Cosa faccio adesso?"
created_at"2026-06-01T12:00:24.49Z" 6/1/2026, 12:00:24 PM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4595
moderation_latency(null)
generation_time22953
tokens_prompt321
tokens_completion804
native_tokens_prompt422
native_tokens_completion1308
native_tokens_completion_images(null)
native_tokens_reasoning65
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"
usage0.03481
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01KamxC1Aray3rn86DxbMf2A"
is_byokfalse
latency1305
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-1780315224-zmUluzlXbeveaSQVQJtg"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780315224-jLaPVbR0TBbwmLWODPyh"
upstream_id"msg_01KamxC1Aray3rn86DxbMf2A"
total_cost0.03481
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"Isabella"
dialogue"Non riesco a crederci... era proprio lì, dietro quella casa..."
detectedLang"it"
heavyLang"it"
scores
it0.8063891577928364
pt0.6323529411764706
es0.6208530805687204
ca0.5703544575725027
ro0.55995599559956
fr0.5520716685330347
en0.5370370370370371
cs0.47506561679790027
eu0.4421199442119944
pl0.3930197268588771
de0.3579454253611557
sv0.3579454253611557
sq0.35275080906148865
tl0.3485342019543974
da0.33884297520661155
et0.33884297520661155
fi0.3265993265993266
sk0.32088285229202035
hr0.3127147766323024
hu0.2805755395683453
lt0.2805755395683453
sl0.27140255009107467
ms0.2523364485981308
yo0.22928709055876687
tr0.16142557651991615
is0.15789473684210525
az0.14893617021276595
lv0.14893617021276595
nl0.14893617021276595
no0.14893617021276595
vi0.14893617021276595
reliabletrue
passestrue
1
name"Hunter"
dialogue"Excuse me, miss. Mind if I sit for a moment? I'm Detective Hunter, Alborn PD. I wanted to ask you about what happened by the old mill last night."
detectedLang"en"
heavyLang"en"
scores
en0.798261949099938
tl0.6034973566490444
da0.524390243902439
no0.5225269343780607
fr0.45953436807095344
ro0.453781512605042
cs0.44349315068493156
it0.4357638888888889
sq0.4257950530035336
ca0.4251179245283018
pt0.39327940261356564
pl0.38986232790988734
nl0.3894802755165936
sk0.38291139240506333
yo0.3758002560819462
sv0.3725868725868726
es0.33898305084745767
hr0.33763586956521735
de0.3172268907563025
sl0.3035714285714286
et0.28361498897869214
hu0.2772424017790956
ms0.22557585385226367
lv0.2073170731707317
lt0.2034313725490196
tr0.17442845046570704
az0.16737830913748933
fi0.12398921832884095
is0.12398921832884095
vi0.12003610108303249
be0.06698564593301436
eu0.06698564593301436
uk0.06069364161849711
reliabletrue
passestrue
2
name"Isabella"
dialogue"Oh—Dio mio, mi ha spaventata! Lei è... un poliziotto? Sì? Per favore, deve aiutarmi. Ho visto qualcosa, qualcosa di terribile."
detectedLang"it"
heavyLang"it"
scores
it0.7994987468671679
ca0.58656330749354
es0.5630802839978154
fr0.49906073888541014
pt0.4981179422835634
ro0.49044585987261147
no0.4583615436696005
yo0.441340782122905
en0.41046425939572584
hr0.3874425727411945
nl0.38697318007662834
sl0.37839937839937837
da0.37254901960784315
de0.36457505957108816
sk0.3485342019543974
sv0.3480032599837001
sq0.3393889347646573
tl0.3254637436762226
hu0.30131004366812225
lv0.2907801418439716
lt0.26806953339432754
cs0.25857275254865614
ms0.23518164435946462
az0.23298178331735378
fi0.22405431619786614
et0.22254616132167152
pl0.21951219512195122
eu0.2047713717693837
tr0.15254237288135594
vi0.10813823857302118
is0.08256880733944955
reliabletrue
passestrue
3
name"Hunter"
dialogue"...I'm sorry, I didn't catch any of that. Do you speak English? English?"
detectedLang"en"
heavyLang"en"
scores
en0.8167313497197067
tl0.6031746031746031
hr0.4378306878306878
no0.43029490616621985
cs0.4264507422402159
sv0.41460055096418735
it0.40559440559440557
yo0.39544807965860596
ca0.38936781609195403
pl0.3876080691642651
pt0.37591776798825255
sq0.371301775147929
de0.3511450381679389
da0.33176100628930816
sk0.32432432432432434
vi0.2904841402337229
ro0.27597955706984667
is0.26343154246100525
nl0.22867513611615245
sl0.22018348623853207
fr0.17635658914728683
ms0.1448692152917505
be0.1414141414141414
tr0.1414141414141414
hu0.1361788617886179
az0.1290983606557377
et0.1290983606557377
lt0.1290983606557377
lv0.1290983606557377
uk0.1290983606557377
reliabletrue
passestrue
4
name"Isabella"
dialogue"No, no, ascolti—c'era un uomo, e poi è sparito! Sparito nel nulla! Ho le foto, guardi, guardi qui—"
detectedLang"it"
heavyLang"it"
scores
it0.8211852861035424
ca0.580335731414868
es0.5759289176090469
fr0.5485812553740327
pt0.4947064485081809
ro0.47968285431119917
yo0.47761194029850745
no0.45083682008368203
lv0.44678609062170704
en0.38452520515826494
tl0.3667068757539204
hr0.36363636363636365
et0.3502475247524753
sk0.3453865336658354
sl0.3320610687022901
is0.3181818181818182
cs0.30921052631578944
sq0.3
pl0.2953020134228188
sv0.29149797570850206
lt0.2886178861788618
da0.2866847826086956
de0.27884615384615385
fi0.2510699001426534
hu0.25
tr0.23133235724743775
az0.2081447963800905
nl0.1935483870967742
reliabletrue
passestrue
5
name"Hunter"
dialogue"Whoa, slow down. I—look, I have no idea what you're saying. Are you Italian? Italiano?"
detectedLang"en"
heavyLang"en"
scores
en0.7893569844789357
it0.519716885743175
tl0.5087900723888314
es0.489247311827957
ca0.47222222222222227
ro0.45023148148148145
sq0.43653618030842234
pt0.43452380952380953
da0.42073170731707316
tr0.40025252525252525
no0.391025641025641
hr0.3863049095607235
pl0.3675099866844208
cs0.33751743375174337
ms0.3233618233618234
sv0.2931547619047619
lv0.2899850523168909
sk0.2554858934169279
yo0.24841772151898736
fi0.22003284072249588
lt0.2096505823627288
az0.20435510887772196
be0.12844036697247707
sl0.12844036697247707
hu0.12361623616236161
de0.1171003717472119
et0.1171003717472119
fr0.1171003717472119
is0.1171003717472119
nl0.1171003717472119
uk0.1171003717472119
vi0.1171003717472119
reliabletrue
passestrue
6
name"Isabella"
dialogue"Sì! Sì, italiana! Finalmente capisce qualcosa. Allora—queste foto, le ho scattate ieri sera, e c'è una figura, vede? Proprio qui, all'angolo."
detectedLang"it"
heavyLang"it"
scores
it0.8097653772986683
pt0.6168582375478927
ro0.6166950596252129
fr0.6026490066225165
es0.594959495949595
ca0.5798319327731093
en0.5033112582781457
sq0.47613504074505236
no0.4152046783625731
sk0.40594059405940597
sl0.4019933554817276
de0.3860845839017735
da0.3822923816060398
tl0.36886395511921455
yo0.34497816593886466
hr0.337260677466863
cs0.33035714285714285
nl0.32228915662650603
pl0.2907801418439716
eu0.27826784282277467
et0.267100977198697
fi0.2353440951571793
lt0.23011120615911035
sv0.2194275802254987
lv0.18404351767905713
tr0.1758241758241758
hu0.1627906976744186
az0.11937377690802348
ms0.11591355599214145
is0.06928645294725957
reliabletrue
passestrue
7
name"Hunter"
dialogue"Okay. 'Sì' I got. The rest... not so much. You're showing me your camera. These pictures—are they from last night? By the mill?"
detectedLang"en"
heavyLang"en"
scores
en0.8106060606060606
tl0.6452223273415326
nl0.4322482967448903
no0.4296577946768061
ro0.4221879815100154
fr0.4052339413164156
sq0.38016528925619836
it0.3765586034912718
da0.3744787322768974
ca0.35344827586206895
yo0.3444055944055944
sv0.33035714285714285
de0.3119266055045872
et0.30747922437673125
sk0.2951127819548872
ms0.2937853107344633
pl0.2454728370221328
sl0.2416582406471183
cs0.23935091277890466
es0.21135646687697163
vi0.17763157894736845
tr0.1648106904231626
lv0.16294642857142855
hr0.156355455568054
pt0.10501193317422433
fi0.09090909090909091
be0.08536585365853659
hu0.08200734394124846
az0.07749077490774908
is0.07749077490774908
lt0.07749077490774908
uk0.07749077490774908
reliabletrue
passestrue
8
name"Isabella"
dialogue"Il mulino, sì! Esatto! Ero lì per fotografare il tramonto, e poi ho sentito un urlo. Un urlo orribile. E quando mi sono girata, lui non c'era più."
detectedLang"it"
heavyLang"it"
scores
it0.8047287312645134
fr0.5507527926177757
ca0.5418524021792968
ro0.5365731462925851
es0.532119372787051
pt0.49945887445887444
yo0.38863185723727695
no0.37415426251691475
en0.3598615916955017
tl0.3576388888888889
sq0.32432432432432434
sl0.32333577176298467
hr0.3173431734317343
lv0.3158284023668639
de0.3153219837157661
tr0.3112434847356664
sk0.3013595166163142
cs0.300302571860817
lt0.29496951219512196
sv0.26703645007923926
eu0.25463336019339244
az0.24489795918367346
da0.2393092105263158
ms0.23427152317880795
pl0.23363711681855842
nl0.22980849292256453
et0.2127659574468085
fi0.17114695340501793
hu0.14903403863845444
vi0.0966796875
is0.06754032258064516
reliabletrue
passestrue
9
name"Hunter"
dialogue"Hold on, what is that? In the corner—is that a person?"
detectedLang"en"
heavyLang"en"
scores
en0.8352553542009885
tl0.6632996632996633
nl0.6445497630331753
yo0.6291718170580964
da0.6183206106870229
fr0.6073298429319371
ro0.5962314939434724
it0.5934959349593496
de0.592391304347826
sv0.5804195804195804
no0.5708154506437768
hu0.5542347696879644
pl0.5253164556962026
ca0.52
ms0.5033112582781457
is0.5008319467554077
sq0.4983277591973244
pt0.4809688581314879
et0.4791666666666667
cs0.469964664310954
sk0.46808510638297873
hr0.4633273703041145
sl0.4485294117647059
es0.4230769230769231
az0.4152046783625731
fi0.4152046783625731
lt0.33920704845814975
lv0.3258426966292135
tr0.32432432432432434
hi0.21875
eu0.1891891891891892
vi0.1891891891891892
reliabletrue
passestrue
10
name"Isabella"
dialogue"Sì! Sì! È quello che le sto dicendo! Una persona! E poi—svanito! Capisce ora quanto è importante?"
detectedLang"it"
heavyLang"it"
scores
it0.8208420424007166
es0.6856993190151912
pt0.6185632549268913
fr0.6050032916392363
tl0.5943204868154158
ro0.5918367346938775
ca0.5636363636363636
yo0.4746059544658494
en0.45155393053016457
sq0.43396226415094336
no0.3710691823899371
de0.33554817275747506
lv0.3250843644544432
ms0.3071593533487298
sl0.30151338766006985
hu0.2840095465393795
sv0.26560587515299877
tr0.26560587515299877
da0.25650557620817843
az0.25
hr0.25
fi0.20634920634920634
pl0.1902834008097166
lt0.1880920162381597
nl0.18699186991869918
cs0.18256130790190736
sk0.18256130790190736
is0.1780821917808219
et0.16897506925207756
vi0.14163090128755365
eu0.13169319826338638
reliabletrue
passestrue
11
name"Hunter"
dialogue"Easy, easy. I think we need to get someone who can translate. This could be important. Can you come down to the station? Station? Polizia?"
detectedLang"en"
heavyLang"en"
scores
en0.8285714285714286
tl0.5906113537117904
it0.5476477683956574
no0.5373226403454658
fr0.5353159851301116
da0.5155038759689923
ro0.5120364346128823
nl0.47589098532494756
ca0.46808510638297873
sv0.44933920704845814
yo0.44320712694877507
pl0.43820224719101125
lt0.43566591422121903
hr0.4204018547140649
cs0.4126859827721222
sq0.39999999999999997
es0.36278674596431604
pt0.3617021276595745
tr0.3595217762596072
sk0.35456110154905335
et0.3528904227782571
lv0.35008665511265163
az0.31002759889604414
de0.3093922651933701
sl0.3081180811808118
ms0.2704280155642024
hu0.2566897918731417
eu0.2537313432835821
fi0.1812227074235808
is0.17853231106243156
vi0.16759156492785796
zh0.09310761789600969
be0.08536585365853659
uk0.07749077490774908
reliabletrue
passestrue
12
name"Isabella"
dialogue"La stazione di polizia? Io... sì, va bene. Ma promette di guardare le foto? Prometta!"
detectedLang"it"
heavyLang"it"
scores
it0.8228147148160648
ro0.6469401479488904
fr0.6366782006920415
es0.5643153526970954
ca0.5333333333333334
yo0.5299910474485229
tl0.48326771653543305
sq0.47657028913260224
no0.4712990936555891
pl0.4414893617021277
sv0.4230769230769231
hu0.4160177975528365
ms0.4134078212290503
sl0.40340909090909094
hr0.38596491228070173
de0.3558282208588957
nl0.3558282208588957
pt0.35424354243542433
da0.3379571248423708
vi0.33035714285714285
et0.3208279430789133
sk0.31640625
en0.31462140992167104
tr0.30463576158940403
cs0.2886178861788618
fi0.2677824267782427
eu0.2636746143057504
az0.22451994091580502
lt0.22451994091580502
lv0.22451994091580502
is0.2033383915022762
reliabletrue
passestrue
13
name"Hunter"
dialogue"I'm sorry, miss, I've gotta go. Something's come up."
detectedLang"en"
heavyLang"en"
scores
en0.7350492051476154
it0.5679012345679012
tl0.5145631067961165
pt0.3371212121212121
fi0.24242424242424243
hu0.23580786026200873
pl0.23580786026200873
es0.1822429906542056
nl0.1822429906542056
sv0.18032786885245902
yo0.18032786885245902
reliabletrue
passestrue
14
name"Isabella"
dialogue"Cosa? Se ne va? No, aspetti! Le foto—deve vedere le foto!"
detectedLang"it"
heavyLang"it"
scores
it0.8007968127490039
ro0.7304582210242587
es0.698189134808853
ca0.6972754793138244
fr0.6547756041426928
sl0.6420047732696896
pt0.6328029375764993
hr0.5750708215297451
cs0.5508982035928144
fi0.5398773006134969
no0.5398773006134969
tr0.5260663507109005
lv0.49748743718592964
sq0.49748743718592964
da0.471830985915493
sk0.46524064171123
yo0.43289224952741023
hu0.375
nl0.375
en0.3684210526315789
de0.3562231759656652
pl0.3150684931506849
lt0.27007299270072993
sv0.2227979274611399
ms0.21052631578947367
tl0.21052631578947367
is0.20424403183023873
et0.16434540389972147
reliabletrue
passestrue
15
name"Hunter"
dialogue"Stay here. Or—come to the station. Station. Ask for Hunter. I'll find someone who speaks Italian, I promise. Okay?"
detectedLang"en"
heavyLang"en"
scores
en0.8066811011444479
tl0.629080118694362
da0.5920365535248042
no0.5629370629370629
sq0.5074862096138691
it0.4881244881244881
fr0.4769874476987448
yo0.4712351945854484
sv0.4569939183318853
ro0.4560487380330722
cs0.44836716681376876
hr0.423963133640553
nl0.3996157540826129
ms0.39320388349514557
de0.3896484375
et0.3872549019607844
pl0.38241106719367585
sl0.37996031746031744
pt0.36612576064908725
lt0.32795698924731176
ca0.296962879640045
sk0.2961711711711712
lv0.284077892325315
tr0.28325688073394495
fi0.2568370986920333
es0.25239234449760767
az0.22839506172839508
zh0.10968660968660969
be0.10071942446043164
hu0.09682080924855492
is0.09156976744186046
uk0.09156976744186046
vi0.09156976744186046
reliabletrue
passestrue
16
name"Isabella"
dialogue"Hunter? Hunter! Ma non ha capito niente di quello che ho detto!"
detectedLang"it"
heavyLang"it"
scores
it0.8297872340425532
fr0.6101364522417154
no0.5652173913043478
tl0.5575221238938053
es0.5203836930455635
ca0.5079950799507995
ms0.49238578680203043
en0.46808510638297873
ro0.4482758620689655
sv0.4244604316546763
pt0.4152046783625731
sk0.39849624060150374
da0.3939393939393939
de0.37888198757763975
yo0.3442622950819672
sq0.34318555008210183
hu0.33774834437086093
vi0.30434782608695654
eu0.2920353982300885
nl0.27927927927927926
pl0.21104536489151873
cs0.20948616600790515
et0.2
fi0.18864097363083165
lt0.13978494623655913
sl0.12854030501089325
tr0.12854030501089325
reliabletrue
passestrue
17
name"Hunter"
dialogue"Sorry! Sì! ...whatever that means."
detectedLang"en"
heavyLang"en"
scores
en0.7960108794197642
tl0.5472837022132797
it0.4851258581235698
pt0.43324937027707805
yo0.42748091603053434
da0.2902208201892744
nl0.281150159744409
no0.281150159744409
sv0.281150159744409
fr0.24242424242424243
reliabletrue
passestrue
18
name"Isabella"
dialogue"...e adesso? Cosa faccio adesso?"
detectedLang"it"
heavyLang"it"
scores
it0.8348017621145375
pt0.7175141242937854
es0.504950495049505
sq0.5
yo0.4318181818181818
ca0.40711462450592883
ro0.3775933609958506
pl0.35344827586206895
fr0.33920704845814975
hu0.33920704845814975
de0.3181818181818182
en0.3181818181818182
tr0.3181818181818182
is0.3087557603686636
lt0.3087557603686636
sl0.3087557603686636
az0.29577464788732394
da0.29577464788732394
et0.29577464788732394
fi0.29577464788732394
hr0.29577464788732394
lv0.29577464788732394
nl0.29577464788732394
no0.29577464788732394
sv0.29577464788732394
tl0.29577464788732394
reliabletrue
passestrue