Run: 2026-05-29-01KSSK1QNVE9K1XRXY4Y5VTGZQ

Run Details

Model:
Claude Opus 4.8 (Reasoning)
Test:
Language Writing
Scenario:
Character dialogue (German) in a story
Duration:
17.8s
Cost:
$0.030705
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="Melanie"> Melanie is a 30-year old college student on a study abroad program. Born in Germany, she is fluent in German 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 German, 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: Melanie 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 German, and Hunter looks confused. They talk for a while, until Hunter gets a call and has to leave. Return the dialogue between Melanie and Hunter as a voice sheet: Melanie: "..." Hunter: "..."

Model response

AI
Melanie: *(murmuring to herself, scrolling through her camera)* "So viele schöne Bilder... aber dieses hier... was ist das nur?" Hunter: "Excuse me, miss? Mind if I ask you a few questions? I'm Detective Hunter, Alborn PD." Melanie: *(startled, looking up)* "Oh! Entschuldigung, ich habe Sie nicht kommen sehen. Kann ich Ihnen helfen?" Hunter: "...Right. I'm investigating some disappearances around town. Were you near the orchard last night?" Melanie: *(voice trembling)* "Der Obstgarten... ja, ich war dort. Ich habe Fotos gemacht. Aber dann... dann habe ich etwas gehört. Schreie. Es war schrecklich." Hunter: "Okay, I have absolutely no idea what you just said. You don't speak any English, do you?" Melanie: *(shaking, gesturing to her camera)* "Bitte, sehen Sie sich das an. Hier, auf diesem Bild. Da ist jemand. Im Schatten. Ich glaube, ich habe etwas gesehen, das ich nicht hätte sehen sollen." Hunter: "Whoa, whoa, slow down. You're shaking like a leaf. Is that— are you showing me a photo?" Melanie: *(pointing urgently at the screen)* "Ja, ja! Schauen Sie! Diese Gestalt, hier. Letzte Nacht im Obstgarten. Verstehen Sie? Ich habe Angst." Hunter: *(leaning in, squinting at the screen)* "Huh. There's... something in the background there. Can't make it out. Listen, I need you to come down to the station, find someone who can translate—" Melanie: "Ich verstehe nicht. Können Sie mir helfen? Bitte, ich weiß nicht, was ich tun soll." Hunter: *(rubbing his temple)* "This would be a whole lot easier if we spoke the same language, lady." *(phone buzzes)* "Hold that thought." Melanie: *(quietly)* "Bitte gehen Sie nicht. Ich habe Angst, allein zu sein." Hunter: *(answering phone)* "Hunter. ...What? Another one? Where?" *(standing abruptly)* "Yeah, I'm on my way." Melanie: "Was ist los? Wohin gehen Sie?" Hunter: *(holding up a hand)* "I gotta go. Stay put— here, take my card." *(sliding a card across the table)* "Find a translator and call me. That photo, keep it safe. Don't delete anything, understand? The photo— safe." *(tapping the camera)* Melanie: *(clutching the camera, nodding faintly)* "Das Foto... sicher. Ja. Ich verstehe... ich glaube." Hunter: "Good enough. I'll be back." *(hurrying out)* Melanie: *(alone, staring at the screen, whispering)* "Bitte beeilen Sie sich, Detective. Ich glaube nicht, dass ich hier sicher bin."
created_at"2026-05-29T10:04:03.141Z" 5/29/2026, 10:04:03 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2801
moderation_latency(null)
generation_time17797
tokens_prompt319
tokens_completion673
native_tokens_prompt416
native_tokens_completion1145
native_tokens_completion_images(null)
native_tokens_reasoning46
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"
usage0.030705
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01DZQtnWAcr77jWEh6i8Pruh"
is_byokfalse
latency1192
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-1780049043-NzfxKtV8fJf4wkl26lbK"
session_id(null)
api_type"completions"
id"gen-1780049043-cr3eOea3Z6s0sZKFUQNz"
upstream_id"msg_01DZQtnWAcr77jWEh6i8Pruh"
total_cost0.030705
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"Melanie"
dialogue"So viele schöne Bilder... aber dieses hier... was ist das nur?"
detectedLang"de"
heavyLang"de"
scores
de0.8415046491969569
nl0.5136186770428015
en0.4806094182825485
no0.4292237442922375
sk0.42835365853658536
pt0.4131455399061033
yo0.36224489795918363
tr0.34210526315789475
sv0.3218806509945751
tl0.3131868131868132
sl0.2870722433460076
fi0.27606177606177607
az0.2454728370221328
da0.23469387755102045
hi0.2203742203742204
eu0.21548117154811713
pl0.21383647798742136
ms0.21052631578947367
vi0.20886075949367086
es0.20718816067653278
ca0.20042643923240938
fr0.19006479481641467
lv0.1812227074235808
it0.16666666666666666
ro0.16666666666666666
et0.1648106904231626
ru0.1648106904231626
reliabletrue
passestrue
1
name"Hunter"
dialogue"Excuse me, miss? Mind if I ask you a few questions? I'm Detective Hunter, Alborn PD."
detectedLang"en"
heavyLang"en"
scores
en0.7708250298923874
it0.609375
fr0.58810888252149
tl0.5576923076923077
ca0.5325203252032521
ro0.5267489711934157
pt0.5247933884297521
sq0.46808510638297873
es0.45907808090310437
no0.4465832531280077
sv0.4323790720631787
nl0.4096509240246407
cs0.40228690228690234
da0.3960084033613445
hr0.3561030235162374
hu0.35101580135440186
et0.3495475113122172
sl0.3458475540386803
de0.2936117936117936
pl0.2866004962779156
ms0.26376440460947503
tr0.26376440460947503
yo0.26376440460947503
sk0.25997425997426
lt0.20138888888888887
fi0.1935483870967742
is0.1935483870967742
az0.18785310734463279
lv0.18785310734463279
vi0.18785310734463279
be0.10852713178294573
eu0.10852713178294573
uk0.0987460815047022
reliabletrue
passestrue
2
name"Melanie"
dialogue"Oh! Entschuldigung, ich habe Sie nicht kommen sehen. Kann ich Ihnen helfen?"
detectedLang"de"
heavyLang"de"
scores
de0.8322147651006712
nl0.5759117896522477
no0.3857493857493857
da0.33244325767690247
pl0.31224209078404397
sv0.3065187239944522
fi0.2795389048991354
sk0.19871794871794873
eu0.18699186991869918
ms0.1830065359477124
et0.18166939443535188
cs0.16666666666666666
hu0.1423670668953688
is0.13494809688581316
reliabletrue
passestrue
3
name"Hunter"
dialogue"...Right. I'm investigating some disappearances around town. Were you near the orchard last night?"
detectedLang"en"
heavyLang"en"
scores
en0.810904506775922
tl0.6668517490283177
fr0.5575221238938053
nl0.4884910485933504
pt0.43396226415094336
no0.4263862332695985
de0.3717277486910995
ms0.3548387096774194
ro0.33993399339933994
it0.336283185840708
ca0.33184855233853006
sv0.3181818181818182
da0.31662870159453305
es0.2840095465393795
cs0.25742574257425743
et0.2555831265508685
hr0.2537313432835821
sq0.24623115577889448
yo0.23175416133162616
lv0.1935483870967742
is0.18699186991869918
sk0.18699186991869918
lt0.17355371900826447
sl0.17355371900826447
az0.16434540389972147
fi0.08952959028831564
reliabletrue
passestrue
4
name"Melanie"
dialogue"Der Obstgarten... ja, ich war dort. Ich habe Fotos gemacht. Aber dann... dann habe ich etwas gehört. Schreie. Es war schrecklich."
detectedLang"de"
heavyLang"de"
scores
de0.8234961875176504
nl0.5318352059925093
ca0.46213425129087776
es0.41148775894538603
da0.38484251968503935
no0.3756243756243756
lv0.37122736418511065
sk0.3602865916069601
sv0.34279705573080965
pl0.2889647326507395
sl0.2774566473988439
fi0.27494199535962877
lt0.2724097788125727
tr0.2672919109026964
et0.2577197149643705
en0.23406862745098037
pt0.18619791666666666
sq0.18086500655307994
hu0.14030261348005504
eu0.11847672778561354
fr0.11347517730496455
ms0.11095305832147938
yo0.10714285714285714
cs0.09682080924855492
hr0.09682080924855492
it0.09156976744186046
az0.08625730994152046
ro0.08625730994152046
reliabletrue
passestrue
5
name"Hunter"
dialogue"Okay, I have absolutely no idea what you just said. You don't speak any English, do you?"
detectedLang"en"
heavyLang"en"
scores
en0.8125937031484258
ca0.5798319327731093
da0.4939271255060729
sk0.46977730646871685
sv0.4692144373673036
tl0.4669509594882729
hr0.46351931330472107
pt0.4588744588744588
sq0.4324631101021567
cs0.43117178612059154
es0.414519906323185
pl0.4075829383886255
no0.39320388349514557
ro0.37421777221526903
et0.3564993564993565
it0.35064935064935066
lv0.3394980184940555
de0.2877492877492877
vi0.258160237388724
yo0.24812030075187969
tr0.2401215805471125
ms0.2295839753466872
fr0.20634920634920634
nl0.20634920634920634
sl0.1935483870967742
fi0.13494809688581316
be0.12280701754385964
hu0.11816578483245149
az0.11190053285968028
is0.11190053285968028
lt0.11190053285968028
uk0.11190053285968028
reliabletrue
passestrue
6
name"Melanie"
dialogue"Bitte, sehen Sie sich das an. Hier, auf diesem Bild. Da ist jemand. Im Schatten. Ich glaube, ich habe etwas gesehen, das ich nicht hätte sehen sollen."
detectedLang"de"
heavyLang"de"
scores
de0.8409133445629796
nl0.5052386495925495
da0.3871665465032444
pl0.3541033434650456
no0.3491577335375191
sv0.32
fi0.3055555555555556
en0.30098684210526316
it0.28870292887029286
eu0.2875104777870914
tr0.28451178451178455
pt0.25569176882662
yo0.2321589882565492
fr0.222323879231473
ro0.2194674012855831
sk0.2100371747211896
et0.20930232558139533
hr0.20560747663551404
sl0.1912464319695528
vi0.16829745596868884
ms0.1650294695481336
sq0.14914914914914917
az0.1108786610878661
hi0.1108786610878661
cs0.10526315789473685
hu0.09957627118644068
es0.06900328587075576
tl0.06900328587075576
reliabletrue
passestrue
7
name"Hunter"
dialogue"Whoa, whoa, slow down. You're shaking like a leaf. Is that— are you showing me a photo?"
detectedLang"en"
heavyLang"en"
scores
en0.8071457572066585
tl0.6160064672594988
nl0.509297520661157
fr0.4968220338983051
no0.4391971664698937
hu0.39490445859872614
pt0.3863049095607235
cs0.38551099611901685
ro0.3766404199475065
yo0.33473389355742295
is0.3338008415147265
es0.3300423131170663
sq0.31654676258992803
it0.3014705882352941
sl0.2725880551301685
et0.24960505529225907
de0.23633440514469453
ms0.23633440514469453
fi0.22512234910277326
ca0.22258592471358432
sv0.22003284072249588
sk0.21487603305785125
hr0.1908006814310051
pl0.1810344827586207
lt0.14721723518850988
hi0.1394927536231884
tr0.1394927536231884
da0.1316270566727605
az0.12844036697247707
eu0.12844036697247707
lv0.12844036697247707
vi0.12844036697247707
reliabletrue
passestrue
8
name"Melanie"
dialogue"Ja, ja! Schauen Sie! Diese Gestalt, hier. Letzte Nacht im Obstgarten. Verstehen Sie? Ich habe Angst."
detectedLang"de"
heavyLang"de"
scores
de0.816289038579302
nl0.6242955541640577
sk0.4360902255639098
pl0.40298507462686567
ca0.40059940059940063
es0.3795243019648397
da0.3637327677624602
no0.3541442411194833
fi0.35135135135135137
sv0.3456924754634678
it0.281437125748503
fr0.2779783393501805
eu0.2490613266583229
sl0.22380336351875807
et0.20424403183023873
pt0.20424403183023873
is0.19678714859437751
sq0.18256130790190736
ro0.1780821917808219
lv0.16083916083916083
hr0.1452991452991453
cs0.1137370753323486
lt0.1137370753323486
yo0.1111111111111111
hu0.10714285714285714
tr0.1044776119402985
en0.09502262443438914
az0.08952959028831564
reliabletrue
passestrue
9
name"Hunter"
dialogue"Huh. There's... something in the background there. Can't make it out. Listen, I need you to come down to the station, find someone who can translate—"
detectedLang"en"
heavyLang"en"
scores
en0.8232480765231857
tl0.609015639374425
da0.49763593380614657
sv0.49704142011834324
no0.49162679425837325
de0.47433518862090285
it0.45997458703939004
yo0.4337108594270486
sq0.40476190476190477
nl0.3997175141242938
pl0.3906810035842294
ro0.38804895608351336
hr0.38450398262128893
cs0.36990363232023726
lv0.36424831712789824
sl0.3491577335375191
fr0.33749025720966486
sk0.3117408906882591
ms0.2910758965804838
az0.2892976588628763
tr0.28330522765598654
et0.2735042735042735
lt0.26660914581535805
ca0.25438596491228066
fi0.2410714285714286
pt0.20634920634920634
es0.20411985018726592
eu0.17794970986460348
vi0.15084915084915085
hu0.1474423269809428
is0.1353001017293998
zh0.08306364617044228
be0.07608695652173912
uk0.06900328587075576
reliabletrue
passestrue
10
name"Melanie"
dialogue"Ich verstehe nicht. Können Sie mir helfen? Bitte, ich weiß nicht, was ich tun soll."
detectedLang"de"
heavyLang"de"
scores
de0.8364888123924269
nl0.5950554134697357
no0.35020519835841313
pl0.3233618233618234
en0.309593023255814
yo0.29629629629629634
hu0.27480916030534347
sv0.2578125
it0.23633440514469453
is0.23263327948303714
az0.22258592471358432
sk0.2070116861435726
et0.19217687074829934
fi0.18244406196213425
cs0.1739130434782609
hr0.1739130434782609
ms0.15630550621669628
lt0.1394927536231884
da0.13636363636363635
es0.1171003717472119
fr0.1171003717472119
pt0.1171003717472119
ca0.11048689138576778
ro0.11048689138576778
sq0.11048689138576778
reliabletrue
passestrue
11
name"Hunter"
dialogue"Hold that thought."
detectedLang"en"
heavyLang"en"
scores
en0.848714069591528
da0.5283018867924528
tl0.5
reliabletrue
passestrue
12
name"Melanie"
dialogue"Bitte gehen Sie nicht. Ich habe Angst, allein zu sein."
detectedLang"de"
heavyLang"de"
scores
de0.8449131513647643
nl0.659400544959128
fr0.4292237442922375
da0.39999999999999997
no0.39123376623376627
pl0.37707641196013286
et0.3444055944055944
it0.3042671614100185
fi0.2964352720450282
sk0.24849699398797598
eu0.23469387755102045
cs0.21052631578947367
en0.15730337078651685
tl0.15730337078651685
reliabletrue
passestrue
13
name"Hunter"
dialogue"Yeah, I'm on my way."
detectedLang"en"
heavyLang"en"
scores
en0.7964169381107492
pl0.584717607973422
cs0.5629370629370629
sk0.5629370629370629
tl0.5614035087719298
et0.5519713261648745
fi0.5454545454545454
fr0.4658119658119659
ca0.44196428571428575
hr0.4131455399061033
hi0.40191387559808617
yo0.375
reliabletrue
passestrue
14
name"Melanie"
dialogue"Was ist los? Wohin gehen Sie?"
detectedLang"de"
heavyLang"de"
scores
de0.7963340122199593
nl0.5515695067264574
es0.45652173913043476
en0.42857142857142855
eu0.36507936507936506
pl0.358974358974359
hi0.3464052287581699
tr0.3197278911564626
ca0.3055555555555556
fi0.3055555555555556
yo0.30313588850174217
reliabletrue
passestrue
15
name"Hunter"
dialogue"Find a translator and call me. That photo, keep it safe. Don't delete anything, understand? The photo— safe."
detectedLang"en"
heavyLang"en"
scores
en0.8185249709639955
no0.5722108145106092
tl0.5716244002741604
da0.542794440380395
sq0.527588813303099
nl0.4951534733441034
fr0.4707874682472481
sv0.4630584192439862
ro0.45223488168273446
pt0.41806331471135944
ms0.4036259541984733
yo0.3908382066276803
de0.38665358194308147
es0.37686939182452645
sl0.37374749498997994
cs0.36740890688259115
et0.3609406952965235
it0.34895833333333337
pl0.33862433862433866
sk0.31091510474090406
ca0.3078626799557032
hu0.2774566473988439
hr0.27409988385598144
lv0.26297169811320753
tr0.25595238095238093
vi0.20178799489144317
is0.1925064599483204
lt0.1925064599483204
fi0.18086500655307994
eu0.17979002624671916
az0.1710875331564987
hi0.10968660968660969
reliabletrue
passestrue
16
name"Melanie"
dialogue"Das Foto... sicher. Ja. Ich verstehe... ich glaube."
detectedLang"de"
heavyLang"de"
scores
de0.8231511254019291
pt0.5115452930728241
sk0.507168458781362
pl0.48405253283302063
ca0.45219123505976094
da0.44668008048289737
nl0.44668008048289737
sv0.44668008048289737
et0.4364754098360656
it0.4294605809128631
lv0.39293598233995586
fr0.3663594470046083
sl0.36342592592592593
fi0.3574766355140187
en0.34523809523809523
no0.34523809523809523
sq0.3276283618581907
es0.30730478589420657
ro0.30730478589420657
lt0.21875
yo0.21428571428571427
hu0.207492795389049
tl0.207492795389049
is0.19590643274853803
az0.17664670658682635
cs0.17664670658682635
hr0.17664670658682635
reliabletrue
passestrue
17
name"Hunter"
dialogue"Good enough. I'll be back."
detectedLang"en"
heavyLang"en"
scores
en0.8201438848920863
tl0.5714285714285714
hu0.43820224719101125
lt0.42748091603053434
yo0.4230769230769231
reliabletrue
passestrue
18
name"Melanie"
dialogue"Bitte beeilen Sie sich, Detective. Ich glaube nicht, dass ich hier sicher bin."
detectedLang"de"
heavyLang"de"
scores
de0.8260073260073261
nl0.5401742497579864
en0.4483159117305459
fr0.4424882629107981
it0.4025157232704403
da0.39720812182741116
tl0.3870967741935484
ro0.3466299862448418
no0.3384401114206128
sv0.33286516853932585
pl0.3233618233618234
tr0.3014705882352941
ca0.27480916030534347
es0.2725880551301685
cs0.2658423493044822
pt0.26356589147286824
sk0.2070116861435726
et0.19217687074829934
sq0.16373239436619716
eu0.15630550621669628
ms0.15630550621669628
fi0.1316270566727605
hr0.12361623616236161
sl0.12361623616236161
reliabletrue
passestrue