Run: 2026-06-01-01KT1GE3GC0KY4GZAE6YVKB4C2

Run Details

Model:
Claude Opus 4.8 (Reasoning, Low)
Test:
Language Writing
Scenario:
Character dialogue (German) in a story
Duration:
18.9s
Cost:
$0.031755
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 photos)* "Das kann doch nicht sein... das habe ich wirklich gesehen?" Hunter: "Excuse me, miss. Mind if I ask you a few questions? Detective Hunter, Alborn PD." Melanie: *(startled, looking up)* "Oh! Entschuldigung, ich... ich habe Sie nicht kommen sehen." Hunter: "I'll take that as a yes. There've been some disappearances around town. Three people in the last two weeks. You were near the orchard last night, weren't you?" Melanie: *(eyes widening, clutching her camera)* "Der Obstgarten... ja. Ich war dort, um Fotos zu machen. Aber dann... dann habe ich etwas gesehen. Etwas Schreckliches." Hunter: *(brow furrowing)* "I'm... not following. You wanna run that by me in English?" Melanie: "Ich verstehe Sie ein bisschen, aber ich kann nicht antworten. Mein Englisch ist... nicht gut. Gar nicht gut." *(shaking her head, frustrated)* Hunter: "Great. Just great." *(rubbing the back of his neck)* "You don't speak English. Of course you don't." Melanie: *(leaning forward urgently, turning the camera toward him)* "Aber sehen Sie! Hier, auf dem Foto! Da war jemand zwischen den Bäumen. Eine Gestalt. Ich glaube, es hängt mit den vermissten Menschen zusammen!" Hunter: *(squinting at the screen)* "Whoa, slow down. Is that—is that a photo? You got something on there?" Melanie: "Ja, ja! Genau das! Sehen Sie die Person? Sie war ganz still, und dann verschwand sie einfach. Ich hatte solche Angst." Hunter: "Okay, okay. I can't understand a word, but that picture... that's worth something." *(pulling out a notepad)* "I'm gonna need a translator. Don't go anywhere, alright? You—stay. Here." *(gesturing emphatically at the table)* Melanie: *(nodding slowly, uncertain)* "Sie wollen, dass ich bleibe? Ich... ich glaube, das verstehe ich." Hunter: "Good. Stay put." *(Hunter's phone rings)* Hunter: *(answering)* "Hunter. ...What? When? ...No, I'm on my way. Don't touch anything until I get there." *(hanging up, expression hardening)* Melanie: *(reading his face)* "Ist etwas passiert? Sie sehen so... besorgt aus." Hunter: "I gotta go. Another one's missing." *(standing, pointing at her camera, then at her)* "That camera. Those photos. Don't delete anything. I'll be back. You understand? Back." Melanie: *(holding the camera protectively)* "Die Kamera... ja. Ich werde nichts löschen. Versprochen." Hunter: "I really hope that meant yes." *(tossing a card on the table)* "Stay safe." Melanie: *(watching him leave, whispering)* "Seien Sie vorsichtig, Detective..."
created_at"2026-06-01T11:52:18.195Z" 6/1/2026, 11:52:18 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2992
moderation_latency(null)
generation_time18829
tokens_prompt319
tokens_completion719
native_tokens_prompt416
native_tokens_completion1187
native_tokens_completion_images(null)
native_tokens_reasoning50
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"
usage0.031755
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_014i4dEXpTxY8B97sEdDXJwg"
is_byokfalse
latency1188
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-1780314738-lS5yCd6ZlCbG7g2mXaTN"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780314738-ZONg0NrbvJOiARMNqcvU"
upstream_id"msg_014i4dEXpTxY8B97sEdDXJwg"
total_cost0.031755
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"Das kann doch nicht sein... das habe ich wirklich gesehen?"
detectedLang"de"
heavyLang"de"
scores
de0.857830271216098
pt0.3380855397148676
nl0.30851063829787234
sk0.27616926503340755
eu0.26136363636363635
pl0.26136363636363635
fr0.2562929061784897
cs0.23529411764705882
fi0.21307506053268765
is0.1935483870967742
no0.1935483870967742
reliabletrue
passestrue
1
name"Hunter"
dialogue"Excuse me, miss. Mind if I ask you a few questions? Detective Hunter, Alborn PD."
detectedLang"en"
heavyLang"en"
scores
en0.7688104245481294
it0.6199032480995161
fr0.5988329686360321
tl0.5686274509803921
ca0.5435684647302904
ro0.5378151260504201
pt0.5358649789029536
sq0.4791666666666667
es0.4701348747591522
no0.4575936883629191
sv0.4433198380566802
nl0.4204425711275026
cs0.4130202774813233
da0.4066882416396979
hr0.3663594470046083
hu0.3612078977932636
et0.359720605355064
sl0.3559718969555035
de0.302915082382763
pl0.29577464788732394
ms0.2724867724867725
tr0.2724867724867725
yo0.2724867724867725
sk0.26861702127659576
lt0.20863309352517986
fi0.2005813953488372
is0.2005813953488372
az0.19472913616398244
lv0.19472913616398244
vi0.19472913616398244
be0.11290322580645161
eu0.11290322580645161
uk0.10277324632952692
reliabletrue
passestrue
2
name"Melanie"
dialogue"Oh! Entschuldigung, ich... ich habe Sie nicht kommen sehen."
detectedLang"de"
heavyLang"de"
scores
de0.8325145154086646
nl0.6019108280254777
da0.39903846153846156
no0.3862520458265139
pl0.37707641196013286
sv0.37080536912751677
fi0.3409490333919156
sk0.24849699398797598
eu0.23469387755102045
ms0.2299794661190965
et0.22839506172839508
cs0.21052631578947367
hu0.1812227074235808
reliabletrue
passestrue
3
name"Hunter"
dialogue"I'll take that as a yes. There've been some disappearances around town. Three people in the last two weeks. You were near the orchard last night, weren't you?"
detectedLang"en"
heavyLang"en"
scores
en0.8098098098098098
tl0.6368501529051989
nl0.48565240931239845
fr0.40883634100808963
yo0.3342676944639103
de0.32767162066525124
pt0.31752873563218387
ms0.3004418262150221
it0.2742551566080978
sl0.2531446540880503
no0.24841772151898736
da0.24603174603174602
ca0.23201293451899754
ro0.22826969943135664
pl0.21810699588477367
sv0.2070116861435726
hu0.20100925147182505
sq0.20100925147182505
es0.18872758326216907
cs0.1810344827586207
az0.1394927536231884
lv0.1316270566727605
et0.12844036697247707
sk0.12037037037037036
hr0.10546139359698682
lt0.07945736434108527
tr0.07497565725413825
is0.07317073170731707
eu0.06862745098039216
vi0.06862745098039216
fi0.06219151036525173
reliabletrue
passestrue
4
name"Melanie"
dialogue"Der Obstgarten... ja. Ich war dort, um Fotos zu machen. Aber dann... dann habe ich etwas gesehen. Etwas Schreckliches."
detectedLang"de"
heavyLang"de"
scores
de0.8278236914600552
nl0.46167097329888035
da0.42870201096892135
ca0.3842364532019704
en0.37311935807422264
pt0.37311935807422264
es0.3693239152371342
sk0.3602865916069601
sv0.3448637316561845
fi0.34210526315789475
no0.30632630410654826
fr0.296962879640045
pl0.2889647326507395
lv0.28489702517162474
sl0.2774566473988439
et0.2577197149643705
eu0.24150485436893204
is0.1997439180537772
tl0.19458762886597938
lt0.18619791666666666
tr0.1830065359477124
sq0.18086500655307994
yo0.10714285714285714
cs0.09682080924855492
hr0.09682080924855492
it0.09156976744186046
az0.08625730994152046
ro0.08625730994152046
reliabletrue
passestrue
5
name"Hunter"
dialogue"I'm... not following. You wanna run that by me in English?"
detectedLang"en"
heavyLang"en"
scores
en0.8099341104916371
tl0.616956077630235
nl0.5341614906832298
it0.5013297872340425
yo0.43524096385542166
pl0.4221879815100154
sv0.410377358490566
no0.3951612903225807
sl0.39222042139384117
ms0.3811881188118812
de0.3686868686868687
ro0.36332767402376914
cs0.3578767123287671
fr0.33745583038869253
et0.32795698924731176
da0.2964352720450282
fi0.2951127819548872
sq0.2829827915869981
sk0.2661448140900196
is0.2454728370221328
es0.21383647798742136
pt0.19006479481641467
az0.1830065359477124
tr0.17218543046357618
hr0.1610738255033557
reliabletrue
passestrue
6
name"Melanie"
dialogue"Ich verstehe Sie ein bisschen, aber ich kann nicht antworten. Mein Englisch ist... nicht gut. Gar nicht gut."
detectedLang"de"
heavyLang"de"
scores
de0.8417721518987342
nl0.5724907063197026
no0.4439071566731141
sv0.4126659856996936
da0.2962056303549572
is0.28836633663366334
pl0.2830423940149626
tr0.2219215155615697
en0.20798898071625344
es0.18785310734463279
ro0.18555240793201136
ca0.18323863636363635
sk0.17739628040057226
hi0.15565345080763582
cs0.14814814814814814
eu0.1274658573596358
fi0.1274658573596358
lt0.11809815950920245
hr0.11128284389489954
hu0.11128284389489954
it0.11128284389489954
ms0.11128284389489954
fr0.0987460815047022
pt0.0987460815047022
az0.09305993690851734
sq0.09305993690851734
reliabletrue
passestrue
7
name"Hunter"
dialogue"You don't speak English. Of course you don't."
detectedLang"en"
heavyLang"en"
scores
en0.8245614035087719
tl0.647887323943662
fr0.44320712694877507
no0.4131455399061033
ro0.3872549019607844
de0.38271604938271603
nl0.33510638297872336
yo0.3112947658402204
sq0.2795389048991354
is0.2625368731563422
cs0.2378048780487805
da0.22360248447204967
hr0.22360248447204967
ms0.22360248447204967
sv0.22360248447204967
reliabletrue
passestrue
8
name"Melanie"
dialogue"Aber sehen Sie! Hier, auf dem Foto! Da war jemand zwischen den Bäumen. Eine Gestalt. Ich glaube, es hängt mit den vermissten Menschen zusammen!"
detectedLang"de"
heavyLang"de"
scores
de0.8225152129817445
da0.5708680725846003
nl0.5426032409827496
sv0.5363010068892422
no0.5106263982102908
es0.3686868686868687
pt0.3654822335025381
eu0.35424354243542433
fr0.33103975535168195
fi0.3121069182389937
ca0.29549114331723025
pl0.2874592833876221
it0.27924217462932455
en0.251497005988024
tr0.24111014744145706
ro0.23979148566463945
hu0.23580786026200873
lv0.23513986013986016
yo0.22153024911032027
az0.19871794871794873
tl0.19724770642201836
sl0.18604651162790697
sk0.18528864059590316
hr0.1682509505703422
ms0.16745956232159848
cs0.14883268482490272
et0.12761714855433698
lt0.09420289855072464
is0.08376963350785341
vi0.06716417910447761
reliabletrue
passestrue
9
name"Hunter"
dialogue"Whoa, slow down. Is that—is that a photo? You got something on there?"
detectedLang"en"
heavyLang"en"
scores
en0.8193315266485999
tl0.5580110497237569
fr0.5098039215686274
cs0.48253557567917205
yo0.43977591036414565
hu0.43661971830985913
de0.3798449612403101
ca0.3700787401574803
nl0.3640699523052464
pt0.35275080906148865
et0.35170178282009723
fi0.3474714518760196
es0.3442622950819672
sk0.33884297520661155
hr0.3333333333333333
pl0.32088285229202035
is0.2945326278659612
hi0.28698752228163993
sq0.2727272727272727
ms0.26062846580406657
ro0.25788497217068646
it0.23809523809523808
sl0.1836734693877551
lt0.17012448132780084
tr0.16142557651991615
da0.15254237288135594
az0.14893617021276595
eu0.14893617021276595
lv0.14893617021276595
no0.14893617021276595
vi0.14893617021276595
sv0.13606911447084233
reliabletrue
passestrue
10
name"Melanie"
dialogue"Ja, ja! Genau das! Sehen Sie die Person? Sie war ganz still, und dann verschwand sie einfach. Ich hatte solche Angst."
detectedLang"de"
heavyLang"de"
scores
de0.8294762484774665
nl0.44356120826709056
en0.4341147938561034
sv0.4308943089430894
da0.41077441077441074
no0.409282700421941
is0.3996569468267582
it0.37888198757763975
pt0.3439550140581068
pl0.3433395872420263
sq0.33774834437086093
sk0.27611168562564636
ca0.2693110647181628
lv0.26854754440961337
fi0.25611052072263546
fr0.24812030075187969
lt0.23580786026200873
tl0.23580786026200873
et0.23329682365826945
yo0.18887601390498263
tr0.18128654970760233
es0.1774383078730905
ro0.16963226571767495
hu0.16167664670658682
hr0.15254237288135594
az0.14425427872860636
eu0.1411042944785276
ms0.1116751269035533
sl0.10256410256410256
cs0.077733860342556
reliabletrue
passestrue
11
name"Hunter"
dialogue"I'm gonna need a translator. Don't go anywhere, alright? You—stay. Here."
detectedLang"en"
heavyLang"en"
scores
en0.7801943544655252
tl0.5401742497579864
et0.4820065430752454
sq0.4552752293577982
de0.4263285024154589
pl0.4242424242424243
ro0.3870967741935484
it0.3725231175693527
pt0.3716931216931217
fr0.3632707774798928
da0.36241610738255037
yo0.36241610738255037
cs0.36155913978494625
no0.3606998654104979
hr0.3319268635724332
ca0.30758017492711365
sl0.3065693430656934
es0.3055555555555556
nl0.29629629629629634
sk0.28892215568862273
ms0.27811550151975684
sv0.27811550151975684
fi0.2725880551301685
vi0.24960505529225907
hu0.24722662440570525
lt0.23878205128205127
tr0.22764227642276424
eu0.2238562091503268
lv0.2238562091503268
az0.21357615894039736
is0.13636363636363635
reliabletrue
passestrue
12
name"Melanie"
dialogue"Sie wollen, dass ich bleibe? Ich... ich glaube, das verstehe ich."
detectedLang"de"
heavyLang"de"
scores
de0.8405299313052012
pt0.4133574007220217
pl0.411231884057971
nl0.3925233644859813
hu0.3380855397148676
sv0.336734693877551
no0.3298969072164949
en0.2919389978213508
sq0.2857142857142857
sk0.27616926503340755
da0.20924574209245742
fi0.19753086419753088
lt0.19154228855721395
it0.181360201511335
is0.1709183673469388
es0.16237113402061853
fr0.16237113402061853
az0.15364583333333331
ca0.15364583333333331
ro0.15364583333333331
reliabletrue
passestrue
13
name"Hunter"
dialogue"Good. Stay put."
detectedLang"en"
heavyLang"en"
scores
en0.8267898383371826
hr0.625
tl0.5714285714285714
reliabletrue
passestrue
14
name"Hunter"
dialogue"Hunter. ...What? When? ...No, I'm on my way. Don't touch anything until I get there."
detectedLang"en"
heavyLang"en"
scores
en0.8260594560404806
ca0.4796594134342479
tl0.46393762183235865
no0.4186046511627907
pl0.4066882416396979
sq0.4028230184581976
hr0.3735763097949886
sk0.3707093821510297
fr0.3475682087781732
pt0.3349455864570738
cs0.32598039215686275
de0.32598039215686275
it0.3193069306930693
da0.28664072632944226
et0.28292046936114734
tr0.28292046936114734
es0.2791612057667104
sv0.2744063324538259
lv0.260752688172043
is0.2286115007012623
yo0.22752808988764048
fi0.21428571428571427
ro0.21316165951359084
ms0.19941775836972345
hi0.13249211356466878
be0.11290322580645161
hu0.1085899513776337
az0.10277324632952692
lt0.10277324632952692
nl0.10277324632952692
uk0.10277324632952692
vi0.10277324632952692
sl0.09688013136288999
reliabletrue
passestrue
15
name"Melanie"
dialogue"Ist etwas passiert? Sie sehen so... besorgt aus."
detectedLang"de"
heavyLang"de"
scores
de0.8410757946210269
no0.4500846023688663
it0.37977099236641226
en0.375
fr0.36399217221135033
nl0.3460764587525151
sl0.3172268907563025
yo0.2793791574279379
eu0.26136363636363635
pl0.2562929061784897
ca0.2545871559633027
hi0.2459396751740139
sk0.2459396751740139
pt0.24242424242424243
vi0.23349056603773585
tr0.2243436754176611
fi0.21307506053268765
sq0.21307506053268765
tl0.21307506053268765
da0.20147420147420148
sv0.1935483870967742
et0.16666666666666666
is0.16666666666666666
ms0.16666666666666666
reliabletrue
passestrue
16
name"Hunter"
dialogue"That camera. Those photos. Don't delete anything. I'll be back. You understand? Back."
detectedLang"en"
heavyLang"en"
scores
en0.8012116622491481
tl0.5295698924731184
no0.4648318042813456
nl0.42748091603053434
ro0.4160177975528365
fr0.4134078212290503
da0.4120940649496081
sv0.4067796610169492
de0.3902439024390244
sq0.3371212121212121
es0.31906614785992216
ca0.3137254901960784
it0.3
hu0.2768595041322314
lt0.2677824267782427
cs0.23580786026200873
pt0.2335766423357664
ms0.2222222222222222
yo0.1732283464566929
sk0.1449511400651466
pl0.12935323383084577
hi0.12790697674418602
et0.125
sl0.125
tr0.125
is0.12353923205342236
lv0.1191275167785235
reliabletrue
passestrue
17
name"Melanie"
dialogue"Die Kamera... ja. Ich werde nichts löschen. Versprochen."
detectedLang"de"
heavyLang"de"
scores
de0.8281393217231897
nl0.6938775510204083
sv0.6394230769230769
da0.4993324432576769
no0.42660550458715596
sk0.4248466257668711
ca0.4186046511627907
es0.3832236842105263
it0.3644067796610169
ro0.35008665511265163
pl0.34210526315789475
tr0.3267504488330341
cs0.3206521739130435
yo0.3029739776951673
et0.29111531190926276
fi0.28977272727272724
sl0.28435114503816794
pt0.27606177606177607
ms0.2732558139534884
sq0.2632612966601179
lv0.23469387755102045
hr0.17035398230088497
lt0.17035398230088497
hu0.1610738255033557
tl0.1610738255033557
is0.1515837104072398
en0.14383561643835618
fr0.14383561643835618
az0.1359447004608295
reliabletrue
passestrue
18
name"Hunter"
dialogue"Stay safe."
detectedLang"en"
heavyLang"en"
scores
en0.8076923076923077
reliablefalse
passestrue
19
name"Melanie"
dialogue"Seien Sie vorsichtig, Detective..."
detectedLang"de"
heavyLang"de"
scores
de0.7950819672131147
no0.576271186440678
en0.5746691871455577
nl0.5463709677419355
ca0.533195020746888
ro0.5283018867924528
tl0.5033112582781457
fr0.4617224880382775
es0.44168734491315137
it0.43467336683417085
pt0.43037974683544306
pl0.33234421364985167
sq0.29245283018867924
da0.27184466019417475
cs0.24242424242424243
hr0.22945205479452058
sl0.22945205479452058
sv0.22945205479452058
reliabletrue
passestrue