Run: 2026-05-31-01KSYXDR51T89YD19FPFQHPEV5

Run Details

Model:
Claude Opus 4.8 (Reasoning, High)
Test:
Language Writing
Scenario:
Character dialogue (German) in a story
Duration:
18.4s
Cost:
$0.029405
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: *flipping through photos on her camera screen, murmuring softly* "So viele schöne Bilder... aber dieses eine... was ist das nur?" Hunter: "Excuse me, miss. Mind if I sit down? Detective Hunter, Alborn PD. I'd like to ask you a few questions about what happened by the orchard last night." Melanie: *looking up, startled* "Oh—entschuldigung, ich habe Sie nicht kommen sehen. Sind Sie von der Polizei?" Hunter: "...Right. So you were at the festival grounds yesterday evening?" Melanie: *nodding emphatically, gripping her camera* "Ja, ja! Ich war dort, beim Apfelfestival. Ich wollte nur Fotos vom Sonnenuntergang machen, aber dann—" *her voice catches* "—dann habe ich etwas gesehen. Etwas Schreckliches." Hunter: "Okay, slow down. I'm not following any of that. You're not from around here, are you?" Melanie: *speaking faster, hands trembling* "Da war ein Mann, am Rand des Waldes. Und dann war er plötzlich weg! Einfach verschwunden! Ich habe es fotografiert, hier, sehen Sie!" *thrusting the camera toward him* Hunter: *leaning back slightly* "Whoa, easy. I can't understand a word you're saying. German, is it?" Melanie: *pointing urgently at the camera screen* "Bitte, schauen Sie! Das ist wichtig! Dieser Schatten hier—das war kein normaler Mensch!" Hunter: *rubbing his temple* "Look, I appreciate you're trying to tell me something. You seem real shook up about it. But I need someone who can translate." Melanie: *near tears, voice shaking* "Verstehen Sie denn nicht? Es geht um die vermissten Leute! Ich glaube, ich habe gesehen, was mit ihnen passiert ist!" Hunter: "Missing people—did you say something about the missing people? The disappearances?" Melanie: *catching the word, nodding desperately* "Ja! Ja, vermisst! Genau das! Bitte, Sie müssen mir glauben!" Hunter: *his phone rings; he glances at it* "Hang on. Hunter here." *pause, expression hardening* "Another one? Where? ...No, I'm on my way. Don't touch anything." Melanie: *reaching out as he stands* "Warten Sie! Gehen Sie nicht! Das Foto—Sie müssen das Foto sehen!" Hunter: *already moving, holding up a hand* "I gotta go. Stay put, alright? I'll send someone who speaks German. Don't leave town." *pausing, softer* "And... whatever you saw out there—keep that camera safe." Melanie: *clutching the camera to her chest, watching him rush off, whispering* "Bitte... lassen Sie mich nicht allein damit."
created_at"2026-05-31T11:41:34.767Z" 5/31/2026, 11:41:34 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency7281
moderation_latency(null)
generation_time18374
tokens_prompt319
tokens_completion687
native_tokens_prompt416
native_tokens_completion1093
native_tokens_completion_images(null)
native_tokens_reasoning54
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"
usage0.029405
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01Be3Q7eMAttN4RHHzgDT9wS"
is_byokfalse
latency2072
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-1780227694-lQZiRPI82VqfGi9TXwM6"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780227694-rak5XnFilmmXO3p2Bs2U"
upstream_id"msg_01Be3Q7eMAttN4RHHzgDT9wS"
total_cost0.029405
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 eine... was ist das nur?"
detectedLang"de"
heavyLang"de"
scores
de0.8454245671887881
no0.5046235138705416
en0.4806094182825485
nl0.438622754491018
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
lv0.1812227074235808
it0.16666666666666666
ro0.16666666666666666
et0.1648106904231626
ru0.1648106904231626
reliabletrue
passestrue
1
name"Hunter"
dialogue"Excuse me, miss. Mind if I sit down? Detective Hunter, Alborn PD. I'd like to ask you a few questions about what happened by the orchard last night."
detectedLang"en"
heavyLang"en"
scores
en0.7932175351530191
tl0.5833333333333334
fr0.51171875
no0.5102840352595495
it0.47285187137585666
da0.45916711736073557
ca0.3957703927492447
cs0.3935718617343845
ro0.3902439024390244
nl0.38837920489296635
pt0.38837920489296635
sq0.3686868686868687
yo0.3438320209973753
sv0.3403693931398417
es0.32795698924731176
pl0.32614555256064687
sk0.3197278911564626
hr0.302649930264993
sl0.2982456140350877
de0.2795389048991354
et0.2784992784992785
hu0.2372234935163997
ms0.22118380062305293
lv0.20318725099601595
lt0.19935948759007205
tr0.17081260364842457
fi0.12126537785588754
is0.12126537785588754
az0.11738746690203002
vi0.11738746690203002
be0.06542056074766354
eu0.06542056074766354
uk0.059266227657572904
reliabletrue
passestrue
2
name"Melanie"
dialogue"Oh—entschuldigung, ich habe Sie nicht kommen sehen. Sind Sie von der Polizei?"
detectedLang"de"
heavyLang"de"
scores
de0.8358502954694681
nl0.6003197442046363
no0.5121951219512195
da0.49949949949949946
pl0.38650306748466257
sv0.38271604938271603
et0.375
fi0.3573264781491003
sk0.29577464788732394
eu0.29478138222849076
ms0.2795389048991354
cs0.27641099855282203
ro0.2753623188405797
hu0.2401215805471125
sl0.1539763113367174
lv0.15110356536502548
hr0.14965986394557826
en0.1482112436115843
lt0.1482112436115843
it0.14675767918088736
fr0.14089347079037798
sq0.14089347079037798
is0.13494809688581316
az0.13043478260869565
es0.13043478260869565
tl0.13043478260869565
ca0.12587412587412586
tr0.12587412587412586
pt0.12280701754385964
reliabletrue
passestrue
3
name"Hunter"
dialogue"...Right. So you were at the festival grounds yesterday evening?"
detectedLang"en"
heavyLang"en"
scores
en0.8112788632326821
tl0.7337092731829574
no0.6499176276771006
da0.6271929824561404
nl0.5877788554801164
sv0.5298672566371682
fr0.5086705202312138
sl0.4429882044560944
de0.44078947368421056
yo0.4193989071038251
pt0.4064245810055866
it0.39716312056737585
cs0.38405797101449274
es0.3795620437956204
ms0.37683284457478006
sk0.34514637904468415
sq0.3285939968404423
ca0.3264659270998415
ro0.32539682539682535
hr0.3210862619808307
lt0.22867513611615245
et0.22303473491773307
az0.21731123388581952
is0.20560747663551404
vi0.18893129770992365
hu0.1361788617886179
fi0.1290983606557377
lv0.1290983606557377
pl0.1290983606557377
reliabletrue
passestrue
4
name"Melanie"
dialogue"—dann habe ich etwas gesehen. Etwas Schreckliches."
detectedLang"de"
heavyLang"de"
scores
de0.8404872389791184
nl0.3309002433090025
sk0.31077694235588976
eu0.2948717948717949
pl0.2948717948717949
fr0.26666666666666666
en0.260752688172043
fi0.24242424242424243
es0.21652421652421652
tl0.21652421652421652
reliabletrue
passestrue
5
name"Hunter"
dialogue"Okay, slow down. I'm not following any of that. You're not from around here, are you?"
detectedLang"en"
heavyLang"en"
scores
en0.8303571428571429
tl0.6497050147492625
nl0.3004418262150221
ro0.2375601926163724
ca0.21875
yo0.19217687074829934
sq0.1739130434782609
no0.16520210896309317
is0.15780141843971632
de0.14874551971326164
cs0.1410488245931284
it0.1410488245931284
tr0.1410488245931284
reliabletrue
passestrue
6
name"Melanie"
dialogue"Da war ein Mann, am Rand des Waldes. Und dann war er plötzlich weg! Einfach verschwunden! Ich habe es fotografiert, hier, sehen Sie!"
detectedLang"de"
heavyLang"de"
scores
de0.8184419014084507
no0.5325779036827195
nl0.462890625
is0.4202389318341532
da0.4153082919914954
ca0.4051910598413843
es0.39999999999999997
ro0.3697478991596639
sv0.3436754176610978
pl0.3330638641875505
fr0.3130724396336387
tr0.298469387755102
lv0.29426860564585117
en0.28879310344827586
pt0.2737676056338028
it0.27055702917771884
lt0.26273458445040215
hu0.25203989120580234
sq0.24931756141947223
sl0.23963133640552997
hr0.23611111111111113
sk0.23540315106580167
eu0.22462406015037595
az0.21353670162059105
et0.20520231213872833
cs0.1397288842544317
fi0.09638554216867469
hi0.09539473684210525
yo0.08333333333333334
tl0.07094594594594594
vi0.07094594594594594
ms0.0667420814479638
reliabletrue
passestrue
7
name"Hunter"
dialogue"Whoa, easy. I can't understand a word you're saying. German, is it?"
detectedLang"en"
heavyLang"en"
scores
en0.8070325900514581
tl0.5481927710843374
da0.5322245322245323
no0.5322245322245323
nl0.5187165775401069
sv0.5171673819742489
ro0.5076586433260394
yo0.471830985915493
hu0.4558645707376058
sq0.44581280788177335
ca0.44306930693069313
de0.42675159235668786
it0.4186046511627907
cs0.4163424124513619
tr0.41329856584093866
pl0.40711462450592883
is0.40318302387267907
sk0.39271255060728744
hr0.3580599144079886
lv0.3273542600896861
az0.3108728943338438
es0.3098159509202454
lt0.24369747899159663
pt0.23728813559322032
ms0.22813036020583194
vi0.22813036020583194
et0.21875
fr0.20634920634920634
sl0.16666666666666666
be0.1346153846153846
eu0.1346153846153846
fi0.12280701754385964
uk0.12280701754385964
reliabletrue
passestrue
8
name"Melanie"
dialogue"Bitte, schauen Sie! Das ist wichtig! Dieser Schatten hier—das war kein normaler Mensch!"
detectedLang"de"
heavyLang"de"
scores
de0.8359887535145266
nl0.6016691957511381
da0.450261780104712
no0.4479495268138801
sv0.39306358381502887
pt0.373508353221957
tr0.3667068757539204
en0.3354430379746835
es0.31994818652849744
it0.29718875502008035
et0.2467718794835007
pl0.2456896551724138
fi0.2435158501440922
fr0.22337278106508876
tl0.2033383915022762
hi0.16798732171156894
eu0.11317567567567569
lv0.11317567567567569
ro0.11317567567567569
az0.10714285714285714
ca0.10714285714285714
lt0.10714285714285714
sq0.10714285714285714
cs0.10102739726027396
hr0.10102739726027396
ms0.10102739726027396
sk0.10102739726027396
sl0.10102739726027396
reliabletrue
passestrue
9
name"Hunter"
dialogue"Look, I appreciate you're trying to tell me something. You seem real shook up about it. But I need someone who can translate."
detectedLang"en"
heavyLang"en"
scores
en0.8181404864741987
tl0.5383727639930755
no0.4095940959409594
it0.3980436418359669
sq0.3548387096774194
et0.35117599351175993
es0.3474714518760196
ro0.34210526315789475
pt0.3305439330543933
hr0.3294216261525566
ca0.32088285229202035
cs0.31798806479113384
fr0.30915371329879104
sl0.2982456140350877
lv0.29701230228471004
pl0.2926613616268789
da0.2766726943942134
yo0.2727272727272727
tr0.2640294388224471
az0.2530345471521942
sk0.25023430178069356
lt0.2263056092843327
nl0.21951219512195122
ms0.21645445641527913
sv0.19759277833500502
vi0.1587802313354364
fi0.08571428571428572
be0.08045977011494253
de0.07727797001153403
eu0.07727797001153403
hu0.07727797001153403
is0.07300115874855156
uk0.07300115874855156
reliabletrue
passestrue
10
name"Melanie"
dialogue"Verstehen Sie denn nicht? Es geht um die vermissten Leute! Ich glaube, ich habe gesehen, was mit ihnen passiert ist!"
detectedLang"de"
heavyLang"de"
scores
de0.8423227490213137
nl0.5488487865588052
ca0.40427280197206245
pt0.3907563025210084
en0.34684684684684686
da0.33056325023084027
no0.32932469935245146
it0.32745825602968465
hu0.32052483598875353
sv0.3062200956937799
is0.28430404738400794
fi0.28003972194637533
fr0.25944841675178754
eu0.24242424242424243
pl0.23844537815126046
es0.22459893048128343
lv0.22126745435016112
tr0.21281216069489683
yo0.19444444444444445
az0.18994413407821228
lt0.1881298992161254
et0.1559953434225844
sk0.14605418138987042
hi0.12755716004813478
cs0.12121212121212122
tl0.09600997506234414
ms0.08227848101265822
ro0.07525510204081631
sq0.07525510204081631
reliabletrue
passestrue
11
name"Hunter"
dialogue"Missing people—did you say something about the missing people? The disappearances?"
detectedLang"en"
heavyLang"en"
scores
en0.8250388802488335
tl0.5912806539509536
fr0.5071193866374589
nl0.44785276073619634
ms0.44717444717444715
pt0.40318302387267907
ca0.33135215453194655
da0.3253373313343328
no0.2834394904458599
sv0.27884615384615385
es0.2706645056726094
is0.2524916943521595
it0.2524916943521595
yo0.19210053859964096
cs0.14772727272727273
fi0.14772727272727273
sq0.14772727272727273
lv0.1412213740458015
de0.13793103448275862
az0.1262135922330097
et0.1262135922330097
reliabletrue
passestrue
12
name"Melanie"
dialogue"Ja! Ja, vermisst! Genau das! Bitte, Sie müssen mir glauben!"
detectedLang"de"
heavyLang"de"
scores
de0.8269497000461468
nl0.5059288537549407
et0.47257383966244726
sv0.46808510638297873
da0.4665718349928876
pt0.45255474452554745
no0.4113029827315541
az0.3832236842105263
fi0.3718592964824121
tr0.34325744308231176
pl0.33862433862433866
ca0.32915921288014316
it0.2951127819548872
lv0.23469387755102045
hr0.21052631578947367
fr0.19871794871794873
en0.1935483870967742
sk0.1830065359477124
sl0.1758241758241758
tl0.17035398230088497
sq0.16666666666666666
yo0.16666666666666666
reliabletrue
passestrue
13
name"Hunter"
dialogue"Another one? Where? ...No, I'm on my way. Don't touch anything."
detectedLang"en"
heavyLang"en"
scores
en0.8280744336569579
tl0.5502645502645502
pl0.4429882044560944
hr0.39372325249643364
sk0.3722304283604136
es0.3580060422960725
ca0.3550834597875569
fr0.34210526315789475
sq0.2951907131011609
cs0.2747440273037543
et0.2659758203799654
fi0.2608695652173913
pt0.24511545293072823
lv0.23561151079136694
no0.18582375478927202
tr0.17153996101364524
hi0.1650294695481336
it0.15841584158415842
da0.1550695825049702
de0.1550695825049702
ms0.1550695825049702
yo0.15
reliabletrue
passestrue
14
name"Melanie"
dialogue"Warten Sie! Gehen Sie nicht! Das Foto—Sie müssen das Foto sehen!"
detectedLang"de"
heavyLang"de"
scores
de0.8433420365535248
nl0.6376811594202898
no0.48805460750853247
pl0.4809688581314879
da0.469964664310954
pt0.42857142857142855
eu0.39879759519038077
sv0.38650306748466257
fi0.3644067796610169
tr0.35344827586206895
cs0.3464052287581699
ca0.3006993006993007
es0.3006993006993007
az0.2890995260663507
ms0.20634920634920634
sl0.20424403183023873
sk0.2
it0.17355371900826447
lv0.17355371900826447
ro0.17355371900826447
et0.16434540389972147
hr0.16434540389972147
reliabletrue
passestrue
15
name"Hunter"
dialogue"And... whatever you saw out there—keep that camera safe."
detectedLang"en"
heavyLang"en"
scores
en0.8267326732673268
tl0.6036240090600227
de0.41666666666666663
ms0.32950191570881227
sv0.3269230769230769
nl0.31906614785992216
it0.3110236220472441
ro0.3110236220472441
fr0.29718875502008035
ca0.22566371681415928
es0.22048997772828507
yo0.22048997772828507
da0.2081447963800905
no0.2009132420091324
cs0.1822429906542056
sq0.1822429906542056
pt0.17061611374407584
reliabletrue
passestrue
16
name"Melanie"
dialogue"Bitte... lassen Sie mich nicht allein damit."
detectedLang"de"
heavyLang"de"
scores
de0.8423541776142932
nl0.6515679442508711
da0.4800693240901213
no0.47643979057591623
tl0.4614003590664273
sv0.39999999999999997
et0.3963782696177062
fr0.3617021276595745
it0.35344827586206895
pl0.27184466019417475
cs0.25
hr0.20634920634920634
sq0.20634920634920634
en0.1891891891891892
fi0.1891891891891892
reliabletrue
passestrue