Run: 2026-05-29-01KSSK5FXXS7N5P9S435Q981FJ

Run Details

Model:
Claude Opus 4.8 (Reasoning)
Test:
Language Writing
Scenario:
Character dialogue (Spanish) in a story
Duration:
21.0s
Cost:
$0.028600
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: *(scrolling through photos on her camera, murmuring to herself)* "No puede ser... yo lo vi. Estaba justo ahí." Hunter: "Excuse me, miss. Mind if I sit? I'm Detective Hunter, town's been having some... trouble lately. You been around the past few days?" Maria: *(looking up, startled)* "¿Detective? Ay, gracias a Dios. Mire, mire esto—" *(turning the camera toward him with trembling hands)* "Tomé esta foto anoche cerca del bosque. Había alguien ahí, lo juro." Hunter: "Whoa, slow down. I—I don't follow. You speak any English?" Maria: "¿Inglés? No, no... español. Por favor, es importante. Mire la foto." *(tapping the screen insistently)* Hunter: *(squinting at the camera)* "That's... a tree line. Is there something I'm supposed to be seeing here?" Maria: "¡Ahí! ¿No lo ve? La figura, entre los árboles. Estaba mirándome. Tenía mucho miedo, corrí hasta el hotel." Hunter: "You're shaking. Something scared you, that much I get." *(softening)* "A figure? Out by the woods?" *(pointing at the photo, then making a walking motion with his fingers)* Maria: *(nodding emphatically)* "¡Sí, sí! Una persona. Caminaba muy raro, como... como si arrastrara algo." *(miming a dragging gesture)* Hunter: "Dragging something. Okay. Okay, that lines up with—" *(rubbing his jaw)* "Look, I need someone to translate this. Can you stay put? Stay. Here." *(holding up both palms)* Maria: "No entiendo todo lo que dice, pero... me quedo. Sí. Aquí." *(pointing firmly at the table)* Hunter: "Good. Don't delete that picture. The picture—" *(pointing at the camera, then shaking his head)* "—keep it. Important." Maria: "¿La foto? Sí, la guardo. No la borro, tranquilo." Hunter: *(phone buzzing, he answers)* "Hunter. ...What? Where? ...No, don't touch anything, I'm on my way." *(standing abruptly)* "I gotta go. I'll send someone who speaks Spanish, alright? You—stay—safe." *(pointing at her, then the floor)* Maria: *(half-rising, anxious)* "¿Se va? Pero espere, no le he contado lo de los otros ruidos—" Hunter: "I'm sorry, I really am. I'll be back." *(already backing toward the door)* "Gracias—that's, uh, that's about all I got." Maria: *(sinking back into her chair, clutching the camera)* "De nada... detective." *(quietly, to herself)* "Por favor, vuelva pronto."
created_at"2026-05-29T10:06:06.278Z" 5/29/2026, 10:06:06 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4840
moderation_latency(null)
generation_time20979
tokens_prompt317
tokens_completion665
native_tokens_prompt420
native_tokens_completion1060
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"
usage0.0286
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01DshviA9z7QS4WP3f9s2m2W"
is_byokfalse
latency2961
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-1780049166-Fjwv6BupJ8piGUfJAAZl"
session_id(null)
api_type"completions"
id"gen-1780049166-EAPl7034rbZ0bhy4zEJI"
upstream_id"msg_01DshviA9z7QS4WP3f9s2m2W"
total_cost0.0286
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"No puede ser... yo lo vi. Estaba justo ahí."
detectedLang"es"
heavyLang"es"
scores
es0.8170731707317073
pt0.6838777660695469
ca0.6487119437939111
it0.5607613469985359
no0.5581737849779087
tl0.5283018867924528
da0.5016611295681063
sv0.4991652754590985
en0.4614003590664273
yo0.4350282485875706
vi0.3890020366598778
eu0.38016528925619836
lv0.30394431554524365
hr0.2518703241895262
sk0.23273657289002556
tr0.22680412371134018
fr0.20634920634920634
fi0.20212765957446807
pl0.2
et0.18256130790190736
ms0.18256130790190736
ro0.18256130790190736
de0.16897506925207756
nl0.16897506925207756
reliabletrue
passestrue
1
name"Hunter"
dialogue"Excuse me, miss. Mind if I sit? I'm Detective Hunter, town's been having some... trouble lately. You been around the past few days?"
detectedLang"en"
heavyLang"en"
scores
en0.7975444096133751
tl0.5459871118922086
nl0.47386286490156143
no0.46588559614059266
fr0.4495738636363636
da0.39829192546583847
sq0.3978243978243978
ca0.38831886345698496
sv0.36889250814332253
it0.35737976782752895
pt0.3487394957983193
ro0.3409863945578231
es0.26540284360189575
cs0.2475728155339806
de0.24242424242424243
et0.24094025465230165
ms0.22188755020080322
sl0.21638018200202225
hr0.20998980632008157
pl0.20675537359263052
yo0.2002063983488132
hu0.16666666666666666
fi0.1648706896551724
sk0.16216216216216217
tr0.1426991150442478
hi0.08930669800235018
be0.08284023668639054
az0.07517899761336516
is0.07517899761336516
lt0.07517899761336516
lv0.07517899761336516
uk0.07517899761336516
vi0.07517899761336516
reliabletrue
passestrue
2
name"Maria"
dialogue"Tomé esta foto anoche cerca del bosque. Había alguien ahí, lo juro."
detectedLang"es"
heavyLang"es"
scores
es0.7721518987341772
it0.5738636363636364
pt0.5681381957773513
ca0.5592556317335945
fr0.33920704845814975
ro0.33920704845814975
no0.2890995260663507
sl0.27999999999999997
da0.2753623188405797
et0.26350245499181674
sk0.2537313432835821
de0.25
cs0.24623115577889448
yo0.23339011925042585
sv0.18330308529945552
vi0.16820702402957485
lv0.12280701754385964
nl0.12280701754385964
pl0.12280701754385964
hr0.11591355599214145
reliabletrue
passestrue
3
name"Hunter"
dialogue"Whoa, slow down. I—I don't follow. You speak any English?"
detectedLang"en"
heavyLang"en"
scores
en0.800228310502283
tl0.5518565941101152
ca0.4363929146537842
no0.3934142114384749
da0.3761140819964349
hr0.3761140819964349
sv0.375
it0.3554327808471455
cs0.3433395872420263
ro0.31640625
sq0.2768595041322314
pl0.2647058823529412
yo0.19908466819221968
de0.17061611374407584
ms0.17061611374407584
sk0.17061611374407584
be0.16666666666666666
tr0.16666666666666666
hu0.1606714628297362
az0.15254237288135594
et0.15254237288135594
is0.15254237288135594
lt0.15254237288135594
lv0.15254237288135594
uk0.15254237288135594
vi0.15254237288135594
reliabletrue
passestrue
4
name"Maria"
dialogue"¿Inglés? No, no... español. Por favor, es importante. Mire la foto."
detectedLang"es"
heavyLang"es"
scores
es0.8051631758402338
pt0.7130559540889526
ca0.708029197080292
it0.658703071672355
fr0.6386630532971996
ro0.5930824008138352
sq0.5726495726495726
no0.5381062355658198
tl0.5169082125603864
en0.47780678851174935
lv0.43977591036414565
de0.41690962099125367
hu0.33884297520661155
da0.33554817275747506
tr0.29577464788732394
sk0.29328621908127206
hr0.2857142857142857
sl0.26199261992619927
pl0.25650557620817843
et0.2537313432835821
sv0.24812030075187969
nl0.24242424242424243
eu0.22928709055876687
yo0.18699186991869918
lt0.18533604887983707
vi0.17355371900826447
cs0.12854030501089325
reliabletrue
passestrue
5
name"Hunter"
dialogue"That's... a tree line. Is there something I'm supposed to be seeing here?"
detectedLang"en"
heavyLang"en"
scores
en0.8292932741550018
yo0.4929006085192698
hu0.46062567421790723
tl0.4529540481400437
sq0.4117647058823529
cs0.4054696789536267
fr0.38800489596083226
nl0.3757802746566792
lt0.3734335839598998
sk0.3438320209973753
no0.3342210386151798
da0.3315508021390375
de0.3288590604026846
pl0.32432432432432434
hr0.3131868131868132
pt0.30362116991643456
sl0.29676511954992973
es0.29577464788732394
it0.2826398852223816
lv0.2774566473988439
is0.25037481259370314
ms0.21996879875195008
ro0.21752738654147105
ca0.21383647798742136
sv0.2125984251968504
tr0.1334488734835355
az0.12280701754385964
eu0.12280701754385964
vi0.12280701754385964
et0.11190053285968028
fi0.11190053285968028
reliabletrue
passestrue
6
name"Maria"
dialogue"¡Ahí! ¿No lo ve? La figura, entre los árboles. Estaba mirándome. Tenía mucho miedo, corrí hasta el hotel."
detectedLang"es"
heavyLang"es"
scores
es0.7986489997401922
ca0.6614242027086064
pt0.5730027548209367
it0.5491564863292612
ro0.47207084468664845
fr0.4618055555555556
en0.456140350877193
tr0.36318816762530814
tl0.3557772236076476
sq0.32667245873153783
no0.2850553505535055
ms0.2824074074074074
de0.27093132643461904
lv0.2633079847908745
sk0.24684159378036927
yo0.2280876494023904
hu0.225
hr0.22344689378757512
eu0.21079429735234215
nl0.20594262295081966
da0.20349434737923947
cs0.20267489711934156
vi0.1842105263157895
fi0.1702355460385439
et0.1603466955579632
pl0.15760869565217392
sl0.15021929824561403
sv0.13600891861761427
az0.10196987253765932
is0.08500590318772137
lt0.07074340527577938
reliabletrue
passestrue
7
name"Hunter"
dialogue"A figure? Out by the woods?"
detectedLang"en"
heavyLang"en"
scores
en0.8305084745762712
tl0.6527777777777778
fr0.6309963099630996
da0.6039603960396039
ro0.588477366255144
sk0.5708154506437768
cs0.5680345572354212
no0.5391705069124424
sq0.531615925058548
yo0.5305164319248826
pl0.5271867612293144
ca0.5157384987893463
pt0.511002444987775
es0.5012468827930174
it0.49238578680203043
hu0.43820224719101125
nl0.4350282485875706
ms0.41348973607038125
sv0.41348973607038125
de0.40476190476190477
hr0.358974358974359
sl0.3103448275862069
lt0.2907801418439716
tr0.2779783393501805
is0.2727272727272727
az0.25925925925925924
eu0.25925925925925924
lv0.25925925925925924
vi0.25925925925925924
et0.23954372623574144
fi0.23954372623574144
reliabletrue
passestrue
8
name"Maria"
dialogue"¡Sí, sí! Una persona. Caminaba muy raro, como... como si arrastrara algo."
detectedLang"es"
heavyLang"es"
scores
es0.7734138972809668
ca0.6492048643592142
it0.6411483253588517
pt0.5945945945945946
ro0.5514354066985646
sq0.5271122320302648
tl0.4469026548672566
yo0.4195046439628483
fr0.40191387559808617
sk0.4009584664536741
cs0.39710610932475876
no0.3902439024390244
da0.3811881188118812
sv0.37707641196013286
eu0.34782608695652173
sl0.32432432432432434
az0.3042671614100185
lv0.2857142857142857
en0.2829827915869981
lt0.2774566473988439
tr0.2732558139534884
pl0.25447316103379725
ms0.19006479481641467
de0.16666666666666666
nl0.16666666666666666
hu0.14383561643835618
is0.14383561643835618
et0.1359447004608295
hr0.1359447004608295
reliabletrue
passestrue
9
name"Hunter"
dialogue"Look, I need someone to translate this. Can you stay put? Stay. Here."
detectedLang"en"
heavyLang"en"
scores
en0.8271092669432918
hr0.58006718924972
tl0.5608899297423887
no0.5110821382007823
cs0.49866310160427807
pl0.4688385269121813
da0.44933920704845814
sq0.44933920704845814
ca0.4360902255639098
sk0.41588785046728977
et0.410377358490566
ro0.40664556962025317
it0.4028662420382166
lv0.40191387559808617
lt0.3842364532019704
yo0.37395659432387307
tr0.358974358974359
az0.3466898954703833
sv0.3444055944055944
sl0.32432432432432434
pt0.2964352720450282
es0.29245283018867924
vi0.2870722433460076
fr0.1758241758241758
be0.15730337078651685
de0.1515837104072398
eu0.1515837104072398
hu0.1515837104072398
is0.14383561643835618
nl0.14383561643835618
uk0.14383561643835618
ms0.1359447004608295
reliabletrue
passestrue
10
name"Maria"
dialogue"No entiendo todo lo que dice, pero... me quedo. Sí. Aquí."
detectedLang"es"
heavyLang"es"
scores
es0.8297002724795639
ca0.7143945163747144
pt0.7
it0.5819397993311036
fr0.5167525773195877
tl0.460431654676259
yo0.4318181818181818
en0.43009118541033436
no0.3339253996447602
et0.31444241316270566
fi0.30683918669131244
nl0.30037313432835816
sq0.2829827915869981
lv0.258893280632411
hr0.21218487394957983
sk0.19527896995708155
vi0.19527896995708155
sl0.19006479481641467
tr0.19006479481641467
ms0.1830065359477124
pl0.16666666666666666
reliabletrue
passestrue
11
name"Hunter"
dialogue"—keep it. Important."
detectedLang"en"
heavyLang"en"
scores
en0.8150887573964498
tl0.713302752293578
fr0.7058823529411765
ca0.7044917257683215
ro0.6875
es0.6118012422360247
pt0.6118012422360247
it0.609375
sq0.5503597122302158
da0.5247148288973384
no0.5247148288973384
lv0.4075829383886255
tr0.3902439024390244
yo0.37810945273631835
lt0.36224489795918363
nl0.36224489795918363
sv0.34895833333333337
reliabletrue
passestrue
12
name"Maria"
dialogue"¿La foto? Sí, la guardo. No la borro, tranquilo."
detectedLang"es"
heavyLang"pt"
scores
es0.782264449722882
ca0.7355769230769231
pt0.7266401590457257
it0.6944444444444445
tl0.5833333333333334
no0.5424292845257903
fr0.5393634840871022
yo0.533106960950764
ro0.5258620689655172
en0.49355432780847147
lv0.4869402985074627
sk0.45436507936507936
hr0.44779116465863456
pl0.43064182194616984
eu0.41113490364025695
vi0.38478747203579416
tr0.3544600938967136
sq0.3529411764705882
lt0.33894230769230765
sl0.3309002433090025
da0.32598039215686275
de0.32098765432098764
nl0.314214463840399
cs0.3002544529262086
et0.3002544529262086
az0.17664670658682635
ms0.17664670658682635
sv0.17664670658682635
reliabletrue
passestrue
13
name"Hunter"
dialogue"I gotta go. I'll send someone who speaks Spanish, alright? You—stay—safe."
detectedLang"en"
heavyLang"en"
scores
en0.7738693467336684
tl0.48921679909194093
it0.4102228047182176
no0.39919893190921224
sv0.39597315436241615
da0.3869209809264305
hu0.35344827586206895
yo0.34593023255813954
pl0.34210526315789475
sq0.32228915662650603
et0.3098159509202454
cs0.2890995260663507
ro0.2741935483870968
de0.26229508196721313
hr0.23599320882852293
ca0.23469387755102045
fi0.199288256227758
nl0.15094339622641512
es0.14772727272727273
pt0.14772727272727273
fr0.1412213740458015
sk0.13793103448275862
be0.1346153846153846
tr0.1346153846153846
az0.12280701754385964
is0.12280701754385964
lt0.12280701754385964
lv0.12280701754385964
uk0.12280701754385964
vi0.12280701754385964
reliabletrue
passestrue
14
name"Maria"
dialogue"¿Se va? Pero espere, no le he contado lo de los otros ruidos—"
detectedLang"es"
heavyLang"es"
scores
es0.8181429182712879
pt0.7213114754098361
ca0.709501025290499
it0.6816479400749064
ro0.6278458844133099
fr0.6061167747914735
yo0.6046511627906976
tl0.5994344957587182
en0.5430107526881721
sl0.45997458703939004
no0.4537275064267352
sv0.39544807965860596
nl0.3684992570579495
hr0.3550834597875569
da0.33176100628930816
hu0.31451612903225806
fi0.3122977346278317
tr0.3044189852700491
lt0.2928452579034942
sq0.2916666666666667
eu0.2904841402337229
de0.25438596491228066
ms0.24911660777385158
cs0.24242424242424243
lv0.23561151079136694
sk0.17635658914728683
vi0.17635658914728683
pl0.15
az0.1290983606557377
reliabletrue
passestrue
15
name"Hunter"
dialogue"Gracias—that's, uh, that's about all I got."
detectedLang"en"
heavyLang"en"
scores
en0.7868712702472294
sq0.5503597122302158
es0.5088408644400786
no0.47589098532494756
pl0.4747899159663866
sv0.45652173913043476
it0.4279176201372997
tl0.3857493857493857
et0.3765586034912718
pt0.36061381074168797
da0.3573264781491003
hr0.3573264781491003
ca0.3556701030927836
cs0.29577464788732394
ro0.2647058823529412
yo0.258160237388724
de0.22360248447204967
sk0.22360248447204967
be0.21875
tr0.21875
hu0.21135646687697163
az0.20127795527156547
is0.20127795527156547
lt0.20127795527156547
lv0.20127795527156547
uk0.20127795527156547
vi0.20127795527156547
reliabletrue
passestrue
16
name"Maria"
dialogue"Por favor, vuelva pronto."
detectedLang"es"
heavyLang"es"
scores
es0.7950819672131147
pt0.72397476340694
ca0.630801687763713
sq0.6111111111111112
it0.5986238532110092
fr0.4496855345911949
no0.4496855345911949
hr0.32950191570881227
de0.3027888446215139
sk0.3027888446215139
en0.29149797570850206
ro0.29149797570850206
cs0.2886178861788618
et0.2886178861788618
da0.27083333333333337
nl0.27083333333333337
sl0.27083333333333337
sv0.27083333333333337
reliabletrue
passestrue