NC Bench
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Run: 2026-02-20-01KHYAJHPQPN4FBQ20DZWWJ7R5
Run Details
Model:
ByteDance Seed 1.6 Flash
Test:
Language Writing
Scenario:
Character dialogue (Italian) in a story
Duration:
10.6s
Cost:
$0.000425
Provider:
Seed
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
Messages
Meta
AI
Isabella: *[set down her camera, fingers brushing a crumpled photo of the town square in her viewfinder; voice tight, breath quick]* "È stato tutto... troppo strano. Tre persone... scomparse." *[Eyes dart to the newspaper headline on a nearby table: "THIRD DISAPPEARANCE IN ALBORN."]* Hunter: *[leaning forward, ball cap tilted, notching his belt; tone cautious but curious]* "Pardon? You... need something? You here alone?" Isabella: *[raising her camera slowly, as if showing him the photo; Italian sharp with distress]* "Io... ho visto. La sera scorsa. Un ragazzo... cercava un caffè. Dopo... niente." *[Fingers tremble; she sets the camera face-down, suddenly self-conscious.]* Hunter: *[frowning, crossing his arms; no clue what she's saying, but her fear is clear]* "Okay, hey—relax. You want a water? I, uh... I can get you a water. Does English work for you?" *[Wait, does it? She doesn't answer.]* "Uh. You need a doctor? Cops? Because—" Isabella: *[cutting him off, rapid Italian, eyes wide]* "Non è il caso! Non vedo nessuno... niente. Tutta la gente... silenziosa." *[She gesticulates vaguely, as if shooing a ghost.]* Hunter: *[softening, because she's clearly terrified, even if he doesn't understand]* "Hey, look at me—" *[pauses, then, thinking out loud]* "Wait. Disappearances. That's... that's what I'm workin' on. Three folks in a month. You... you heard about 'em? From here?" Isabella: *[nodding, lower lip quivering; Italian breaks, half-whispered]* "Sì. Vedo. Tutti... andiamo via. Senza un motivo." Hunter: *[pulling out a notebook, scribbling; determined]* "You sure? You think there's something... strange? Like, a person? A car? Anything?" *[He slides the notebook over, pointing to a sketch of a paneled sedan.]* "Seen this? Or somethin' like it?" Isabella: *[staring at the sketch, then back at Hunter; voice small]* "No... un bambino. Con un cucciolo di cane. Il cane... l'hanno visto. Dopo... niente. Niente." *[Hunter's radio crackles. He checks it, jaw tightening.]* Hunter: "It's dispatch. Got a report from the edge of town—possible sighting. Gotta go." *[He pauses, then pulls a crumpled business card from his pocket, scribbling something on the back.]* "Here. My name's Hunter. If you remember *anything*—even a face, a laugh—call me. I'll... I'll find someone who speaks Italian. Promise." Isabella: *[taking the card, fingers brushing his; Italian softening, almost grateful]* "Grazie. Ti ringrazio." Hunter: *[giving a tight nod, already backing away; radio still hissing]* "Don't move. I'll be back—" *[cuts off, answering a call, then glances over his shoulder]* "Wait! *(She meets his eye.)* You stay here. I'll send a car. Okay?" *[He hurries out, leaving Isabella staring at his back, the business card tight in her hand.]* --- The camera lingers on her viewfinder: a long lens trained on the edge of town, where the horizon bleeds into the woods. The photo, blurred, shows a figure in a hood—turning, just before the shutter clicks.
created_at
"2026-02-20T20:06:34.466Z"
2/20/2026, 8:06:34 PM
model
"bytedance-seed/seed-1.6-flash-20250625"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
573
moderation_latency
(null)
generation_time
10425
tokens_prompt
321
tokens_completion
1317
native_tokens_prompt
371
native_tokens_completion
1325
native_tokens_completion_images
(null)
native_tokens_reasoning
486
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
usage
0.000425325
router
(null)
provider_responses
0
endpoint_id
"e01a1227-001b-44d4-a376-90850668fa84"
id
"0217716179947134288fe53d7c9130f34413480585e68369131f2"
is_byok
false
latency
395
model_permaslug
"bytedance-seed/seed-1.6-flash-20250625"
provider_name
"Seed"
status
200
api_type
"completions"
id
"gen-1771617994-zzjhyG27AjRcAM7hrBHE"
upstream_id
"0217716179947134288fe53d7c9130f34413480585e68369131f2"
total_cost
0.000425325
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Seed"
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Parse dialogue
n/a
dialogue
0
name
"Isabella"
dialogue
"È stato tutto... troppo strano. Tre persone... scomparse."
detectedLang
"it"
heavyLang
"it"
scores
it
0.8148148148148148
no
0.5259165613147914
es
0.5148771021992239
sq
0.5
sv
0.4806094182825485
da
0.46504992867332384
lt
0.4460856720827179
de
0.44362017804154297
hr
0.4427934621099554
tl
0.4195046439628483
et
0.40476190476190477
en
0.3902439024390244
sl
0.38825448613376834
ro
0.3862520458265139
nl
0.3718592964824121
fr
0.36332767402376914
ms
0.358974358974359
lv
0.3567753001715266
sk
0.35456110154905335
cs
0.35344827586206895
yo
0.34895833333333337
pl
0.34782608695652173
tr
0.33035714285714285
az
0.32553956834532377
ca
0.3093922651933701
pt
0.27884615384615385
is
0.25742574257425743
fi
0.17218543046357618
hu
0.14383561643835618
reliable
true
passes
true
1
name
"Hunter"
dialogue
"Pardon? You... need something? You here alone?"
detectedLang
"en"
heavyLang
"en"
scores
en
0.7921862011637573
tl
0.52561669829222
cs
0.41588785046728977
et
0.3573264781491003
lt
0.34210526315789475
sq
0.2857142857142857
it
0.258160237388724
es
0.2378048780487805
ms
0.2378048780487805
pt
0.2378048780487805
fr
0.23547400611620795
pl
0.23547400611620795
reliable
true
passes
true
2
name
"Isabella"
dialogue
"Io... ho visto. La sera scorsa. Un ragazzo... cercava un caffè. Dopo... niente."
detectedLang
"it"
heavyLang
"it"
scores
it
0.8020237571491421
es
0.6150556030795552
ca
0.6097137901127494
fr
0.5810055865921787
ro
0.5566502463054187
pt
0.5292887029288702
no
0.4983277591973244
tl
0.41709844559585496
sk
0.3617021276595745
lv
0.34687953555878087
da
0.33035714285714285
yo
0.3055555555555556
nl
0.267100977198697
sq
0.265905383360522
tr
0.199288256227758
cs
0.1906474820143885
fi
0.16356877323420074
lt
0.16356877323420074
sl
0.16356877323420074
vi
0.15730337078651685
en
0.15413533834586465
de
0.14772727272727273
eu
0.14772727272727273
is
0.13793103448275862
reliable
true
passes
true
3
name
"Hunter"
dialogue
"Uh. You need a doctor? Cops? Because—"
detectedLang
"en"
heavyLang
"en"
scores
en
0.7871333964049195
ro
0.6456692913385826
es
0.5802238805970149
fr
0.5553359683794467
tl
0.5202558635394456
ca
0.5140388768898488
pt
0.4943820224719101
cs
0.4827586206896552
et
0.4730679156908665
yo
0.4578313253012048
hu
0.4094488188976378
de
0.4063324538258575
nl
0.39999999999999997
no
0.3951612903225807
da
0.3885869565217392
sk
0.36619718309859156
it
0.3571428571428572
hr
0.33234421364985167
pl
0.3181818181818182
sl
0.2857142857142857
lt
0.267100977198697
tr
0.2549668874172185
is
0.25
sq
0.24242424242424243
az
0.23728813559322032
eu
0.23728813559322032
lv
0.23728813559322032
vi
0.23728813559322032
fi
0.21875
ms
0.21875
sv
0.21875
reliable
true
passes
true
4
name
"Isabella"
dialogue
"Non è il caso! Non vedo nessuno... niente. Tutta la gente... silenziosa."
detectedLang
"it"
heavyLang
"it"
scores
it
0.8194130925507901
es
0.6226415094339622
pt
0.5703544575725027
fr
0.5589856670341786
ca
0.5500562429696289
ro
0.46380697050938335
no
0.38461538461538464
yo
0.36507936507936506
fi
0.35275080906148865
sl
0.3127147766323024
tl
0.3079584775086505
eu
0.2920353982300885
sq
0.2895204262877442
da
0.27927927927927926
de
0.27927927927927926
az
0.22330097087378642
en
0.18864097363083165
nl
0.18699186991869918
tr
0.17355371900826447
vi
0.17355371900826447
et
0.16317991631799164
hr
0.16142557651991615
sk
0.15254237288135594
reliable
true
passes
true
5
name
"Hunter"
dialogue
"Wait. Disappearances. That's... that's what I'm workin' on. Three folks in a month. You... you heard about 'em? From here?"
detectedLang
"en"
heavyLang
"en"
scores
en
0.8064602242391885
tl
0.5767659077641565
fr
0.45976154992548435
ca
0.3845500848896435
it
0.3717504332755633
sq
0.36010591350397175
fi
0.34210526315789475
pt
0.33668801463860937
yo
0.3198874296435272
ro
0.3192488262910798
nl
0.31344696969696967
sv
0.3108365019011407
es
0.28430404738400794
cs
0.28217821782178215
de
0.27644710578842313
pl
0.27354709418837675
sk
0.26693629929221435
hr
0.26321138211382117
sl
0.2518059855521156
da
0.2479253112033195
ms
0.24557752341311131
no
0.24400417101147026
et
0.23036093418259024
hu
0.17707150964812712
az
0.1751990898748578
lv
0.1657077100115075
tr
0.15795586527293842
hi
0.103831891223733
lt
0.10161090458488227
is
0.09375000000000001
eu
0.0880503144654088
vi
0.0880503144654088
reliable
true
passes
true
6
name
"Isabella"
dialogue
"Sì. Vedo. Tutti... andiamo via. Senza un motivo."
detectedLang
"it"
heavyLang
"it"
scores
it
0.8085513720485004
es
0.5780590717299579
ca
0.5689655172413793
fr
0.48364888123924266
yo
0.47735191637630664
et
0.45848375451263534
pt
0.45848375451263534
ro
0.4186046511627907
fi
0.39759036144578314
sk
0.3630573248407643
lv
0.3576017130620985
sl
0.35344827586206895
nl
0.3333333333333333
sv
0.31662870159453305
tl
0.3135011441647597
da
0.3087557603686636
en
0.3023255813953488
no
0.3023255813953488
lt
0.17355371900826447
cs
0.16434540389972147
de
0.16434540389972147
hr
0.16434540389972147
ms
0.16434540389972147
sq
0.16434540389972147
reliable
true
passes
true
7
name
"Hunter"
dialogue
"Seen this? Or somethin' like it?"
detectedLang
"en"
heavyLang
"en"
scores
en
0.8421468034727704
tl
0.5689655172413793
sq
0.48186528497409326
no
0.38461538461538464
lv
0.3006993006993007
es
0.2805755395683453
fr
0.2805755395683453
pt
0.2805755395683453
yo
0.2753623188405797
reliable
true
passes
true
8
name
"Isabella"
dialogue
"No... un bambino. Con un cucciolo di cane. Il cane... l'hanno visto. Dopo... niente. Niente."
detectedLang
"it"
heavyLang
"it"
scores
it
0.7943327239488117
es
0.6243739565943239
ca
0.554013875123885
tl
0.503858875413451
pt
0.4983277591973244
fr
0.46236559139784944
lv
0.45121951219512196
ro
0.42528735632183906
no
0.3723849372384937
yo
0.34593023255813954
sk
0.3430656934306569
vi
0.336283185840708
lt
0.29467084639498436
tr
0.27652733118971057
ms
0.267100977198697
da
0.25
az
0.20353982300884957
en
0.18772563176895307
hr
0.18330308529945552
nl
0.16974169741697415
fi
0.16356877323420074
sl
0.16356877323420074
sq
0.15887850467289721
de
0.14772727272727273
eu
0.14772727272727273
pl
0.14285714285714285
is
0.13793103448275862
reliable
true
passes
true
9
name
"Hunter"
dialogue
"Here. My name's Hunter. If you remember —even a face, a laugh—call me. I'll... I'll find someone who speaks Italian. Promise."
detectedLang
"en"
heavyLang
"en"
scores
en
0.7850578120367625
nl
0.5041039671682627
tl
0.4839857651245551
sl
0.46016381236038717
fr
0.4561140285071268
ro
0.4561140285071268
ms
0.4478293983244478
sq
0.44656488549618323
pt
0.4444444444444444
de
0.4172025723472669
et
0.4124797406807132
cs
0.4105691056910569
no
0.39532944120100083
da
0.39482470784641066
es
0.3803418803418803
sv
0.3787489288774636
it
0.36736474694589877
yo
0.34270172257479603
is
0.32808155699721964
sk
0.3217960710944809
hu
0.31474480151228734
hr
0.31279620853080564
fi
0.2728184553660983
ca
0.26545086119554206
pl
0.2639593908629441
tr
0.21195652173913043
lt
0.16666666666666666
az
0.15105386416861827
eu
0.0880503144654088
lv
0.0880503144654088
vi
0.0880503144654088
reliable
true
passes
true
10
name
"Isabella"
dialogue
"Grazie. Ti ringrazio."
detectedLang
"it"
heavyLang
"it"
scores
it
0.7989276139410187
yo
0.5145631067961165
ro
0.512987012987013
no
0.5081967213114754
eu
0.43820224719101125
pl
0.38524590163934425
sl
0.38524590163934425
et
0.3775933609958506
lt
0.3644067796610169
sq
0.3644067796610169
da
0.358974358974359
ms
0.358974358974359
sv
0.358974358974359
cs
0.34782608695652173
sk
0.34782608695652173
hr
0.34210526315789475
reliable
true
passes
true
11
name
"Hunter"
dialogue
"Wait! ** You stay here. I'll send a car. Okay?"
detectedLang
"en"
heavyLang
"en"
scores
en
0.7861216730038023
tl
0.53125
fr
0.5182012847965739
cs
0.4827586206896552
sq
0.43324937027707805
hu
0.4094488188976378
pt
0.3835616438356164
ro
0.3818681318681319
ca
0.3767313019390581
es
0.3697478991596639
sk
0.36619718309859156
it
0.3571428571428572
yo
0.34593023255813954
hr
0.33234421364985167
pl
0.3181818181818182
sl
0.2857142857142857
lt
0.267100977198697
tr
0.2549668874172185
is
0.25
da
0.24242424242424243
az
0.23728813559322032
eu
0.23728813559322032
lv
0.23728813559322032
nl
0.23728813559322032
no
0.23728813559322032
vi
0.23728813559322032
de
0.22945205479452058
et
0.21875
fi
0.21875
ms
0.21875
sv
0.21875
reliable
true
passes
true