NC Bench
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Run: 2026-02-20-01KHY8D3AXXMY8S59HN3AKA6JY
Run Details
Model:
ByteDance Seed 1.6 Flash
Test:
Language Writing
Scenario:
Character dialogue (Italian) in a story
Duration:
13.8s
Cost:
$0.000586
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
**Voice Sheet:** Isabella: *She looks up from her camera, her expression tight with distress. She speaks in rapid, trembling Italian, eyes darting as if afraid of being heard.* "Ho sentito... di quell'evento. Quelle scomparse? Una mia amica... è sparita. Siete state a cercarla? Perché non la trovate?" *Her voice cracks; she clutches the camera, knuckles white, and turns a photo on the screen toward him—of a smiling woman with dark hair, probably her friend.* Hunter: *He leans in, frowning, hoping the urgency in her face bridges the language gap. He speaks slowly, carefully, in accented English.* "Wait—'disappearances'? I’m Hunter. I’m the detective looking into that. What friend? Tell me her name. When’d she go missing?" *He gestures to the photo, brow furrowed. When she doesn’t respond, he tries again, softer:* "You don’t understand me? I’m sorry. I—" Isabella: *She blinks rapidly, hand flying to her mouth. She repeats herself in Italian, more frantic now, tears spilling.* "Non capisco niente dell'inglese! Mi fa male... troppo. Dov'è lei? Niente neanche un segno? Madonna, come posso dirti tutto?" *She presses the camera into his hands, showing a photo of the town square—where her friend was last seen, after the apple festival.* Hunter: *He studies the photo, then the woman’s face. He sets it down, voice low, firm with purpose.* "This is Lila, right? She was last seen walking home from the square, three days ago. A man followed her—big, dark hair, leather jacket? You saw him?" *He jots notes on a pad, heart racing—Lila’s description fits the witness reports. When she nods, he looks up, intense:* "You’re sure? Describe him again. What’d he say?" Isabella: *She chokes out a sob, pointing at the photo.* "Sì... l'ho visto. Dietro a lei. All' albergo. Aveva un tasco nero. Mi ha guardato come..." *She trails off, shivering. Her Italian slows, almost whispered now:* "Mi ha paura." Hunter: *His phone buzzes—his partner, shouting about a fourth missing person. He silences it, jaw tight. He meets her eyes, softening briefly.* "I need you to write down *everything*—where you saw him, what he wore, what he did. Can you do that? I’ll get someone to translate. We’ll find her, I promise." *He checks the time, swearing under his breath. He hands her a pen, pausing at the door:* "Stay here. I’ll send someone. And—" *He hesitates, then adds, quieter:* "Thank you for talking to me." Isabella: *She takes the pen, her hands steadying as she focuses on the page. She writes quickly, in neat Italian, then slides the paper toward him. Her eyes are wet but determined.* "Grazie. Per favore... non lasciare che lei ..." *She trails off, but her meaning is clear. Hunter: *He reads the words roughly (not enough to understand fully, but the urgency registers). He tucks the paper into his pocket, nods, and strides out, boots thudding. Over his shoulder:* "I won’t. I swear." The dialogue reflects Isabella’s distress and language barrier, Hunter’s no-nonsense detective manner, and their strained connection—ultimately setting up the mystery while grounding the interaction in emotion.
created_at
"2026-02-20T19:28:38.772Z"
2/20/2026, 7:28:38 PM
model
"bytedance-seed/seed-1.6-flash-20250625"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
512
moderation_latency
(null)
generation_time
13558
tokens_prompt
321
tokens_completion
1956
native_tokens_prompt
371
native_tokens_completion
1862
native_tokens_completion_images
(null)
native_tokens_reasoning
1065
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
0.000586425
router
(null)
provider_responses
0
endpoint_id
"e01a1227-001b-44d4-a376-90850668fa84"
id
"0217716157189430eb6750cc7dc4c5e11333efa00d940ee8fcf83"
is_byok
false
latency
437
model_permaslug
"bytedance-seed/seed-1.6-flash-20250625"
provider_name
"Seed"
status
200
api_type
"completions"
id
"gen-1771615718-6Smi9HKNy61OrjnzUcr1"
upstream_id
"0217716157189430eb6750cc7dc4c5e11333efa00d940ee8fcf83"
total_cost
0.000586425
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
"Ho sentito... di quell'evento. Quelle scomparse? Una mia amica... è sparita. Siete state a cercarla? Perché non la trovate?"
detectedLang
"it"
heavyLang
"it"
scores
it
0.7958426132145509
es
0.6290467625899281
ro
0.6090047393364929
ca
0.5947937131630648
fr
0.5317820658342792
tl
0.5217391304347826
sk
0.5009074410163339
en
0.46428571428571425
pt
0.46254071661237783
no
0.4518272425249169
cs
0.4270833333333333
sq
0.4140625
ms
0.3986880466472303
yo
0.39737034331628923
de
0.39604685212298685
et
0.3314424635332253
da
0.32542927228127555
eu
0.28694900605012963
lt
0.28260869565217395
hr
0.27947598253275113
tr
0.2673179396092362
az
0.2653606411398041
nl
0.2620751341681575
pl
0.24519670631290025
vi
0.23327137546468402
fi
0.22897196261682243
hu
0.22389463781749766
is
0.22169811320754715
sl
0.21353670162059105
lv
0.20825335892514396
sv
0.207492795389049
reliable
true
passes
true
1
name
"Hunter"
dialogue
"You don’t understand me? I’m sorry. I—"
detectedLang
"en"
heavyLang
"en"
scores
en
0.8007968127490039
tl
0.6919917864476387
no
0.6398559423769509
da
0.5945945945945946
sv
0.5377503852080123
it
0.4957983193277311
sq
0.4845360824742268
cs
0.4708994708994709
nl
0.46619217081850534
pl
0.40476190476190477
de
0.39148073022312374
pt
0.38524590163934425
ro
0.35344827586206895
sk
0.3492407809110629
et
0.34497816593886466
hr
0.31662870159453305
ca
0.3150684931506849
is
0.3135011441647597
es
0.2537313432835821
fr
0.23273657289002556
sl
0.22680412371134018
yo
0.2248062015503876
ms
0.21875
fi
0.2
be
0.1891891891891892
tr
0.1891891891891892
hu
0.18256130790190736
az
0.17355371900826447
lt
0.17355371900826447
lv
0.17355371900826447
uk
0.17355371900826447
vi
0.17355371900826447
reliable
true
passes
true
2
name
"Isabella"
dialogue
"Non capisco niente dell'inglese! Mi fa male... troppo. Dov'è lei? Niente neanche un segno? Madonna, come posso dirti tutto?"
detectedLang
"it"
heavyLang
"it"
scores
it
0.8028491477995421
fr
0.4774106540795684
pt
0.45652173913043476
es
0.44642857142857145
ro
0.4097486671744097
ca
0.4015444015444015
yo
0.3902439024390244
en
0.37900641025641024
tl
0.2902930402930403
de
0.23720472440944884
et
0.20349434737923947
fi
0.1993801652892562
lv
0.17728237791932058
eu
0.17553191489361702
no
0.17377398720682302
sq
0.1711229946524064
hr
0.16756176154672395
sk
0.16576964477933262
lt
0.1340782122905028
nl
0.10611303344867358
sl
0.10611303344867358
hu
0.09883720930232558
cs
0.09568261376896149
da
0.0914419695193435
pl
0.0914419695193435
tr
0.08500590318772137
reliable
true
passes
true
3
name
"Hunter"
dialogue
"You’re sure? Describe him again. What’d he say?"
detectedLang
"en"
heavyLang
"en"
scores
en
0.8230297310051912
es
0.5078740157480316
tl
0.4230769230769231
nl
0.34782608695652173
ca
0.33862433862433866
it
0.3169398907103825
pt
0.21548117154811713
ro
0.21548117154811713
yo
0.21383647798742136
fi
0.19527896995708155
fr
0.1648106904231626
reliable
true
passes
true
4
name
"Isabella"
dialogue
"Mi ha paura."
detectedLang
"it"
heavyLang
"it"
scores
it
0.8171846435100548
es
0.6894409937888198
ca
0.6845425867507886
hu
0.6742671009771987
sv
0.54337899543379
no
0.5370370370370371
sl
0.4791666666666667
yo
0.46808510638297873
ro
0.4594594594594595
cs
0.45054945054945056
sk
0.45054945054945056
hr
0.43820224719101125
pl
0.43820224719101125
tr
0.4186046511627907
fr
0.3939393939393939
reliable
true
passes
true
5
name
"Hunter"
dialogue
"Thank you for talking to me."
detectedLang
"en"
heavyLang
"en"
scores
en
0.8322147651006712
no
0.6894409937888198
tl
0.6515679442508711
da
0.5680345572354212
pt
0.550561797752809
cs
0.511002444987775
sl
0.511002444987775
nl
0.48186528497409326
fr
0.44751381215469616
sq
0.42528735632183906
vi
0.42028985507246375
yo
0.4065281899109792
pl
0.40298507462686567
sk
0.39759036144578314
lv
0.37888198757763975
hr
0.3670886075949367
lt
0.34210526315789475
es
0.33774834437086093
et
0.3220338983050847
ms
0.29577464788732394
de
0.2857142857142857
it
0.2857142857142857
fi
0.2727272727272727
is
0.26199261992619927
sv
0.26199261992619927
reliable
true
passes
true
6
name
"Isabella"
dialogue
"Grazie. Per favore... non lasciare che lei ..."
detectedLang
"it"
heavyLang
"it"
scores
it
0.8273697426239799
ro
0.6126760563380281
en
0.47718631178707227
sq
0.462890625
ca
0.4532803180914513
fr
0.39159292035398224
pt
0.3764172335600907
es
0.36194895591647336
nl
0.36194895591647336
sv
0.36194895591647336
no
0.34523809523809523
sl
0.3405275779376499
lt
0.3002544529262086
ms
0.26666666666666666
pl
0.25474254742547425
eu
0.2403314917127072
hr
0.2403314917127072
de
0.22535211267605632
sk
0.21875
da
0.19117647058823528
reliable
true
passes
true
7
name
"Hunter"
dialogue
"I won’t. I swear."
detectedLang
"en"
heavyLang
"en"
scores
en
0.659400544959128
tl
0.6438746438746439
no
0.5370370370370371
da
0.5265151515151516
hr
0.5265151515151516
ca
0.5247148288973384
sv
0.5247148288973384
sq
0.5173745173745175
pl
0.50199203187251
it
0.4791666666666667
cs
0.45652173913043476
ro
0.4186046511627907
yo
0.410377358490566
sk
0.3654822335025381
be
0.358974358974359
tr
0.358974358974359
hu
0.34895833333333337
az
0.33510638297872336
et
0.33510638297872336
is
0.33510638297872336
lt
0.33510638297872336
lv
0.33510638297872336
uk
0.33510638297872336
vi
0.33510638297872336
reliable
true
passes
true