NC Bench
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Run: 2026-02-20-01KHY9GD61Y8AZKCGNAD7Y9F4C
Run Details
Model:
ByteDance Seed 1.6 Flash
Test:
Language Writing
Scenario:
Character dialogue (German) in a story
Duration:
25.0s
Cost:
$0.000882
Provider:
Seed
Evaluation summary
Score
Evaluator
Details Link
80.00%
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
Messages
Meta
AI
**Voice Sheet: "Cafe Conversation"** **Melanie**: (head up, camera in lap, fingers tracing dented corners of the lens. Voice tight, shaky in German.) *"Das... Das passierte vor drei Tagen. Ein Junge. Er trank Thee hier. Blinzelte. Sagte, er fühlt sich verfolgt. Als er ging... Scherzlicht. Vom Fenster. Ich habe es nicht sehen können. Bis ich hinausging. Er war nicht da."* (Swallows, closes the camera slowly.) *"Hier. In Alborn. So ein Ort. So ein Junge."* **Hunter**: (stops, hat tilted back, boots scuffing the linoleum. Blinks, taken aback, shifts his stance.) *"Pardon? Miss, I—do you speak English? Sorry, didn’t catch that."* (Waits, when she says nothing, tries again, slower, pointing to the camera.) *"You take photos here? That your camera? You seen something? About the boy?"* (Frowns, rubs the back of his neck.) *"I’m Hunter—detective. Folks around here’ve been vanishing. Figured a new face might’ve noticed something. Don’t mean to push."* **Melanie**: (glances at the door, then back, eyes wide. Fumbles in her bag, pulls out a crumpled photo—blurry, taken from a window: a boy in a blue hoodie, head down, a shadowy figure loitering behind a maple tree. She shoves it at him.) *"Hier. Dort. Am Gartenweg. Den gånger. Den schatten. Er war da. Ich weiss es. Ich habe es aufgenommen."* (Voice cracks, tears pricking her eyes.) *"Bitte... helft ihm. Bitte."* **Hunter**: (leans in, squints at the photo. His brow furrows—recognition flickers. Mumbles, "Black hoodie... shadow near the maple... that’s the edge of town," then blinks, shaking his head.) *"Wait—you said ‘helft ihm’? What does that mean? English, please?"* (When she freezes, he softens, gestures to the photo.) *"This photo… relevant? To the boy? To the disappearances?"* **Melanie**: (takes a shuddering breath, wipes her eye. English, halting, but clear.) *"He’s scared. Of the shadow. I think… I think the shadow took him. Like the others."* (Nods at the photo.) *"I didn’t know how to say. Only… ‘help him’."* **Hunter**: (stares at her, then the photo, jaw tight. Pulls out his phone, checks the time, curses under his breath.) *"Damn. That’s the third sighting of a black hoodie this week. Thanks, Melanie. That… that’s a lead."* (Pauses, hesitates.) *"You—you sure you’re okay here? I should walk you back to your dorm."* **Melanie**: (waves a hand, already packing her camera. Voice firmer now.) *"I’m fine. My roommate’s with me. But… you have to find him. Please. Before… before it’s too late."* **Hunter**: (tucks the photo into his pocket, hands her a crumpled card with his cell number.) *"I will. Promise. Call me if you remember anything else—even a license plate, a car color, something. Anything."* (His phone rings—urgent, low. He answers, barks, "Send unit to 4th and Elm—yes, sir," then hangs up, scowling.) *"I gotta go. Shit."* (Pauses at the door, looks back.) *"Stay safe. And… I’ll get this photo developed. See what I can do."* **Melanie**: (smiles faintly, bitter.) *"Danke. Bitte. Bitte seht ihn."* **Hunter**: (blinks, confused again, but nods.) *"I will. Melanie—"* (Turns, strides out, door jangling. Calls over his shoulder.) *"Lock your door! And if you hear anything—call me!"* *Melanie watches him go, then opens her camera, scrolls to a photo taken an hour earlier: the shadowy figure, arm raised, masked.* --- The voice sheet captures their language barrier, Melanie's distress, and Hunter's determination—all against the cozy yet tense backdrop of Alborn, MN.
created_at
"2026-02-20T19:47:55.725Z"
2/20/2026, 7:47:55 PM
model
"bytedance-seed/seed-1.6-flash-20250625"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
487
moderation_latency
(null)
generation_time
24794
tokens_prompt
319
tokens_completion
2786
native_tokens_prompt
371
native_tokens_completion
2846
native_tokens_completion_images
(null)
native_tokens_reasoning
1833
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
0.000881625
router
(null)
provider_responses
0
endpoint_id
"e01a1227-001b-44d4-a376-90850668fa84"
id
"02177161687587428c256f90ee836450e608b7d1b1192f3dadefa"
is_byok
false
latency
299
model_permaslug
"bytedance-seed/seed-1.6-flash-20250625"
provider_name
"Seed"
status
200
api_type
"completions"
id
"gen-1771616875-kymIvXD9HnjbI4E8vYmJ"
upstream_id
"02177161687587428c256f90ee836450e608b7d1b1192f3dadefa"
total_cost
0.000881625
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Seed"
Evaluation details
Result
Evaluator
Details
Meta Data
80.00%
Parse dialogue
n/a
dialogue
0
name
"Melanie"
dialogue
"Hier. In Alborn. So ein Ort. So ein Junge."
detectedLang
"de"
heavyLang
"en"
scores
de
0.7926267281105991
no
0.576271186440678
sl
0.5754716981132075
en
0.5436105476673428
nl
0.5351239669421488
ro
0.5044052863436124
it
0.49888641425389757
yo
0.4874715261958998
tl
0.44581280788177335
lt
0.33234421364985167
sv
0.32228915662650603
sk
0.3202416918429003
vi
0.3055555555555556
fr
0.281150159744409
is
0.281150159744409
az
0.27184466019417475
pl
0.27184466019417475
ms
0.25
reliable
true
passes
true
1
name
"Hunter"
dialogue
"I’m Hunter—detective. Folks around here’ve been vanishing. Figured a new face might’ve noticed something. Don’t mean to push."
detectedLang
"en"
heavyLang
"en"
scores
en
0.7929858743302484
tl
0.5614035087719298
ro
0.448051948051948
fr
0.44516971279373363
pt
0.44115713346482577
da
0.4344644045242848
es
0.4221617946974847
it
0.40476190476190477
no
0.40308988764044945
sk
0.36042136945071485
cs
0.3555724033358605
ca
0.34715821812596004
sq
0.3395493395493396
sl
0.3178170144462279
de
0.30156121610517667
sv
0.2981007431874484
hr
0.29401993355481726
nl
0.2910758965804838
yo
0.2728828058169376
lv
0.2678725236864771
ms
0.23354373309287646
pl
0.22018348623853207
lt
0.17953667953667954
et
0.16090819348469892
hu
0.1550695825049702
tr
0.13793103448275862
is
0.08108108108108109
az
0.07608695652173912
eu
0.07608695652173912
vi
0.07608695652173912
fi
0.06900328587075576
reliable
true
passes
true
2
name
"Melanie"
dialogue
"Bitte... helft ihm. Bitte."
detectedLang
"de"
heavyLang
"de"
scores
de
0.7877758913412564
nl
0.7146118721461188
et
0.4747899159663866
da
0.375
it
0.375
no
0.375
reliable
true
passes
true
3
name
"Hunter"
dialogue
"This photo… relevant? To the boy? To the disappearances?"
detectedLang
"en"
heavyLang
"en"
scores
en
0.8031496062992126
fr
0.6891651865008881
tl
0.6080627099664053
no
0.4444444444444444
ca
0.42622950819672134
da
0.42528735632183906
yo
0.41077441077441074
pt
0.40374787052810895
cs
0.3848857644991213
sl
0.3848857644991213
lv
0.358974358974359
nl
0.35064935064935066
ms
0.3346007604562738
it
0.3320610687022901
es
0.32038834951456313
pl
0.27835051546391754
sk
0.2738589211618257
hr
0.24892703862660948
lt
0.2290748898678414
sq
0.1822429906542056
sv
0.1822429906542056
hi
0.18032786885245902
de
0.1784037558685446
ro
0.1784037558685446
reliable
true
passes
true
4
name
"Melanie"
dialogue
"I didn’t know how to say. Only… ‘help him’."
detectedLang
"en"
heavyLang
"en"
scores
en
0.8413156376226197
tl
0.6008708272859216
pl
0.4869402985074627
hr
0.4811320754716981
no
0.48015122873345933
da
0.46911196911196906
cs
0.461839530332681
yo
0.44889779559118237
sk
0.4258872651356994
lv
0.40217391304347827
tr
0.3820224719101124
lt
0.3778280542986425
ca
0.3341404358353511
sv
0.3341404358353511
sq
0.3276283618581907
sl
0.3055555555555556
it
0.2948717948717949
ro
0.24657534246575344
be
0.20289855072463767
hu
0.19590643274853803
az
0.1863905325443787
et
0.1863905325443787
is
0.1863905325443787
uk
0.1863905325443787
vi
0.1863905325443787
reliable
true
passes
false
5
name
"Hunter"
dialogue
"You—you sure you’re okay here? I should walk you back to your dorm."
detectedLang
"en"
heavyLang
"en"
scores
en
0.8139880952380952
tl
0.6246246246246246
cs
0.455732946298984
pl
0.410377358490566
hr
0.40476190476190477
no
0.4038155802861685
da
0.39320388349514557
sq
0.3842364532019704
yo
0.37395659432387307
sk
0.35233160621761656
lv
0.33035714285714285
lt
0.3081180811808118
ca
0.2690058479532163
sv
0.2690058479532163
sl
0.24395161290322584
it
0.23469387755102045
ro
0.1935483870967742
ms
0.17218543046357618
be
0.15730337078651685
tr
0.15730337078651685
hu
0.1515837104072398
az
0.14383561643835618
et
0.14383561643835618
is
0.14383561643835618
uk
0.14383561643835618
vi
0.14383561643835618
reliable
true
passes
true
6
name
"Melanie"
dialogue
"I’m fine. My roommate’s with me. But… you have to find him. Please. Before… before it’s too late."
detectedLang
"en"
heavyLang
"en"
scores
en
0.8151125401929261
tl
0.6112237998647735
da
0.47199265381083566
no
0.3869936034115139
cs
0.339080459770115
it
0.3329466357308584
pl
0.2830423940149626
sk
0.27490542244640603
sl
0.26658163265306123
nl
0.2414248021108179
fr
0.2374005305039788
ms
0.21981004070556312
sq
0.20470262793914246
yo
0.19241573033707865
lv
0.17503586800573886
hr
0.1678726483357453
lt
0.1531664212076583
es
0.15066469719350073
ro
0.14814814814814814
et
0.1417910447761194
pt
0.13273001508295626
hu
0.11674347158218126
sv
0.11674347158218126
fi
0.11538461538461538
reliable
true
passes
false
7
name
"Hunter"
dialogue
"Stay safe. And… I’ll get this photo developed. See what I can do."
detectedLang
"en"
heavyLang
"en"
scores
en
0.828836085380588
tl
0.5913461538461539
hr
0.44589308996088656
cs
0.43408788282290284
fr
0.3963068181818182
pl
0.3876080691642651
yo
0.38316400580551524
pt
0.3786549707602339
sq
0.371301775147929
et
0.3541033434650456
ca
0.3359375
sk
0.32432432432432434
sl
0.32324840764331214
ro
0.2963576158940397
vi
0.2904841402337229
is
0.2772108843537415
tr
0.256993006993007
no
0.25438596491228066
az
0.247787610619469
da
0.24645390070921988
sv
0.24511545293072823
it
0.21296296296296297
nl
0.19507575757575757
hi
0.1533864541832669
be
0.1414141414141414
hu
0.1361788617886179
lt
0.1290983606557377
lv
0.1290983606557377
uk
0.1290983606557377
reliable
true
passes
true
8
name
"Melanie"
dialogue
"Danke. Bitte. Bitte seht ihn."
detectedLang
"de"
heavyLang
"de"
scores
de
0.7761194029850746
nl
0.5192307692307693
sk
0.5033112582781457
da
0.4983277591973244
no
0.4983277591973244
et
0.4296577946768061
hr
0.38524590163934425
sl
0.38524590163934425
it
0.3333333333333333
sv
0.33035714285714285
reliable
true
passes
true
9
name
"Hunter"
dialogue
"Lock your door! And if you hear anything—call me!"
detectedLang
"en"
heavyLang
"en"
scores
en
0.816961561928005
tl
0.546142208774584
nl
0.4545454545454546
sq
0.45255474452554745
ms
0.4444444444444444
es
0.2537313432835821
sv
0.25
yo
0.24812030075187969
et
0.24050632911392408
fr
0.23273657289002556
no
0.23273657289002556
pt
0.22680412371134018
sl
0.22680412371134018
it
0.21052631578947367
cs
0.20634920634920634
fi
0.2
reliable
true
passes
true