NC Bench
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Run: 2026-02-20-01KHYB1RQ2GSVAD6NQJ0DSN0BN
Run Details
Model:
ByteDance Seed 1.6 Flash
Test:
Language Writing
Scenario:
Character dialogue (French) in a story
Duration:
15.6s
Cost:
$0.000902
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="Marie"> Marie is a 30-year old college student on a study abroad program. Born in France, she is fluent in French 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 French, 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: Marie 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 French, and Hunter looks confused. They talk for a while, until Hunter gets a call and has to leave. Return the dialogue between Marie and Hunter as a voice sheet: Marie: "..." Hunter: "..."
Model response
Messages
Meta
AI
**INT. MAPLE STREET CAFE - AFTERNOON** Marie sits at a corner table, her camera propped beside her. She traces the lens with a trembling finger, eyes fixed on a half-printed photo of Alborn’s town square. The door chimes; Hunter pauses in the doorway, scanning the room. His gaze locks onto her—*the* foreign student—and he strides over, hands in the pockets of his worn trench coat. **Hunter:** (soft, cautious) Evening. You must be Marie. From the study abroad program? Marie looks up, startled. Her cheeks flush. She nods once, and a faint, fragile smile tugs at her lips. **Marie:** (weak, accented English) Oui. H-hello. Hunter notices the camera, his brow lifting. **Hunter:** You here often? Seems quiet. **Marie:** (glancing at the photo, then back) Oui. Chaud. (Hot.) She strokes the camera, but her focus drifts—*nervous*, not calm. **Hunter:** (leaning in, serious now) Listen. I need to ask you something. Since you’ve been here… been around town. Seen anything off? Someone acting strange? Marie’s eyes widen. She shakes her head, but her lower lip quivers. Her hand flies to her throat, as if she’s trying to swallow air. **Marie:** (quick, broken English, then slower, troubled, in French) Non. Non… *récent*. Someone. (No. No… *recent*. Someone.) Hunter blinks. He doesn’t recognize the French, but the tone—*alarmed*—stops him mid-question. **Hunter:** Wait—you speak French? Marie nods, vulnerable. She points to her camera, then turns the display so he can see: a blurry shot of the square, but a figure in a hood stands partially visible in the background. **Marie:** (urgent, accented English) Là. (There.) Hier. (Yesterday.) L’homme. (The man.) Parano. (Paranoid.) Il regarde. (He stares.) Hunter leans closer, frowning. **Hunter:** Whoa—calm down. You said “yesterday”? A man? What did he *look* like? Marie fumbles with her bag, pulling out a crumpled notepad. She scribbles furiously in French, then slides it over. The sketch is rough: a scar above a left eye, a dark coat, a cap pulled low over a face. **Marie:** (softly, in English) Il regarde. Toujours. (He stares. Always.) Hunter reads the sketch, then his phone buzzes in his pocket. He checks it, curses under his breath, and silences it. **Hunter:** Chief—*Goddammit*. Another disappearance. I gotta go. He hesitates, then kneels slightly to meet her eyes. **Hunter:** But if you remember *anything*—even a fragment—come to the station. I’ll have a translator. (Pauses, softer) You sure you’re okay? Marie nods, but her hands are still shaking. She clutches the camera to her chest, as if it’s a shield. **Marie:** (whispering, in French) Merci. (Thank you.) Hunter stands, straightens his coat, and nods once. He turns, but pauses at the door. **Hunter:** Stay safe, Marie. Lock your door. The door chimes. He exits. Marie watches him go, then meets her own eyes in the camera’s display. The hooded figure is clearer now—*smiling*. She takes a deep breath, tucks the camera under her arm, and follows. **Marie:** “…” (She mutters in French, too quiet for Hunter to hear. “Il reverra. Jamais.”) **Hunter:** “…I’ll have a translator.” (To himself, before answering his phone.) **Marie:** … (Silent, determined, as she leaves the cafe.) **Hunter:** … (Into phone) “Chief, where? I’m on my way.” *[END SCENE.]* This voice sheet captures the language barrier, Hunter’s urgency, and Marie’s troubled state, while adhering to their character traits.
created_at
"2026-02-20T20:14:53.165Z"
2/20/2026, 8:14:53 PM
model
"bytedance-seed/seed-1.6-flash-20250625"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
826
moderation_latency
(null)
generation_time
15381
tokens_prompt
316
tokens_completion
3032
native_tokens_prompt
367
native_tokens_completion
2914
native_tokens_completion_images
(null)
native_tokens_reasoning
1956
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
0.000901725
router
(null)
provider_responses
0
endpoint_id
"e01a1227-001b-44d4-a376-90850668fa84"
id
"0217716184937023cb8a93f7287826a4278aac7f0d089f9f78d6f"
is_byok
false
latency
689
model_permaslug
"bytedance-seed/seed-1.6-flash-20250625"
provider_name
"Seed"
status
200
api_type
"completions"
id
"gen-1771618493-lYdNG5J8nCEdGXLX05w8"
upstream_id
"0217716184937023cb8a93f7287826a4278aac7f0d089f9f78d6f"
total_cost
0.000901725
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
"Marie"
dialogue
"“…”"
detectedLang
""
heavyLang
""
scores
reliable
false
passes
true
1
name
"Hunter"
dialogue
"“…I’ll have a translator.”"
detectedLang
"en"
heavyLang
"en"
scores
en
0.8173277661795407
da
0.6621621621621622
tl
0.6331236897274634
ro
0.631578947368421
pt
0.6162280701754387
pl
0.580335731414868
hr
0.5742092457420924
sq
0.5558375634517766
ca
0.5466321243523317
sl
0.5454545454545454
es
0.5442708333333333
de
0.5345744680851064
nl
0.5333333333333334
fr
0.5295698924731184
no
0.5257452574525745
sk
0.5244565217391305
cs
0.5218579234972678
it
0.5179063360881543
et
0.5111731843575419
ms
0.5111731843575419
sv
0.5111731843575419
vi
0.47447447447447455
hu
0.4712990936555891
lt
0.45987654320987653
tr
0.4444444444444444
eu
0.43910256410256415
lv
0.43910256410256415
az
0.42434210526315785
yo
0.40476190476190477
is
0.3
fi
0.2647058823529412
reliable
true
passes
true
2
name
"Marie"
dialogue
"…"
detectedLang
""
heavyLang
""
scores
reliable
false
passes
true
3
name
"Hunter"
dialogue
"… “Chief, where? I’m on my way.”"
detectedLang
"en"
heavyLang
"en"
scores
en
0.8232521602513746
tl
0.706266318537859
fr
0.45255474452554745
pl
0.43890274314214467
cs
0.41709844559585496
sk
0.41709844559585496
et
0.4063324538258575
fi
0.39999999999999997
it
0.32432432432432434
ca
0.3055555555555556
hr
0.281150159744409
hi
0.27184466019417475
de
0.25742574257425743
nl
0.25742574257425743
sq
0.25742574257425743
yo
0.25
reliable
true
passes
true