Run: 2026-03-12-01KKHZNMBPYS0JVT24KV0JNJ87

Run Details

Model:
Grok 4.20 (Beta, Reasoning)
Test:
Language Writing
Scenario:
Character dialogue (German) in a story
Duration:
21.7s
Cost:
$0.031129
Provider:
xAI

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="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

AI
Hunter: "Excuse me, miss. I'm Detective Hunter. I see you have a camera there. Were you photographing the apple festival? We had a mysterious disappearance and I was hoping you might have seen something." Melanie: "Es war schrecklich! Ich habe den ganzen Tag Landschaften fotografiert, aber dann passierte diese Sache. Der Mann verschwand direkt vor meinen Augen. Ich bin immer noch ganz durcheinander und geschüttelt!" Hunter: "Uh... I have no idea what you just said. Do you speak English at all?" Melanie: "Nein, ich spreche nur Deutsch. Ich bin eine Austauschstudentin und Englisch ist noch sehr neu für mich. Aber ich habe Angst wegen dem, was ich gesehen habe." Hunter: "Maybe I can call someone who speaks German. This is important to the investigation." Melanie: "Die Polizei? Sind Sie von der Polizei? Ich wollte gerade zur Polizei gehen, um zu erzählen, was ich beobachtet habe." Hunter: "I need to find out what happened. Any details could help." Melanie: "Schauen Sie sich meine Kamera an. Die Bilder könnten Hinweise enthalten." Hunter: "Hold on, that's my phone. Hello? Yes, another one missing? I'll be right there."
created_at"2026-03-12T21:36:31.612Z" 3/12/2026, 9:36:31 PM
model"x-ai/grok-4.20-beta-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency20938
moderation_latency(null)
generation_time21529
tokens_prompt319
tokens_completion292
native_tokens_prompt388
native_tokens_completion5174
native_tokens_completion_images0
native_tokens_reasoning4913
native_tokens_cached384
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.0311288
router(null)
provider_responses
0
endpoint_id"33f49f24-a0de-4dcf-872d-ca514e83fbae"
id"ae0f957c-ae7c-d3fd-6c6c-9b6a26be061b"
is_byokfalse
latency317
model_permaslug"x-ai/grok-4.20-beta-20260309"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773351391-3VgqYTa8AkwL7JGi3iDR"
upstream_id"ae0f957c-ae7c-d3fd-6c6c-9b6a26be061b"
total_cost0.0311288
cache_discount0.0006912
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
100.00% Parse dialogue n/a
dialogue
0
name"Hunter"
dialogue"Excuse me, miss. I'm Detective Hunter. I see you have a camera there. Were you photographing the apple festival? We had a mysterious disappearance and I was hoping you might have seen something."
detectedLang"en"
heavyLang"en"
scores
en0.7942386831275721
fr0.5706618962432916
tl0.5706618962432916
nl0.5419847328244275
it0.5
da0.46879150066401065
es0.4666666666666667
de0.4618834080717489
no0.45750452079566006
pt0.4360902255639098
sq0.4312796208530806
ca0.4266602962255136
ro0.4216867469879518
ms0.4140625
sv0.4091580502215657
cs0.3684210526315789
et0.34994582881906827
hr0.34676102340772996
yo0.34497816593886466
sl0.33811362382790955
sk0.2673992673992674
pl0.2485911083281152
hu0.23954372623574144
lt0.21773142112125163
tr0.18088737201365188
fi0.18032786885245902
lv0.17525773195876287
az0.1729841488628532
eu0.10581222056631893
is0.1031390134529148
vi0.099774943735934
hi0.060297572435395456
be0.05511811023622047
uk0.0498812351543943
reliabletrue
passestrue
1
name"Melanie"
dialogue"Es war schrecklich! Ich habe den ganzen Tag Landschaften fotografiert, aber dann passierte diese Sache. Der Mann verschwand direkt vor meinen Augen. Ich bin immer noch ganz durcheinander und geschüttelt!"
detectedLang"de"
heavyLang"de"
scores
de0.8250413538618145
nl0.581175753883643
no0.5370370370370371
da0.46120689655172414
sv0.44060211554109036
en0.39692982456140347
ca0.3764172335600907
it0.3631310792033349
es0.34710351377018045
ro0.3360695316272332
fr0.30450177035913
pt0.2778361344537815
is0.25876010781671155
lt0.24284140969162996
eu0.2305540011191942
tl0.20474262579525737
hu0.20150987224157957
tr0.2005813953488372
ms0.19871794871794873
et0.19684579439252337
sq0.1935483870967742
sk0.19022379269729092
lv0.1834916864608076
hr0.16362530413625304
pl0.1470223325062035
cs0.1422333125389894
sl0.1291956934768841
az0.11404639175257732
fi0.10071942446043164
yo0.0497581202487906
reliabletrue
passestrue
2
name"Hunter"
dialogue"Uh... I have no idea what you just said. Do you speak English at all?"
detectedLang"en"
heavyLang"en"
scores
en0.8195760036084799
tl0.5939086294416244
no0.5833333333333334
da0.5712754555198285
hr0.5192307692307693
ca0.5163240628778718
sv0.4897959183673469
et0.477124183006536
pl0.46236559139784944
sq0.4467496542185339
cs0.441340782122905
sk0.4244604316546763
pt0.42363112391930835
it0.4002998500749625
es0.358974358974359
lv0.3265993265993266
vi0.30313588850174217
yo0.2920353982300885
ro0.28825622775800713
tr0.2831541218637993
ms0.27140255009107467
de0.2647058823529412
sl0.23076923076923078
be0.14893617021276595
hu0.14346895074946467
az0.13606911447084233
is0.13606911447084233
lt0.13606911447084233
uk0.13606911447084233
reliabletrue
passestrue
3
name"Melanie"
dialogue"Nein, ich spreche nur Deutsch. Ich bin eine Austauschstudentin und Englisch ist noch sehr neu für mich. Aber ich habe Angst wegen dem, was ich gesehen habe."
detectedLang"de"
heavyLang"de"
scores
de0.8226950354609929
nl0.5320855614973261
no0.4277305428384566
da0.3406179351921628
en0.3346007604562738
ro0.3055555555555556
ca0.29321486268174474
ms0.2696160267111853
sk0.2622259696458685
sv0.25404944586530265
fi0.24242424242424243
hr0.2391304347826087
is0.22083704363312553
lt0.19798350137488543
sq0.19651056014692378
it0.18452935694315006
tr0.17218543046357618
pl0.16587225929456625
yo0.15213178294573643
cs0.12587412587412586
lv0.12587412587412586
es0.12236710130391174
eu0.11616161616161616
sl0.1116751269035533
hi0.10805300713557595
az0.0894901144640999
pt0.07112526539278131
fr0.06716417910447761
et0.06316916488222697
tl0.06316916488222697
reliabletrue
passestrue
4
name"Hunter"
dialogue"Maybe I can call someone who speaks German. This is important to the investigation."
detectedLang"en"
heavyLang"en"
scores
en0.8229134585771483
tl0.6738513896766876
ro0.5718540580789278
ca0.5640636846095527
fr0.5637329286798178
da0.5476003147128246
no0.5425616547334924
nl0.510221465076661
sv0.5025951557093425
it0.48614834673815904
yo0.48614834673815904
pt0.4685767097966729
es0.46211412535079516
sq0.4481765834932822
hr0.4053774560496381
cs0.3889479277364506
lt0.3876464323748669
sk0.37295528898582336
et0.3653421633554084
az0.36323366555924697
de0.3561030235162374
tr0.34059633027522934
pl0.31220095693779903
lv0.3072289156626506
sl0.3004866180048662
hu0.2776381909547738
is0.27490542244640603
ms0.2684478371501272
fi0.19692737430167598
zh0.11809815950920245
be0.10852713178294573
uk0.0987460815047022
vi0.0987460815047022
reliabletrue
passestrue
5
name"Melanie"
dialogue"Die Polizei? Sind Sie von der Polizei? Ich wollte gerade zur Polizei gehen, um zu erzählen, was ich beobachtet habe."
detectedLang"de"
heavyLang"de"
scores
de0.8423707440100883
nl0.5151280062063615
pt0.38605108055009824
en0.3365180467091295
pl0.33510638297872336
is0.32867883995703545
eu0.32795698924731176
no0.3161925601750547
sk0.30709534368070956
ro0.2913832199546485
et0.2905788876276958
da0.2857142857142857
tl0.2550655542312277
sq0.24425634824667475
sv0.24058323207776428
lt0.22263681592039805
yo0.21875
fi0.21580928481806777
hr0.21185372005044137
ms0.20785804816223066
sl0.20178799489144317
it0.19665809768637532
fr0.1925064599483204
cs0.1270949720670391
lv0.12464985994397759
az0.10714285714285714
es0.10714285714285714
hu0.10714285714285714
ca0.10329985652797705
tr0.10329985652797705
reliabletrue
passestrue
6
name"Hunter"
dialogue"I need to find out what happened. Any details could help."
detectedLang"en"
heavyLang"en"
scores
en0.8351648351648351
tl0.5306633291614518
da0.5186136071887034
ca0.4695898161244696
hr0.4573082489146165
no0.45652173913043476
pl0.410377358490566
cs0.3862520458265139
lt0.37810945273631835
yo0.37395659432387307
sk0.35233160621761656
et0.35008665511265163
sv0.3466898954703833
sq0.34210526315789475
fr0.33510638297872336
lv0.33035714285714285
ro0.2870722433460076
de0.2690058479532163
nl0.2690058479532163
tr0.258893280632411
sl0.24395161290322584
it0.23469387755102045
be0.15730337078651685
es0.1515837104072398
hu0.1515837104072398
az0.14383561643835618
is0.14383561643835618
uk0.14383561643835618
vi0.14383561643835618
pt0.13990825688073394
reliabletrue
passestrue
7
name"Melanie"
dialogue"Schauen Sie sich meine Kamera an. Die Bilder könnten Hinweise enthalten."
detectedLang"de"
heavyLang"de"
scores
de0.833280406478247
nl0.58984375
no0.5646766169154229
sv0.4852941176470589
da0.34127979924717694
tr0.31462140992167104
ms0.29624664879356566
en0.2886178861788618
eu0.2827868852459016
az0.27486187845303867
et0.26160337552742613
ca0.2595204513399154
yo0.25742574257425743
fr0.2467718794835007
es0.2456896551724138
ro0.2435158501440922
is0.22794117647058826
pl0.1758241758241758
vi0.1719242902208202
hu0.17061611374407584
cs0.12790697674418602
hr0.12790697674418602
ru0.12353923205342236
fi0.12060301507537688
it0.12060301507537688
tl0.12060301507537688
sk0.11616161616161616
sl0.11616161616161616
reliabletrue
passestrue
8
name"Hunter"
dialogue"Hold on, that's my phone. Hello? Yes, another one missing? I'll be right there."
detectedLang"en"
heavyLang"en"
scores
en0.8057713651498334
tl0.6037735849056604
da0.5240253853127833
de0.47500000000000003
fr0.39236111111111116
fi0.3794326241134752
pl0.33375634517766495
yo0.33035714285714285
no0.32605905006418484
nl0.3234536082474227
is0.3027888446215139
et0.29435483870967744
it0.27083333333333337
sv0.2636746143057504
sq0.2532005689900427
es0.25213675213675213
hr0.25
ca0.2456896551724138
cs0.23469387755102045
sk0.23469387755102045
vi0.20212765957446807
hu0.1822429906542056
lt0.1758241758241758
ms0.1732283464566929
hi0.13793103448275862
az0.11016949152542374
pt0.11016949152542374
reliabletrue
passestrue