Run: 2026-02-16-01KHK9FV1WYJSP8MAXJCJDN4XG

Run Details

Model:
GPT-5 Nano
Test:
Language Writing
Scenario:
Character dialogue (French) in a story
Duration:
52.8s
Cost:
$0.002342
Provider:
OpenAI

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

AI
Marie: "C'est bouleversant. Je suis très troublée par ce qui est arrivé récemment dans notre ville." Hunter: "I'm Detective Hunter. There's been a string of disappearances in Alborn. Have you heard anything about the recent event?" Marie: "Désolée, je ne parle pas anglais." Hunter: "I don't understand French. Tell me in simple English what you know about the recent event." Marie: "Je n'ai vu personne d'inhabituel, juste des silhouettes près du festival de la pomme, rien d'autre." Hunter: "Okay. Did you see or hear anything unusual around the time it happened? Any strangers, noises, or lights?" Marie: "Je suis très troublée et je préfère garder mes observations pour moi." Hunter: "I have to take this call. I’ll be back shortly." Hunter: "I have to take this call. I'll come back to talk after."
created_at"2026-02-16T13:16:51.782645+00:00" 2/16/2026, 1:16:51 PM
model"openai/gpt-5-nano-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3751
moderation_latency(null)
generation_time52619
tokens_prompt316
tokens_completion1551
native_tokens_prompt267
native_tokens_completion5822
native_tokens_completion_images0
native_tokens_reasoning5568
native_tokens_cached0
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"
usage0.00234215
router(null)
provider_responses
0
id"resp_0463bffb3c60815a016993188e7ca8819694c17a15c343d793"
status200
is_byokfalse
latency110
endpoint_id"50329d77-04e1-4979-a184-c33030289476"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-nano-2025-08-07"
api_type"completions"
id"gen-1771247758-JwpCkB930eWXqw11RdmY"
upstream_id"resp_0463bffb3c60815a016993188e7ca8819694c17a15c343d793"
total_cost0.00234215
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Parse dialogue n/a
dialogue
0
name"Marie"
dialogue"C'est bouleversant. Je suis très troublée par ce qui est arrivé récemment dans notre ville."
languages
fra1
eng0.6860017123287672
passestrue
1
name"Hunter"
dialogue"I'm Detective Hunter. There's been a string of disappearances in Alborn. Have you heard anything about the recent event?"
languages
eng1
fra0.6514581026208933
passestrue
2
name"Marie"
dialogue"Désolée, je ne parle pas anglais."
languages
fra1
eng0.8597285067873304
passestrue
3
name"Hunter"
dialogue"I don't understand French. Tell me in simple English what you know about the recent event."
languages
eng1
fra0.6037162556970901
passestrue
4
name"Marie"
dialogue"Je n'ai vu personne d'inhabituel, juste des silhouettes près du festival de la pomme, rien d'autre."
languages
fra1
eng0.5657458563535911
passestrue
5
name"Hunter"
dialogue"Okay. Did you see or hear anything unusual around the time it happened? Any strangers, noises, or lights?"
languages
eng1
fra0.5745871311253496
passestrue
6
name"Marie"
dialogue"Je suis très troublée et je préfère garder mes observations pour moi."
languages
fra1
eng0.7566852367688022
passestrue
7
name"Hunter"
dialogue"I have to take this call. I’ll be back shortly."
languages
eng1
fra0.3573385518590998
passestrue
8
name"Hunter"
dialogue"I have to take this call. I'll come back to talk after."
languages
eng1
fra0.6780788576991725
passestrue