Run: 2026-10-05-01M46BMRZ8SMTJ9M1F90H16TCX

Run Details

Duration:
25.2s
Cost:
$0.010472
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
By the time Detective Mara Venn reached Blackthorn House, the grandfather clock had struck midnight twice without anyone touching it. Rain followed her into the entrance hall, where seven guests stood beneath portraits whose painted eyes seemed fixed on blood. The blood belonged to Sir Edmund Vale, lying beside the fireplace with a silver blade buried deep in his throat. His widow watched Mara remove her gloves, then quietly asked whether murder remained murder if the victim had deserved it. Nobody answered, and somewhere upstairs a door slammed, although the butler insisted every room on that floor had been locked. Mara knelt beside the body, noticing ash upon his cuffs and one clean circle interrupting the dust around his wrist. Someone had taken his watch but left the emerald ring worth more than most people earned during an entire lifetime. Then the clock struck again, and all seven guests flinched except the girl holding a teacup in both trembling hands. “I told him not to wind it,” she whispered, staring at the clock as something inside began scratching against wood. Mara rose slowly, because beneath the scratching she recognized a sound no clock should make: someone was trying to breathe.
created_at"2026-10-05T15:41:44.303Z" 10/5/2026, 3:41:44 PM
model"openai/gpt-6.1-sol-20260929"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency22612
moderation_latency(null)
generation_time25066
tokens_prompt46
tokens_completion312
native_tokens_prompt41
native_tokens_completion1039
native_tokens_completion_images0
native_tokens_reasoning800
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
service_tier"default"
usage0.010472
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791214904-84TGjjUxpIOZAY5azxHV"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791214904-UJWK2zJjczPTTvSIcG2r"
upstream_id"resp_0cf65c9587b7cb24016ac3c53880a887d1838e12c69639e625"
provider_responses
0
endpoint_id"dfb9d5c3-63f9-4263-8b78-4fa97dcb3d5e"
id"resp_0cf65c9587b7cb24016ac3c53880a887d1838e12c69639e625"
is_byokfalse
latency429
model_permaslug"openai/gpt-6.1-sol-20260929"
provider_name"OpenAI"
status200
total_cost0.010472
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
020
120
220
320
420
520
620
720
820
920