Run: 2026-10-05-01M46BAQBP3ESW15F89HP6G02W

Run Details

Duration:
23.2s
Cost:
$0.009552
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 midnight, the rain had erased every footprint outside Blackthorn House, except the one leading away from its locked chapel. Inspector Vale arrived carrying a broken umbrella and the letter his dead wife had apparently posted only three days earlier. Inside, seven guests waited beneath portraits whose painted eyes seemed fixed upon the silver tray resting beside an empty armchair. The tray held a cracked teacup, a wedding ring, and a brass key still wet with something darker than rain. Nobody mentioned the body until the grandfather clock struck thirteen, and the youngest guest began laughing without lifting her eyes. Sir Edmund lay upstairs with his throat cut neatly, although every knife in the house remained locked inside the kitchen. Vale asked who had discovered him, and seven people answered together, each naming somebody who was not in the room. But when he unfolded his wife's letter, the first line made their answers seem suddenly less impossible than his arrival. “My darling, if Edmund is dead when you read this, please remember that I warned you about the eighth guest.”
created_at"2026-10-05T15:36:14.973Z" 10/5/2026, 3:36:14 PM
model"openai/gpt-6.1-sol-20260929"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency10079
moderation_latency(null)
generation_time23142
tokens_prompt46
tokens_completion693
native_tokens_prompt41
native_tokens_completion947
native_tokens_completion_images0
native_tokens_reasoning736
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"
usage0.009552
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791214574-I1i1Dds17iNRsOvrrCYX"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791214574-ADv1rS8ZF4uswh9KO2ng"
upstream_id"resp_0016d03e47f20212016ac3c3ef140887d199ef3a3948a2ad1a"
provider_responses
0
endpoint_id"dfb9d5c3-63f9-4263-8b78-4fa97dcb3d5e"
id"resp_0016d03e47f20212016ac3c3ef140887d199ef3a3948a2ad1a"
is_byokfalse
latency405
model_permaslug"openai/gpt-6.1-sol-20260929"
provider_name"OpenAI"
status200
total_cost0.009552
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
sentences9
wordCounts
020
120
220
320
420
520
620
720
820