Run: 2026-09-23-01M36NWNGCPVW22J2XG3285AA1

Run Details

Duration:
14.1s
Cost:
$0.000627
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
At midnight, the bell tower rang though ropes hung motionless. Inspector Vale arrived to find the manor's front door ajar. Inside, every clock had stopped at precisely eleven seventeen sharp. Lord Ashcombe lay beneath the staircase, one hand clenched tightly. Beside him, a silver key gleamed in a dark puddle. No window stood open, and no footprints crossed the snow. Yet someone had left a wet umbrella beside the fireplace. Vale glanced upstairs, where one door clicked softly shut somewhere. The housekeeper whispered, “He was alone,” then avoided Vale's gaze. Vale noticed fresh mud beneath her own polished black shoes. The murderer, Vale realized, was still somewhere inside the house.
created_at"2026-09-23T08:25:06.834Z" 9/23/2026, 8:25:06 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency13266
moderation_latency(null)
generation_time14048
tokens_prompt46
tokens_completion182
native_tokens_prompt41
native_tokens_completion1246
native_tokens_completion_images0
native_tokens_reasoning1088
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"
usage0.0006271
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790151906-uFgEy80szYrsZP0JxE6A"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790151906-prFL04aL7VPgHAE82imX"
upstream_id"resp_01694f280d11f67f016ab38ce2eba087d1a540741217f94cd3"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_01694f280d11f67f016ab38ce2eba087d1a540741217f94cd3"
is_byokfalse
latency344
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.0006271
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
sentences11
wordCounts
010
110
210
310
410
510
610
710
810
910
1010