Run: 2026-07-09-01KX4128M9M8N3DBHGAXBVDE4X

Run Details

Duration:
1.3s
Cost:
$0.000551
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
Rain battered Blackthorn Manor as Detective Vale arrived without ceremony. Inside, every clock stopped precisely when the thunder struck midnight. Lord Ashcombe lay beneath portraits, clutching one crimson, broken rose. His guests gathered silently, each hiding secrets behind practiced mourning. Vale noticed muddy footprints leading nowhere beyond the locked conservatory. Then someone whispered, “The murderer remains here among us tonight.”
created_at"2026-07-09T18:08:30.352Z" 7/9/2026, 6:08:30 PM
model"openai/gpt-5.6-luna-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency386
moderation_latency(null)
generation_time1217
tokens_prompt46
tokens_completion119
native_tokens_prompt41
native_tokens_completion85
native_tokens_completion_images0
native_tokens_reasoning0
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"
usage0.000551
router(null)
provider_responses
0
endpoint_id"eebea444-34a5-4642-a766-cb319471d33a"
id"resp_056c0f6037c4138d016a4fe39e6e008196bef87550b43e12b7"
is_byokfalse
latency223
model_permaslug"openai/gpt-5.6-luna-20260709"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783620510-Rg6rVOpyiyJHShMHliVV"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620510-MoANhDmoyveY3aXwkqBl"
upstream_id"resp_056c0f6037c4138d016a4fe39e6e008196bef87550b43e12b7"
total_cost0.000551
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
010
110
210
310
410
510