Run: 2026-09-23-01M36NWGGAZFJ0MRQ22P9STC0D

Run Details

Duration:
12.8s
Cost:
$0.000448
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 manor clock stopped before the final chime. Inspector Vale found the library door firmly locked from inside. Rain tapped against windows while the library fire burned blue. Lord Ashcombe lay beside his overturned glass, still faintly smiling. No blood marked him, yet everyone feared the silver needle. Vale noticed wet footprints ending beneath the massive writing desk. Then someone upstairs began playing the dead man's waltz again. Vale turned, and every guest suddenly watched the staircase silently.
created_at"2026-09-23T08:25:01.712Z" 9/23/2026, 8:25:01 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5120
moderation_latency(null)
generation_time12801
tokens_prompt46
tokens_completion653
native_tokens_prompt41
native_tokens_completion888
native_tokens_completion_images0
native_tokens_reasoning778
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"
usage0.0004481
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790151901-eOEk5Eodgffaxao4tj3H"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790151901-Yh15k8PfdOwu1arnju7q"
upstream_id"resp_0db74f5292344b7a016ab38cddd15087d188bac29fbcf36da6"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_0db74f5292344b7a016ab38cddd15087d188bac29fbcf36da6"
is_byokfalse
latency1167
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.0004481
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
sentences8
wordCounts
010
110
210
310
410
510
610
710