Run: 2026-09-23-01M36NMQ9GNGW63CKVFB7KDSFZ

Run Details

Duration:
5.4s
Cost:
$0.000275
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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
At midnight, the bells stopped. Inspector Vale entered the ballroom. Cold rain tapped cracked windows. Lord Ashcombe lay beside champagne. Cufflinks gleamed beneath the chandelier. Nobody admitted hearing the gunshot. Then Vale noticed wet footprints. Footprints led toward the conservatory. Behind him, someone began laughing. Vale turned; everyone was watching.
created_at"2026-09-23T08:20:46.52Z" 9/23/2026, 8:20:46 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5169
moderation_latency(null)
generation_time5385
tokens_prompt46
tokens_completion98
native_tokens_prompt41
native_tokens_completion542
native_tokens_completion_images0
native_tokens_reasoning457
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"
usage0.0002751
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790151646-13JD8wNui7KW33VOTrcI"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790151646-sdA25FAM43xRYSA2XJst"
upstream_id"resp_07ccc42555237caa016ab38bdea46c87d185cc8765b1850b16"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_07ccc42555237caa016ab38bdea46c87d185cc8765b1850b16"
is_byokfalse
latency417
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.0002751
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
05
15
25
35
45
55
65
75
85
95