Run: 2026-09-23-01M36RFNNV6ZM9GQG5BN390WS2

Run Details

Duration:
14.3s
Cost:
$0.000711
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 observatory bell rang without anyone touching it. Inspector Vale arrived soaked, clutching the envelope nobody recognized yet. Inside, Professor Wren lay beside his shattered telescope, quite motionless. Blood stained the star charts, though none marked his hands. Someone erased each constellation from the observatory blackboard before dawn. Vale noticed one wet footprint leading toward the locked door. Then the envelope rustled, though its seal remained unbroken still. From inside, a woman's voice whispered, “You are already late.”
created_at"2026-09-23T09:10:26.756Z" 9/23/2026, 9:10:26 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency11233
moderation_latency(null)
generation_time14268
tokens_prompt46
tokens_completion401
native_tokens_prompt41
native_tokens_completion1413
native_tokens_completion_images0
native_tokens_reasoning1302
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"
usage0.0007106
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1790154626-JccrpZHWHZFYUHFOe2vl"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790154626-u5HSr5TGA6xYmTKjeDLf"
upstream_id"resp_04b310225a1706e2016ab39782dd8087d19792789763b6fd4b"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_04b310225a1706e2016ab39782dd8087d19792789763b6fd4b"
is_byokfalse
latency424
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.0007106
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