Run: 2026-09-23-01M36NXM1S0Z0TP5N9K8D76256

Run Details

Duration:
5.9s
Cost:
$0.000044
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
91.36% 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 lighthouse lamp stopped turning above the harbor. Mara found its keeper facedown beside the extinguished lantern. His pocket watch still ticked, though its hands pointed backward. Outside, footsteps crossed the snow toward the locked door. Mara counted seven prints, then noticed none returning toward town. Behind her, someone whispered, “You were supposed to arrive tomorrow.”
created_at"2026-09-23T08:25:38.111Z" 9/23/2026, 8:25:38 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5503
moderation_latency(null)
generation_time5855
tokens_prompt46
tokens_completion102
native_tokens_prompt41
native_tokens_completion80
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"
usage0.0000441
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790151938-8wr4o6SAfcCsPaITNXHl"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790151938-zO7XZ2SYN391Zucsn8og"
upstream_id"resp_0160166af89c3dca016ab38d02332487d1a7d9fba50b278f7a"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_0160166af89c3dca016ab38d02332487d1a7d9fba50b278f7a"
is_byokfalse
latency4243
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.0000441
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
91.36% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
010
19
210
39
410
510