Run: 2026-07-09-01KX41ANHY8K75HB1802DYZ8JP

Run Details

Duration:
5.3s
Cost:
$0.005045
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 polished the courthouse windows while Inspector Vale arrived alone. Inside, the dead judge waited beneath his fallen portrait, motionless. His right hand clutched a silver key, still dripping rainwater. Three witnesses watched Vale enter, each hiding something different tonight. Nobody mentioned the locked study or missing blue ledger upstairs. Vale noticed muddy footprints crossing the carpet toward the fireplace. At midnight, someone had burned a message into ashes nearby. Only one word survived: Remember what she promised yesterday, Inspector. Then the courthouse bell rang, though its ropes were severed. Vale looked upward as footsteps whispered above the ceiling again. Everyone froze, but the judge's corpse slowly opened one eye.
created_at"2026-07-09T18:13:05.733Z" 7/9/2026, 6:13:05 PM
model"openai/gpt-5.6-luna-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1798
moderation_latency(null)
generation_time5060
tokens_prompt46
tokens_completion494
native_tokens_prompt41
native_tokens_completion834
native_tokens_completion_images0
native_tokens_reasoning682
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"
usage0.005045
router(null)
provider_responses
0
endpoint_id"eebea444-34a5-4642-a766-cb319471d33a"
id"resp_07a1e42f6a2371dd016a4fe4b1c900819684868829fb194f58"
is_byokfalse
latency194
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-1783620785-vbdjItLoIpKsG9H5S9gM"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620785-PAduap0mf9UwMV67YXIk"
upstream_id"resp_07a1e42f6a2371dd016a4fe4b1c900819684868829fb194f58"
total_cost0.005045
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
sentences11
wordCounts
010
110
210
310
410
510
610
710
810
910
1010