Run: 2026-07-09-01KX3ZZ41KCVHRE70ZZXXPWH5V

Run Details

Duration:
2.5s
Cost:
$0.001723
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
80.33% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
At midnight, Inspector Vale found the mayor dead beneath the clocktower, clutching a silver key stained with fresh blood. Rain polished the cobblestones while witnesses whispered nearby, each insisting they had heard nothing except the bell’s final chime. Vale noticed muddy footprints circling the body, then stopping abruptly beside an open drain where darkness swallowed every possible answer. Above them, the clock hands pointed backward, and someone had carefully removed the minute hand before anyone arrived at all.
created_at"2026-07-09T17:49:19.157Z" 7/9/2026, 5:49:19 PM
model"openai/gpt-5.6-terra-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency501
moderation_latency(null)
generation_time1953
tokens_prompt46
tokens_completion135
native_tokens_prompt41
native_tokens_completion108
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"
usage0.0017225
router(null)
provider_responses
0
endpoint_id"3cc89000-ae34-4dde-9c7d-5ce009c8af0b"
id"resp_0c21883adec16e6d016a4fdf1f43c48194a1c8d55b03d75619"
is_byokfalse
latency192
model_permaslug"openai/gpt-5.6-terra-20260709"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783619359-PAu02SeSXc58d2ASzQr4"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783619359-EtDCo24Thh9qpPAiBaid"
upstream_id"resp_0c21883adec16e6d016a4fdf1f43c48194a1c8d55b03d75619"
total_cost0.0017225
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
80.33% Matches word count n/a
neededCleanfalse
sentences4
wordCounts
019
119
220
320