Run: 2026-07-09-01KX41EX8BBC2WE8AJX80V0CV6

Run Details

Duration:
2.4s
Cost:
$0.002008
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
32.38% 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 hammered cobblestones while twelve guests waited inside, each denying they had heard the scream echo across the square. The victim's watch had stopped precisely at eleven forty seven, although every clock nearby insisted it was midnight. Vale examined muddy footprints circling the body, then noticed one trail ended abruptly beside the locked iron gate. From above, the clocktower bell began tolling thirteen times, and someone in the crowd whispered the mayor's name.
created_at"2026-07-09T18:15:24.706Z" 7/9/2026, 6:15:24 PM
model"openai/gpt-5.6-terra-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency526
moderation_latency(null)
generation_time2194
tokens_prompt46
tokens_completion154
native_tokens_prompt41
native_tokens_completion127
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"
usage0.0020075
router(null)
provider_responses
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endpoint_id"3cc89000-ae34-4dde-9c7d-5ce009c8af0b"
id"resp_00c3eecea9fbfc68016a4fe53cce848195a469dc954d774cc7"
is_byokfalse
latency235
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-1783620924-gFTfpgUq4zUkD8P7XGWa"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620924-O0vSeOyLQLeW5Yjq7yZL"
upstream_id"resp_00c3eecea9fbfc68016a4fe53cce848195a469dc954d774cc7"
total_cost0.0020075
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
32.38% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
019
119
218
318
418