Run: 2026-03-06-01KK1J425JJ76K4GP37X6Z884X

Run Details

Duration:
3.2s
Cost:
$0.001618
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
58.71% 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
By midnight, Blackthorn Manor crouched beneath freezing rain, its windows glowing like watchful eyes above the cliffs and crashing sea. Inside, twelve guests circled the fire in practiced laughter, while somewhere upstairs, a clock ticked with dreadful insistence. Lady Corven raised her glass for a toast, but the lights failed suddenly, drowning the room in startled silence. When brightness returned, her body lay across the Persian rug, crimson spreading outward, and every smiling face had changed.
created_at"2026-03-06T12:31:53.53Z" 3/6/2026, 12:31:53 PM
model"openai/gpt-5.4-20260305"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency428
moderation_latency(null)
generation_time3141
tokens_prompt46
tokens_completion128
native_tokens_prompt41
native_tokens_completion101
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)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.0016175
router(null)
provider_responses
0
endpoint_id"9ff5625c-403f-4d7f-b895-58ac7295062c"
id"resp_0ec238242d5e46810169aac93995208197b642ade43bcf441c"
is_byokfalse
latency261
model_permaslug"openai/gpt-5.4-20260305"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1772800313-NQxF2UYgyR8TCKDqDjkC"
upstream_id"resp_0ec238242d5e46810169aac93995208197b642ade43bcf441c"
total_cost0.0016175
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
58.71% Matches word count n/a
neededCleanfalse
sentences4
wordCounts
020
118
219
319