Run: 2026-03-18-01KM088WZ26BBXGYMBCC7SANH6

Run Details

Duration:
10.5s
Cost:
$0.002717
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 stitched silver lines across the manor's windows all night. At dawn, Inspector Vale found the body beneath grand staircase. Blood pooled neatly, as though someone had arranged the scene. Guests whispered, each alibi polished, each smile trembling like glass. Vale noticed muddy footprint leading nowhere and everywhere at once. Above them, the clock struck thirteen, and nobody dared breathe.
created_at"2026-03-18T10:36:13.676Z" 3/18/2026, 10:36:13 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency10194
moderation_latency(null)
generation_time10310
tokens_prompt46
tokens_completion474
native_tokens_prompt41
native_tokens_completion597
native_tokens_completion_images0
native_tokens_reasoning512
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"
usage0.00271725
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_0e370bd8f24d9e020169ba801dbe188194a808aa3ce95f8ce9"
is_byokfalse
latency186
model_permaslug"openai/gpt-5.4-mini-20260317"
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-1773830173-97MGzyZyt30ncpi0xed5"
upstream_id"resp_0e370bd8f24d9e020169ba801dbe188194a808aa3ce95f8ce9"
total_cost0.00271725
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
010
110
210
310
410
510