Run: 2026-03-18-01KM09TSP9J0F3ADDHNBTHHRHQ

Run Details

Model:
GPT-5.4 Mini
Test:
N-Length Sentences
Scenario:
Write sentences with 5 words each
Duration:
716ms
Cost:
$0.000251
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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain slicked the manor steps. Inside, silence clung to wallpaper. A chandelier swayed above dinner. Detective Vale arrived without ceremony. Bodies dislike being discovered early.
created_at"2026-03-18T11:03:28.727Z" 3/18/2026, 11:03:28 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency429
moderation_latency(null)
generation_time660
tokens_prompt46
tokens_completion50
native_tokens_prompt41
native_tokens_completion49
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"
usage0.00025125
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_0d04f3dabb27ae4d0169ba8680cc5881948fcbc9c6736786c3"
is_byokfalse
latency224
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-1773831808-0BgT40NaMoHuZTO6htiy"
upstream_id"resp_0d04f3dabb27ae4d0169ba8680cc5881948fcbc9c6736786c3"
total_cost0.00025125
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
05
15
25
35
45