Run: 2026-03-18-01KM09HV0GYMBMFQ7N1PCD64SA

Run Details

Model:
GPT-5.4 Mini
Test:
N-Length Sentences
Scenario:
Write sentences with 5 words each
Duration:
761ms
Cost:
$0.000274
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 worried the manor windows. Candles shivered in black halls. Dora found blood on marble. Her brother's portrait smiled strangely. Footsteps approached, slow and deliberate. Someone whispered, "He was murdered."
created_at"2026-03-18T10:58:35.166Z" 3/18/2026, 10:58:35 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency406
moderation_latency(null)
generation_time678
tokens_prompt46
tokens_completion58
native_tokens_prompt41
native_tokens_completion54
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"
usage0.00027375
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_0458f079cfe496540169ba855b3a5c81968638bae0b1fe44dd"
is_byokfalse
latency190
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-1773831515-L2stv3huxw4yHEBGTpWc"
upstream_id"resp_0458f079cfe496540169ba855b3a5c81968638bae0b1fe44dd"
total_cost0.00027375
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
05
15
25
35
45
55