Run: 2026-03-18-01KM09ZK5CJT7SZ4QNCMC4D09D

Run Details

Model:
GPT-5.4 Mini (Reasoning, Low)
Test:
N-Length Sentences
Scenario:
Write sentences with 5 words each
Duration:
6.5s
Cost:
$0.002029
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 polished the cobblestones outside. Detective Mara entered Blackthorn Manor. Candles trembled in the corridor. A scream had already faded. At the landing, blood gleamed. Sir Alistair lay beneath portraits. His throat bore jeweled gash. Everyone swore they heard nothing. Mara noticed one window open. And one smile among guests.
created_at"2026-03-18T11:06:05.886Z" 3/18/2026, 11:06:05 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6279
moderation_latency(null)
generation_time6383
tokens_prompt46
tokens_completion349
native_tokens_prompt41
native_tokens_completion444
native_tokens_completion_images0
native_tokens_reasoning355
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"
usage0.00202875
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_063be5b64722903a0169ba871df3888194a2328746d249b98d"
is_byokfalse
latency187
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-1773831965-0V1Y4zlP3Tz8nw5hLS4e"
upstream_id"resp_063be5b64722903a0169ba871df3888194a2328746d249b98d"
total_cost0.00202875
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
05
15
25
35
45
55
65
75
85
95