Run: 2026-03-18-01KM08YPY4S4V414EMF3XCTES9

Run Details

Model:
GPT-5.4 Mini (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 5 words each
Duration:
8.5s
Cost:
$0.002578
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 stitched manor windows shut. Inside, candles trembled like witnesses. A scream vanished before dawn. Inspector found blood on roses. Guests lied with polished smiles. Nearby, death kept breathing softly.
created_at"2026-03-18T10:48:08.402Z" 3/18/2026, 10:48:08 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency8360
moderation_latency(null)
generation_time8418
tokens_prompt46
tokens_completion467
native_tokens_prompt41
native_tokens_completion566
native_tokens_completion_images0
native_tokens_reasoning516
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"
usage0.00257775
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_0e83051364453a6a0169ba82e878108196af4c78b228a8071e"
is_byokfalse
latency192
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-1773830888-WzbqJXkFMBGmLyJ6i2Yb"
upstream_id"resp_0e83051364453a6a0169ba82e878108196af4c78b228a8071e"
total_cost0.00257775
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