Run: 2026-03-18-01KM08EV7TX8TF112TR6TSR5GN

Run Details

Model:
GPT-5.4 Mini
Test:
N-Length Sentences
Scenario:
Write sentences with 5 words each
Duration:
889ms
Cost:
$0.000431
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
Fog cloaked Blackthorn Manor tonight. A scream shattered the silence. Candles trembled in the hall. Detective Vale arrived before dawn. Blood stained the marble steps. Lady Ashcroft lay among roses. Her eyes stared upward, unseeing. Everyone claimed innocence, then lied. A clock ticked relentlessly nearby. Vale noticed a missing key.
created_at"2026-03-18T10:39:28.52Z" 3/18/2026, 10:39:28 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency393
moderation_latency(null)
generation_time818
tokens_prompt46
tokens_completion95
native_tokens_prompt41
native_tokens_completion89
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"
usage0.00043125
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_039ef89ba98578560169ba80e09428819096782886b3ba6f2e"
is_byokfalse
latency169
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-1773830368-DoRhG8PdlHL0ts8rNqVy"
upstream_id"resp_039ef89ba98578560169ba80e09428819096782886b3ba6f2e"
total_cost0.00043125
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