Run: 2026-03-09-01KKABVYESJ1PKEHCF96X10DGJ

Run Details

Model:
GPT-5.4 (Reasoning, Low)
Test:
N-Length Sentences
Scenario:
Write sentences with 5 words each
Duration:
10.1s
Cost:
$0.006132
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. Guests arrived with smiling lies. Candles shivered along the corridor. Somewhere, a clock swallowed midnight. Then Eleanor screamed behind oak. We found Sir Julian smiling. His throat wore scarlet silence. Beside him, champagne breathed almonds. Nobody touched the fallen dagger. Everybody watched everybody else carefully.
created_at"2026-03-09T22:35:46.229Z" 3/9/2026, 10:35:46 PM
model"openai/gpt-5.4-20260305"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency9543
moderation_latency(null)
generation_time9629
tokens_prompt46
tokens_completion427
native_tokens_prompt41
native_tokens_completion402
native_tokens_completion_images0
native_tokens_reasoning320
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"
usage0.0061325
router(null)
provider_responses
0
endpoint_id"9ff5625c-403f-4d7f-b895-58ac7295062c"
id"resp_024a126fcadd1fa50169af4b425788819490e2ad0960f2c886"
is_byokfalse
latency210
model_permaslug"openai/gpt-5.4-20260305"
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-1773095746-BbFUt71tZ3BuhFWmFtmK"
upstream_id"resp_024a126fcadd1fa50169af4b425788819490e2ad0960f2c886"
total_cost0.0061325
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