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Run: 2026-03-09-01KKABXWAPSXMPT4PMPS1K9ZVE
Run Details
Model:
GPT-5.4 (Reasoning, Low)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
8.5s
Cost:
$0.008443
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
Rain polished the mansion windows while midnight swallowed the grounds. Inside, guests laughed too loudly, hiding nerves behind crystal glasses. Lady Harroway announced dessert, then vanished before the candles guttered. A scream followed, sharp enough to silence every ticking clock. We found her sprawled beside the library's unlatched secret door. Blood darkened the Persian rug like spilled wine nobody wanted. On the mantel, nine silver figurines stood; one lay missing. Detective Vale removed his gloves and smiled without comfort whatsoever. Someone here knew the house intimately, and death entered invited. Outside, thunder answered him, as if the killer agreed completely.
created_at
"2026-03-09T22:36:49.376Z"
3/9/2026, 10:36:49 PM
model
"openai/gpt-5.4-20260305"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
7449
moderation_latency
(null)
generation_time
8342
tokens_prompt
46
tokens_completion
178
native_tokens_prompt
41
native_tokens_completion
556
native_tokens_completion_images
0
native_tokens_reasoning
421
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"completed"
usage
0.0084425
router
(null)
provider_responses
0
endpoint_id
"9ff5625c-403f-4d7f-b895-58ac7295062c"
id
"resp_027162fb73cf10af0169af4b8176b881948c511327c07a7d23"
is_byok
false
latency
303
model_permaslug
"openai/gpt-5.4-20260305"
provider_name
"OpenAI"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer
(null)
api_type
"completions"
id
"gen-1773095809-HJAM3otiK3vWhGwk1a4K"
upstream_id
"resp_027162fb73cf10af0169af4b8176b881948c511327c07a7d23"
total_cost
0.0084425
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
10
8
10
9
10