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Run: 2026-03-09-01KKACDBMZSYVW2PEDN3MDZSD0
Run Details
Model:
GPT-5.4 (Reasoning, Low)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
10.3s
Cost:
$0.008757
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 needled the manor windows as midnight swallowed Blackthorn Hall. Inside, twelve guests lingered silently around the unfinished anniversary supper. A clock chimed once, then stopped, as though startled itself. Lady Morwen appeared smiling, carrying champagne, secrets, and crimson lipstick. She toasted absent husbands, faithful friends, and profitable lies tonight. Then darkness fell abruptly, and someone screamed beside the hearth. When candles returned, Lady Morwen lay motionless beneath toppled roses. The champagne bottle glittered nearby, uncorked, accusing everyone without preference. On her throat, a pearl necklace tightened like patient fingers. No door had opened, yet one guest was missing already.
created_at
"2026-03-09T22:45:16.583Z"
3/9/2026, 10:45:16 PM
model
"openai/gpt-5.4-20260305"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
9959
moderation_latency
(null)
generation_time
10094
tokens_prompt
46
tokens_completion
486
native_tokens_prompt
41
native_tokens_completion
577
native_tokens_completion_images
0
native_tokens_reasoning
436
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
0.0087575
router
(null)
provider_responses
0
endpoint_id
"9ff5625c-403f-4d7f-b895-58ac7295062c"
id
"resp_0d8aa53cc4de984f0169af4d7ca4208197bc1f963625e20cea"
is_byok
false
latency
149
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-1773096316-TQM3NvS7NkdNvSqlIXWP"
upstream_id
"resp_0d8aa53cc4de984f0169af4d7ca4208197bc1f963625e20cea"
total_cost
0.0087575
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