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Run: 2026-03-09-01KKABXJWNFPYK62M6HVWSMVXZ
Run Details
Model:
GPT-5.4 (Reasoning, Low)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
9.5s
Cost:
$0.008008
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, silver candles trembled beside portraits with watchful, varnished eyes. Guests hushed when Evelyn Cross descended, wearing her widow's diamonds. She smiled once, thinly, then reached for the poisoned champagne. The glass slipped, shattered, and silence opened like a grave. Before anyone moved, the grandfather clock struck one accusing note. Detective Rowan Vale noticed mud staining the Persian runner nearby. Somebody had entered recently, and somebody here already knew why.
created_at
"2026-03-09T22:36:39.711Z"
3/9/2026, 10:36:39 PM
model
"openai/gpt-5.4-20260305"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
8969
moderation_latency
(null)
generation_time
9160
tokens_prompt
46
tokens_completion
404
native_tokens_prompt
41
native_tokens_completion
527
native_tokens_completion_images
0
native_tokens_reasoning
414
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
0.0080075
router
(null)
provider_responses
0
endpoint_id
"9ff5625c-403f-4d7f-b895-58ac7295062c"
id
"resp_03fbf5fcd5e5398b0169af4b77cc7881978461f3980966feae"
is_byok
false
latency
227
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-1773095799-IcZKFRHexf7UEyV8D8LS"
upstream_id
"resp_03fbf5fcd5e5398b0169af4b77cc7881978461f3980966feae"
total_cost
0.0080075
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
8
wordCounts
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
10