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Run: 2026-03-06-01KK1GJTG10YW9F94PSTEVREKF
Run Details
Model:
GPT-5.4
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
3.7s
Cost:
$0.001783
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 battered Blackthorn Manor as mourners gathered beneath bruised skies. Lady Harrow's coffin waited, gleaming darkly beside wilting white lilies. Inside, clocks had stopped exactly when the widow supposedly died. Guests whispered condolences, but every glance carried calculation, dread, suspicion. A violin sobbed upstairs, though no musician had been invited. Detective Vale arrived late, rain dripping from his ash umbrella. He noticed mud across marble, leading inward from bolted doors. Then the coffin lid shifted softly, as someone breathed within.
created_at
"2026-03-06T12:05:00.04Z"
3/6/2026, 12:05:00 PM
model
"openai/gpt-5.4-20260305"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
409
moderation_latency
(null)
generation_time
3675
tokens_prompt
46
tokens_completion
145
native_tokens_prompt
41
native_tokens_completion
112
native_tokens_completion_images
0
native_tokens_reasoning
0
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
0.0017825
router
(null)
provider_responses
0
endpoint_id
"9ff5625c-403f-4d7f-b895-58ac7295062c"
id
"resp_001482299c3fcc820169aac2ec1d58819095c0d7765abd6ead"
is_byok
false
latency
166
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-1772798700-DUGpFOptwJEOx1DIxlvc"
upstream_id
"resp_001482299c3fcc820169aac2ec1d58819095c0d7765abd6ead"
total_cost
0.0017825
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