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Run: 2026-07-09-01KX4182HDYV14A8XNZDBBM5NK
Run Details
Model:
GPT-5.6 Sol
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
4.6s
Cost:
$0.004225
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
84.26%
Matches word count
(details)
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
Rain polished the manor windows while Inspector Vale counted thirteen guests and noticed one chair remained conspicuously empty beside him. At midnight, the grandfather clock coughed twice, stopped, and revealed blood creeping silently beneath the locked library door before them. Nobody moved until Lady Ashcombe whispered that her husband possessed the only key, hanging inside his waistcoat pocket that very evening. Vale opened the door and found Lord Ashcombe seated upright, smiling faintly, with no wound except a blackened fingertip visible. On the desk, twelve untouched champagne glasses surrounded a thirteenth glass, still warm, bearing Inspector Vale's unmistakable engraved initials beneath it.
created_at
"2026-07-09T18:11:40.726Z"
7/9/2026, 6:11:40 PM
model
"openai/gpt-5.6-sol-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
455
moderation_latency
(null)
generation_time
4566
tokens_prompt
46
tokens_completion
184
native_tokens_prompt
41
native_tokens_completion
134
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)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"completed"
service_tier
"default"
usage
0.004225
router
(null)
provider_responses
0
endpoint_id
"a54c5de0-89bf-4ad7-a212-cf977eed918a"
id
"resp_03bf174f8688f8f7016a4fe45ccaf88194a86321a75adf34e3"
is_byok
false
latency
193
model_permaslug
"openai/gpt-5.6-sol-20260709"
provider_name
"OpenAI"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer
(null)
request_id
"req-1783620700-JXwMALGLpihagzecULOI"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1783620700-luDQoElzn1UiuhEloQVY"
upstream_id
"resp_03bf174f8688f8f7016a4fe45ccaf88194a86321a75adf34e3"
total_cost
0.004225
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
response_cache_source_id
(null)
data_region
"global"
Evaluation details
Result
Evaluator
Details
Meta Data
84.26%
Matches word count
n/a
neededClean
false
sentences
5
wordCounts
0
20
1
20
2
21
3
20
4
21