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Run: 2026-09-23-01M37HQCYCJYRZCH1D5PNN2EMN
Run Details
Model:
GPT-6 Sol (Reasoning, Medium)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
17.5s
Cost:
$0.012562
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
95.63%
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
At midnight the bell above Blackthorn Hall rang thirteen times, though its ancient gears had stopped decades before the murder. Detective Mara Vale arrived beneath a storm-torn sky, carrying a letter addressed in her own handwriting from tomorrow morning. Inside the library, Lord Blackthorn lay beside the fireplace, his open eyes reflecting the stopped clock and its empty face. A silver key rested between his fingers, while every door in the house remained locked from the inside that night. The butler insisted no guest had entered since supper, yet nine damp footprints crossed the freshly polished floor behind him. Mara counted them twice before noticing that the last print pointed toward the wall beside the fireplace, not the window. From somewhere upstairs, a woman began singing the lullaby Mara remembered from a childhood she had never spoken about aloud. The butler went pale and whispered that Lady Blackthorn had been dead for twenty-seven years as of that very night. Then the letter in Mara’s pocket began to tick in perfect time with the slow footsteps approaching from behind her.
created_at
"2026-09-23T16:31:34.356Z"
9/23/2026, 4:31:34 PM
model
"openai/gpt-6-sol-20260922"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
15988
moderation_latency
(null)
generation_time
17491
tokens_prompt
46
tokens_completion
283
native_tokens_prompt
41
native_tokens_completion
1248
native_tokens_completion_images
0
native_tokens_reasoning
1034
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
0.012562
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer
(null)
request_id
"req-1790181094-s46XVzPvz170ZyS2oddi"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790181094-EdWSXCeOtkb9r99mzljM"
upstream_id
"resp_0ba69733324d6cbe016ab3fee67ccc87d1b69ae752e84306c9"
provider_responses
0
endpoint_id
"1cfc7d9d-4404-4b8e-9ee4-58ae45c9dcd4"
id
"resp_0ba69733324d6cbe016ab3fee67ccc87d1b69ae752e84306c9"
is_byok
false
latency
1002
model_permaslug
"openai/gpt-6-sol-20260922"
provider_name
"OpenAI"
status
200
total_cost
0.012562
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
response_cache_source_id
(null)
data_region
"global"
workspace_id
"97e315e5-d303-487d-83c1-83180e8a13d4"
Evaluation details
Result
Evaluator
Details
Meta Data
95.63%
Matches word count
n/a
neededClean
false
sentences
9
wordCounts
0
20
1
19
2
20
3
20
4
20
5
20
6
20
7
20
8
20