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Run: 2026-10-05-01M46B2HJJQE0VN27BTGX7BV5E
Run Details
Model:
GPT-6.1 Sol (Reasoning, Medium)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
25.2s
Cost:
$0.009302
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 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 grandfather clock struck thirteen, and every guest in Blackthorn House pretended not to hear the extra chime. Inspector Vale arrived before dawn, summoned by a telegram containing only seven words: Your brother has finally told the truth. He found his brother seated at the breakfast table, wearing evening clothes and a smile nobody in the family recognized. The silver teapot stood beside him, still warm, although the housekeeper swore nobody had entered that room since yesterday evening. Outside, rain scratched the windows while six relatives waited beneath ancestral portraits, each holding a different explanation for being awake. Only the youngest daughter said nothing, watching instead the empty chair opposite the body as though someone occupied it still. Vale removed his gloves and noticed a thread caught beneath his brother's wedding ring, which had been missing for years. Then, from somewhere inside the locked nursery upstairs, a child began humming the song they had buried with their mother.
created_at
"2026-10-05T15:31:47.113Z"
10/5/2026, 3:31:47 PM
model
"openai/gpt-6.1-sol-20260929"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
22956
moderation_latency
(null)
generation_time
24882
tokens_prompt
46
tokens_completion
261
native_tokens_prompt
41
native_tokens_completion
922
native_tokens_completion_images
0
native_tokens_reasoning
728
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
0.009302
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1791214307-p2mfALzt4XWYeQjiBQ8L"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1791214307-iMoNmwwEgGhuQpKpqyoj"
upstream_id
"resp_06c3b5ea5661d6cc016ac3c2e349d887d19229a241eb7593c1"
provider_responses
0
endpoint_id
"dfb9d5c3-63f9-4263-8b78-4fa97dcb3d5e"
id
"resp_06c3b5ea5661d6cc016ac3c2e349d887d19229a241eb7593c1"
is_byok
false
latency
308
model_permaslug
"openai/gpt-6.1-sol-20260929"
provider_name
"OpenAI"
status
200
total_cost
0.009302
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
100.00%
Matches word count
n/a
neededClean
false
sentences
8
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20
6
20
7
20