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Run: 2026-10-05-01M46BMRZ8SMTJ9M1F90H16TCX
Run Details
Model:
GPT-6.1 Sol (Reasoning, Medium)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
25.2s
Cost:
$0.010472
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
By the time Detective Mara Venn reached Blackthorn House, the grandfather clock had struck midnight twice without anyone touching it. Rain followed her into the entrance hall, where seven guests stood beneath portraits whose painted eyes seemed fixed on blood. The blood belonged to Sir Edmund Vale, lying beside the fireplace with a silver blade buried deep in his throat. His widow watched Mara remove her gloves, then quietly asked whether murder remained murder if the victim had deserved it. Nobody answered, and somewhere upstairs a door slammed, although the butler insisted every room on that floor had been locked. Mara knelt beside the body, noticing ash upon his cuffs and one clean circle interrupting the dust around his wrist. Someone had taken his watch but left the emerald ring worth more than most people earned during an entire lifetime. Then the clock struck again, and all seven guests flinched except the girl holding a teacup in both trembling hands. “I told him not to wind it,” she whispered, staring at the clock as something inside began scratching against wood. Mara rose slowly, because beneath the scratching she recognized a sound no clock should make: someone was trying to breathe.
created_at
"2026-10-05T15:41:44.303Z"
10/5/2026, 3:41:44 PM
model
"openai/gpt-6.1-sol-20260929"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
22612
moderation_latency
(null)
generation_time
25066
tokens_prompt
46
tokens_completion
312
native_tokens_prompt
41
native_tokens_completion
1039
native_tokens_completion_images
0
native_tokens_reasoning
800
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
0.010472
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1791214904-84TGjjUxpIOZAY5azxHV"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1791214904-UJWK2zJjczPTTvSIcG2r"
upstream_id
"resp_0cf65c9587b7cb24016ac3c53880a887d1838e12c69639e625"
provider_responses
0
endpoint_id
"dfb9d5c3-63f9-4263-8b78-4fa97dcb3d5e"
id
"resp_0cf65c9587b7cb24016ac3c53880a887d1838e12c69639e625"
is_byok
false
latency
429
model_permaslug
"openai/gpt-6.1-sol-20260929"
provider_name
"OpenAI"
status
200
total_cost
0.010472
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
10
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20
6
20
7
20
8
20
9
20