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Run: 2026-10-05-01M46B7KHD3H2998CCWJKNWS87
Run Details
Model:
GPT-6.1 Sol (Reasoning, Medium)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
21.3s
Cost:
$0.008612
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 Inspector Vale reached Blackthorn House, the rain had washed every footprint from the gravel beneath its windows. The front door stood open, though the butler insisted he had locked it moments before the grandfather clock struck midnight. In the drawing room, Lord Ashcombe sat beside an untouched brandy, his throat marked by a thin ribbon of blood. Someone had placed a silver key upon his tongue, and someone else had carefully turned every portrait toward the wall. Vale counted five people waiting near the fireplace, all dressed for dinner, all watching the dead man's motionless hands instead. His daughter broke the silence first, asking whether a man could still change his will after somebody had killed him. Before Vale could answer, a faint knocking sounded beneath the floorboards, three measured taps followed by a long, deliberate pause. The butler dropped his candle, and for the first time that evening, the widow looked genuinely afraid of the dark.
created_at
"2026-10-05T15:34:32.757Z"
10/5/2026, 3:34:32 PM
model
"openai/gpt-6.1-sol-20260929"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
10235
moderation_latency
(null)
generation_time
21255
tokens_prompt
46
tokens_completion
551
native_tokens_prompt
41
native_tokens_completion
853
native_tokens_completion_images
0
native_tokens_reasoning
659
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
0.008612
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1791214472-RtdDIkYW5w6QNtG5wjYB"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1791214472-S9C12NKCSe0hbkJ6R97a"
upstream_id
"resp_0813bd40a2dfea34016ac3c388ea5087d191331d7630a0603a"
provider_responses
0
endpoint_id
"dfb9d5c3-63f9-4263-8b78-4fa97dcb3d5e"
id
"resp_0813bd40a2dfea34016ac3c388ea5087d191331d7630a0603a"
is_byok
false
latency
470
model_permaslug
"openai/gpt-6.1-sol-20260929"
provider_name
"OpenAI"
status
200
total_cost
0.008612
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