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Run: 2026-10-27-01M5YF57ABFJPSMQ9RKF0ZCB4V
Run Details
Model:
GPT-6.1 Terra (Reasoning, Medium)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
11.7s
Cost:
$0.004756
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
The rain had stopped before dawn, leaving the village streets shining like black glass beneath the lamps outside Saint Jude’s. Detective Mara Voss found the first footprint on the church steps, pressed into blood that no rain had yet touched. Inside, the organ was playing softly, although its bench stood empty and the church had been locked since precisely midnight. At the altar lay Reverend Bell, his white robes arranged neatly around him, his open eyes fixed upon the ceiling. Someone had placed a silver coin beneath his tongue and folded his hands around a key made of dark bone. Mara recognized the coin immediately, though she had not seen one since her brother vanished twenty years before that morning. Behind her, the church door clicked shut, and the music stopped on a note that seemed to hang there forever. Then a voice from the confessional whispered her brother’s name, and Mara realized the church had never been truly empty.
created_at
"2026-10-27T10:40:37.205Z"
10/27/2026, 10:40:37 AM
model
"openai/gpt-6.1-terra-20261026"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
4304
moderation_latency
(null)
generation_time
11656
tokens_prompt
46
tokens_completion
701
native_tokens_prompt
41
native_tokens_completion
943
native_tokens_completion_images
0
native_tokens_reasoning
753
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
0.004756
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.22.1; linux; x64))"
http_referer
(null)
request_id
"req-1793097637-cgo4EM89xtZtIqfGtnW6"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1793097637-Ys1zuESAtByxD5hyxMwY"
upstream_id
"resp_081a0a5b0db0a0e2016ae07fa5467887d193a8f1d44a059a31"
provider_responses
0
endpoint_id
"2d2ad10f-098e-4bbf-aa95-11f705b2b9a2"
id
"resp_081a0a5b0db0a0e2016ae07fa5467887d193a8f1d44a059a31"
is_byok
false
latency
401
model_permaslug
"openai/gpt-6.1-terra-20261026"
provider_name
"OpenAI"
status
200
total_cost
0.004756
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