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Run: 2026-10-27-01M5YHMEA31JPSZZJNWYZVZGVX
Run Details
Model:
GPT-6.1 Terra (Reasoning, Medium)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
7.3s
Cost:
$0.002906
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
The rain began precisely when the first guest stopped breathing. At midnight, Blackthorn Manor held eleven people and twelve secrets. Detective Mara Voss had arrived expecting dinner, not a corpse. The host lay beneath the chandelier, clutching a silver key. A thin red thread disappeared beneath his tightly closed lips. Nobody admitted hearing a struggle, though everyone had heard screaming. Outside, the bridge had vanished beneath the swollen black river. Inside, someone had locked every door from the wrong side. Mara knelt, careful not to disturb the darkening Persian carpet. The dead man’s watch had stopped exactly three minutes ago. Then the grandfather clock struck thirteen, and somebody upstairs laughed.
created_at
"2026-10-27T11:23:53.038Z"
10/27/2026, 11:23:53 AM
model
"openai/gpt-6.1-terra-20261026"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
4399
moderation_latency
(null)
generation_time
7271
tokens_prompt
46
tokens_completion
472
native_tokens_prompt
41
native_tokens_completion
573
native_tokens_completion_images
0
native_tokens_reasoning
430
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
0.002906
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.22.1; linux; x64))"
http_referer
(null)
request_id
"req-1793100233-vkh4h95N7n7aEQ7TbBF7"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1793100233-0MuGenmIerX82wfBEBo3"
upstream_id
"resp_0f19ab4ec0f70fc1016ae089c91aec87d1853273e16d278ae8"
provider_responses
0
endpoint_id
"2d2ad10f-098e-4bbf-aa95-11f705b2b9a2"
id
"resp_0f19ab4ec0f70fc1016ae089c91aec87d1853273e16d278ae8"
is_byok
false
latency
270
model_permaslug
"openai/gpt-6.1-terra-20261026"
provider_name
"OpenAI"
status
200
total_cost
0.002906
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
11
wordCounts
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
10
8
10
9
10
10
10