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Run: 2026-10-27-01M5YEJKS8H81SMKB2Q5KHRZFM
Run Details
Model:
GPT-6.1 Terra (Reasoning, Medium)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
8.2s
Cost:
$0.003466
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
Snow fell silently as Detective Mara Vale approached Blackthorn House. Every window glowed, except the one above the locked library. Inside, a grandfather clock announced midnight with thirteen deliberate chimes. The butler met her beneath a portrait of the deceased. His hands were clean, but blood darkened his white cuffs. Lord Blackthorn lay behind the library door, according to everyone. No one had entered since his scream split the evening. Mara knelt beside the lock and examined its tiny scratches. Someone had forced it recently, though not from this side. She pushed the door open, revealing an empty leather chair. Blood pooled underneath it, still reflecting the firelight in waves. On the desk, a note bore Mara’s name in ink. Behind her, the butler whispered that nobody knew her name.
created_at
"2026-10-27T10:30:27.378Z"
10/27/2026, 10:30:27 AM
model
"openai/gpt-6.1-terra-20261026"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
4224
moderation_latency
(null)
generation_time
8173
tokens_prompt
46
tokens_completion
463
native_tokens_prompt
41
native_tokens_completion
685
native_tokens_completion_images
0
native_tokens_reasoning
516
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
0.003466
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.22.1; linux; x64))"
http_referer
(null)
request_id
"req-1793097027-6yMwcZwhV53JGt58k1Ds"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1793097027-uL08hQvhUhaf6CsVaqCZ"
upstream_id
"resp_07a09dad0104955b016ae07d43734487d1a7cec93a91831f92"
provider_responses
0
endpoint_id
"2d2ad10f-098e-4bbf-aa95-11f705b2b9a2"
id
"resp_07a09dad0104955b016ae07d43734487d1a7cec93a91831f92"
is_byok
false
latency
420
model_permaslug
"openai/gpt-6.1-terra-20261026"
provider_name
"OpenAI"
status
200
total_cost
0.003466
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
13
wordCounts
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
10
8
10
9
10
10
10
11
10
12
10