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Run: 2026-09-23-01M36R050DJHTY315BS5CN0H5V
Run Details
Model:
GPT-6 Luna (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
16.1s
Cost:
$0.000807
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
At midnight, the manor’s clocks stopped, though nobody touched them. A maid found Ashcombe beneath his bride’s portrait, apparently dead. Inspector Vale arrived carrying rain, a notebook, and quiet suspicion. Blood soaked the carpet, yet both his hands were spotless. Mrs. Wren swore he had died before the final toast. Then Vale noticed one untouched glass beside the open window. Outside, fresh footprints approached the house, then disappeared beneath rain. Vale smiled; the killer had returned to witness the discovery.
created_at
"2026-09-23T09:01:58.379Z"
9/23/2026, 9:01:58 AM
model
"openai/gpt-6-luna-20260922"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
3771
moderation_latency
(null)
generation_time
15755
tokens_prompt
46
tokens_completion
621
native_tokens_prompt
41
native_tokens_completion
1606
native_tokens_completion_images
0
native_tokens_reasoning
1490
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
0.0008071
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1790154118-7NeU8xWM5JRaZbh1iFUG"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790154118-cr4KCtJNSWzgwYHtHLFk"
upstream_id
"resp_05fbc29f488ed1ec016ab395868e7487d193e090b34762a407"
provider_responses
0
endpoint_id
"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id
"resp_05fbc29f488ed1ec016ab395868e7487d193e090b34762a407"
is_byok
false
latency
699
model_permaslug
"openai/gpt-6-luna-20260922"
provider_name
"OpenAI"
status
200
total_cost
0.0008071
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
10
1
10
2
10
3
10
4
10
5
10
6
10
7
10