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Run: 2026-09-23-01M36R86JVHBTV2T768B7274SP
Run Details
Model:
GPT-6 Luna (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
11.8s
Cost:
$0.000548
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 clocks inside Blackthorn Manor stopped together silently. Then every window brightened, though no lamp had been lit. Inspector Vale found the front door standing wide open, unlocked. Inside, Lord Ashcombe lay beneath the shattered chandelier, smiling faintly. A silver key rested carefully upon his still, bloodied tongue. No footprints crossed the dust, except Vale’s own muddy tracks. Behind him, someone softly applauded from the darkened staircase above. Vale turned, but only his reflection faced him there alone. The dead man’s eyes followed him across the room silently. Then the clocks began ticking backward, one by one again.
created_at
"2026-09-23T09:06:21.928Z"
9/23/2026, 9:06:21 AM
model
"openai/gpt-6-luna-20260922"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
10708
moderation_latency
(null)
generation_time
11789
tokens_prompt
46
tokens_completion
168
native_tokens_prompt
41
native_tokens_completion
1088
native_tokens_completion_images
0
native_tokens_reasoning
953
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
0.0005481
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1790154381-6bbWHFhhxpaj68aSaf4G"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790154381-hiPz9XZO0dJRhAyzdXpX"
upstream_id
"resp_039fc2965b5ed279016ab3968e096487d1ae3b827d9d9f71d7"
provider_responses
0
endpoint_id
"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id
"resp_039fc2965b5ed279016ab3968e096487d1ae3b827d9d9f71d7"
is_byok
false
latency
1320
model_permaslug
"openai/gpt-6-luna-20260922"
provider_name
"OpenAI"
status
200
total_cost
0.0005481
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
10
wordCounts
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
10
8
10
9
10