Run: 2026-09-23-01M36R050DJHTY315BS5CN0H5V

Run Details

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

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_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3771
moderation_latency(null)
generation_time15755
tokens_prompt46
tokens_completion621
native_tokens_prompt41
native_tokens_completion1606
native_tokens_completion_images0
native_tokens_reasoning1490
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
service_tier"default"
usage0.0008071
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_byokfalse
latency699
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.0008071
cache_discount(null)
upstream_inference_cost0
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
neededCleanfalse
sentences8
wordCounts
010
110
210
310
410
510
610
710