Run: 2026-03-09-01KK9QHWBDFFHAAFG8TXP0X94M

Run Details

Duration:
2m 17s
Cost:
$0.010767
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
Rain stitched silver needles through Blackmere Hall before dawn arrived. Inside, grandfather clocks argued softly while portraits watched the corridors. Mara Finch unlocked the library and smelled oranges, smoke, fear. A fire guttered low, illuminating boots protruding beyond the desk. She stepped closer, hearing china tremble somewhere above her head. Lord Wren lay crumpled, one cuff soaked darkly, throat open. On the carpet, chess pieces formed a broken white circle. The window stood unlatched, yet rain touched nothing indoors whatsoever. Then the telephone rang once, and everyone downstairs began lying.
created_at"2026-03-09T16:42:46.443Z" 3/9/2026, 4:42:46 PM
model"openai/gpt-5.4-20260305"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency14435
moderation_latency(null)
generation_time14573
tokens_prompt46
tokens_completion422
native_tokens_prompt41
native_tokens_completion711
native_tokens_completion_images0
native_tokens_reasoning585
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.0107675
router(null)
provider_responses
0
endpoint_id"9ff5625c-403f-4d7f-b895-58ac7295062c"
id"resp_0e220d03b4eac7ae0169aef88685cc8196a9229ca731c58707"
is_byokfalse
latency221
model_permaslug"openai/gpt-5.4-20260305"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773074566-eP47YZtPNWEM857mPoOg"
upstream_id"resp_0e220d03b4eac7ae0169aef88685cc8196a9229ca731c58707"
total_cost0.0107675
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences9
wordCounts
010
110
210
310
410
510
610
710
810