Run: 2026-03-06-01KK1H3RH1C7KZWSFP8E358NYA

Run Details

Duration:
5.3s
Cost:
$0.002142
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 polished Blackthorn Manor while mourners gathered beneath lowering clouds. Inside, grandfather clocks counted silences between whispers and clinking glasses. Lady Vale welcomed everyone warmly, though her smile never reached. At dinner, candles trembled whenever the locked library door rattled. Professor Wren joked about ghosts, then spilled wine across maps. No one laughed when the butler announced midnight had arrived. A scream sliced upward from the cellar, sharp as winter. They found Jasper Crowe crumpled beside barrels, throat neatly opened. In his stiffening hand rested Lady Vale's missing emerald brooch. Above them, the clocks resumed ticking, patient as hidden witnesses.
created_at"2026-03-06T12:14:15.081Z" 3/6/2026, 12:14:15 PM
model"openai/gpt-5.4-20260305"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency505
moderation_latency(null)
generation_time5231
tokens_prompt46
tokens_completion180
native_tokens_prompt41
native_tokens_completion136
native_tokens_completion_images0
native_tokens_reasoning0
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"
usage0.0021425
router(null)
provider_responses
0
endpoint_id"9ff5625c-403f-4d7f-b895-58ac7295062c"
id"resp_0e0e7421bf7735900169aac5172750819585fca0b16721c874"
is_byokfalse
latency186
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-1772799255-SLhguTyFWHukD0LvgkK0"
upstream_id"resp_0e0e7421bf7735900169aac5172750819585fca0b16721c874"
total_cost0.0021425
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
210
310
410
510
610
710
810
910