Run: 2026-03-06-01KK1GJTG10YW9F94PSTEVREKF

Run Details

Model:
GPT-5.4
Duration:
3.7s
Cost:
$0.001783
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 battered Blackthorn Manor as mourners gathered beneath bruised skies. Lady Harrow's coffin waited, gleaming darkly beside wilting white lilies. Inside, clocks had stopped exactly when the widow supposedly died. Guests whispered condolences, but every glance carried calculation, dread, suspicion. A violin sobbed upstairs, though no musician had been invited. Detective Vale arrived late, rain dripping from his ash umbrella. He noticed mud across marble, leading inward from bolted doors. Then the coffin lid shifted softly, as someone breathed within.
created_at"2026-03-06T12:05:00.04Z" 3/6/2026, 12:05:00 PM
model"openai/gpt-5.4-20260305"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency409
moderation_latency(null)
generation_time3675
tokens_prompt46
tokens_completion145
native_tokens_prompt41
native_tokens_completion112
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"
usage0.0017825
router(null)
provider_responses
0
endpoint_id"9ff5625c-403f-4d7f-b895-58ac7295062c"
id"resp_001482299c3fcc820169aac2ec1d58819095c0d7765abd6ead"
is_byokfalse
latency166
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-1772798700-DUGpFOptwJEOx1DIxlvc"
upstream_id"resp_001482299c3fcc820169aac2ec1d58819095c0d7765abd6ead"
total_cost0.0017825
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

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