Run: 2026-03-06-01KK1GJ8DTSAQWBWPG97VR6D43

Run Details

Model:
GPT-5.4
Duration:
4.3s
Cost:
$0.001888
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
40.25% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain combed the windows of Blackthorn Hall as guests gathered below, unaware that midnight would crown one among them dead. At the head of the table, Lady Vale smiled thinly, while silver flickered beside crystal and secrets breathed. No one noticed the missing portrait, nor the muddy footprints fading upstairs, nor the clock stopping three minutes early. When the butler announced supper, thunder answered first, and every candle guttered low, as though the house inhaled. Then a scream split the corridor above, sharp enough to still every hand, and dinner began with murder.
created_at"2026-03-06T12:04:41.538Z" 3/6/2026, 12:04:41 PM
model"openai/gpt-5.4-20260305"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency404
moderation_latency(null)
generation_time4194
tokens_prompt46
tokens_completion148
native_tokens_prompt41
native_tokens_completion119
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"
usage0.0018875
router(null)
provider_responses
0
endpoint_id"9ff5625c-403f-4d7f-b895-58ac7295062c"
id"resp_0d09ff1b74fdf3d30169aac2d99a408194b2a1631253299d16"
is_byokfalse
latency144
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-1772798681-v9pEAznIB9au8KosDt5O"
upstream_id"resp_0d09ff1b74fdf3d30169aac2d99a408194b2a1631253299d16"
total_cost0.0018875
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
40.25% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
118
219
318
418