Run: 2026-03-06-01KK1GY8QV2G1ZKSSV1R06RFTD

Run Details

Duration:
6.1s
Cost:
$0.002188
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 Hall as mourners gathered beneath bruised skies. Candles trembled wildly, casting nervous halos across ancestral portraits tonight. At precisely midnight, the grandfather clock swallowed its thirteenth chime. Lady Wren descended silently, her veil glistening like fresh cobwebs. No one noticed the blood staining her left ivory glove. She raised a crystal glass, proposing remembrance, forgiveness, and reconciliation. Then the library doors slammed shut without any visible hand. Somewhere upstairs, a woman screamed once, sharply, then not again. The guests froze, listening as footsteps crossed the ceiling overhead. When the lights failed, someone laughed softly beside the corpse.
created_at"2026-03-06T12:11:15.074Z" 3/6/2026, 12:11:15 PM
model"openai/gpt-5.4-20260305"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency556
moderation_latency(null)
generation_time6074
tokens_prompt46
tokens_completion185
native_tokens_prompt41
native_tokens_completion139
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"
usage0.0021875
router(null)
provider_responses
0
endpoint_id"9ff5625c-403f-4d7f-b895-58ac7295062c"
id"resp_07f978d357c1d08b0169aac46321bc8197b8a7388182b0b7f1"
is_byokfalse
latency142
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-1772799075-iP8DPEJ2bngNOh9Bmmpy"
upstream_id"resp_07f978d357c1d08b0169aac46321bc8197b8a7388182b0b7f1"
total_cost0.0021875
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