Run: 2026-03-09-01KK9PTCX0HQHKWQ97RB79M5BZ

Run Details

Duration:
10.3s
Cost:
$0.009598
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 needled the manor windows as midnight swallowed Blackthorn Hall. Inside, candles trembled beside portraits whose eyes accused every guest. Evelyn Marsh heard a scream, then silence, sharp and unnatural. She followed the echo downstairs, clutching her father's silver lighter. The library door stood open, breathing smoke and ruined secrets. On the Persian rug lay Augustus Vale, bloodied, sightless, motionless. Pinned beneath his hand, a chess king glimmered like evidence. Somewhere above, a clock struck one, and someone quietly laughed.
created_at"2026-03-09T16:27:55.181Z" 3/9/2026, 4:27:55 PM
model"openai/gpt-5.4-20260305"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency9584
moderation_latency(null)
generation_time9593
tokens_prompt46
tokens_completion429
native_tokens_prompt41
native_tokens_completion633
native_tokens_completion_images0
native_tokens_reasoning516
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"
usage0.0095975
router(null)
provider_responses
0
endpoint_id"9ff5625c-403f-4d7f-b895-58ac7295062c"
id"resp_072b6af76d1630520169aef50b41d08197a6339f2214015946"
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-1773073675-d1Bvw671ueh9Zt1zjvTd"
upstream_id"resp_072b6af76d1630520169aef50b41d08197a6339f2214015946"
total_cost0.0095975
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