Run: 2026-03-09-01KKABXJWNFPYK62M6HVWSMVXZ

Run Details

Duration:
9.5s
Cost:
$0.008008
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, silver candles trembled beside portraits with watchful, varnished eyes. Guests hushed when Evelyn Cross descended, wearing her widow's diamonds. She smiled once, thinly, then reached for the poisoned champagne. The glass slipped, shattered, and silence opened like a grave. Before anyone moved, the grandfather clock struck one accusing note. Detective Rowan Vale noticed mud staining the Persian runner nearby. Somebody had entered recently, and somebody here already knew why.
created_at"2026-03-09T22:36:39.711Z" 3/9/2026, 10:36:39 PM
model"openai/gpt-5.4-20260305"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency8969
moderation_latency(null)
generation_time9160
tokens_prompt46
tokens_completion404
native_tokens_prompt41
native_tokens_completion527
native_tokens_completion_images0
native_tokens_reasoning414
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"
usage0.0080075
router(null)
provider_responses
0
endpoint_id"9ff5625c-403f-4d7f-b895-58ac7295062c"
id"resp_03fbf5fcd5e5398b0169af4b77cc7881978461f3980966feae"
is_byokfalse
latency227
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-1773095799-IcZKFRHexf7UEyV8D8LS"
upstream_id"resp_03fbf5fcd5e5398b0169af4b77cc7881978461f3980966feae"
total_cost0.0080075
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