Run: 2026-03-18-01KM0AF57TNDN6FWYVGT0V73TZ

Run Details

Duration:
2.6s
Cost:
$0.001826
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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain stitched the windows shut. Detective Mara entered Blackthorn Manor. Candles trembled beside a corpse. The butler stared, pale, silent. A note pinned his lapel. It read, "Find the liar." Mara touched the cold brass. Somewhere, a clock stopped ticking.
created_at"2026-03-18T11:14:35.915Z" 3/18/2026, 11:14:35 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2432
moderation_latency(null)
generation_time2518
tokens_prompt46
tokens_completion73
native_tokens_prompt41
native_tokens_completion399
native_tokens_completion_images0
native_tokens_reasoning325
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"
usage0.00182625
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_05395ffb588d39280169ba891bf8b48193820bd902906aef2f"
is_byokfalse
latency173
model_permaslug"openai/gpt-5.4-mini-20260317"
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-1773832475-vQ4Nz96rbVFwEM5HuhHE"
upstream_id"resp_05395ffb588d39280169ba891bf8b48193820bd902906aef2f"
total_cost0.00182625
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
05
15
25
35
45
55
65
75