Run: 2026-03-18-01KM0AABGNRB76V28JQXD0BF0Z

Run Details

Duration:
1.0s
Cost:
$0.000436
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
97.79% 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
Fog swallowed Blackwood Manor tonight. Candles trembled behind curtained windows. Detective Mara Vale approached silently. A scream had already faded. On marble steps lay blood. Above, a clock struck twelve. No one answered her knocking. Inside, whispers scratched the hall. Mara found a body waiting. Its hand clutched a silver key.
created_at"2026-03-18T11:11:58.498Z" 3/18/2026, 11:11:58 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency500
moderation_latency(null)
generation_time941
tokens_prompt46
tokens_completion95
native_tokens_prompt41
native_tokens_completion90
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"
usage0.00043575
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_05ddcbdf7d2f8c000169ba887e96b88194b6ed6a8481808a43"
is_byokfalse
latency264
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-1773832318-WvTIkWuTp7njiaaYneKJ"
upstream_id"resp_05ddcbdf7d2f8c000169ba887e96b88194b6ed6a8481808a43"
total_cost0.00043575
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
97.79% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
05
15
25
35
45
55
65
75
85
96