Run: 2026-03-06-01KK1H20FVADW6A37QBGZ3T9D2

Run Details

Duration:
3.8s
Cost:
$0.001767
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 polished Blackthorn Manor's windows. Guests whispered beneath velvet chandeliers. A violin wept from shadows. Lady Wren smiled too brightly. Footsteps echoed along marble corridors. Then came a strangled scream. Glasses shattered across silver trays. The music stopped mid-measure instantly. Everyone turned toward the library. Lord Ashcombe lay beside embers. A pearl-handled letter opener protruded. His cufflinks glittered like accusations. No one admitted seeing anything. Yet everyone seemed suddenly guilty. Inspector Vale closed the doors.
created_at"2026-03-06T12:13:17.699Z" 3/6/2026, 12:13:17 PM
model"openai/gpt-5.4-20260305"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency450
moderation_latency(null)
generation_time3711
tokens_prompt46
tokens_completion149
native_tokens_prompt41
native_tokens_completion111
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"
usage0.0017675
router(null)
provider_responses
0
endpoint_id"9ff5625c-403f-4d7f-b895-58ac7295062c"
id"resp_097c87d8c94944d30169aac4ddc28481948bc13ff531ebc3c4"
is_byokfalse
latency151
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-1772799197-QXrhwBjOR3H0yh1VFq20"
upstream_id"resp_097c87d8c94944d30169aac4ddc28481948bc13ff531ebc3c4"
total_cost0.0017675
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences15
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145