Run: 2026-03-18-01KM09J4RAF63YFYRY718TYSF6

Run Details

Duration:
6.8s
Cost:
$0.000582
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 hissed on Graylock Manor. A body lay beneath glass. Inspector Ward found no footprints. The caretaker screamed at dawn. Candles burned despite wind outside. Marta inspected the victim's hands. Her glance snagged a key. Beside it, a ribbon fluttered. Ward asked who owned that. Everyone answered with shaking voices.
created_at"2026-03-18T10:58:45.144Z" 3/18/2026, 10:58:45 AM
model"openai/gpt-5.4-nano-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6657
moderation_latency(null)
generation_time6725
tokens_prompt46
tokens_completion381
native_tokens_prompt41
native_tokens_completion459
native_tokens_completion_images0
native_tokens_reasoning375
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"
usage0.00058195
router(null)
provider_responses
0
endpoint_id"0c835f2e-c18d-4e8c-b245-e1e3bd08b97f"
id"resp_0b145b3c2fb83f080169ba85653458819780ff24818bebb6bb"
is_byokfalse
latency183
model_permaslug"openai/gpt-5.4-nano-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-1773831525-ETce1mukgT0MJPD2IdWx"
upstream_id"resp_0b145b3c2fb83f080169ba85653458819780ff24818bebb6bb"
total_cost0.00058195
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
05
15
25
35
45
55
65
75
85
95