Run: 2026-07-09-01KX412T2QBMXAP14XDQQPTPH5

Run Details

Duration:
4.3s
Cost:
$0.004645
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
93.44% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain polished the manor windows while Inspector Vale counted thirteen guests circling a dinner table set elaborately for fourteen places. At midnight, thunder silenced the orchestra, and every candle vanished except one trembling beside Lord Ashcombe’s suddenly empty chair. Then the grandfather clock chimed backward, revealing scarlet footprints leading from the locked dining room toward the snowbound rose garden. Nobody moved until Lady Ashcombe whispered that her husband had been dead upstairs since dusk, dressed for tomorrow’s funeral already. Inspector Vale lifted the abandoned glass, smelled bitter almonds, and noticed lipstick matching none of the women seated there tonight. Outside, beneath the black roses, something heavy struck the frozen earth three times, then began scratching upward with frantic purpose.
created_at"2026-07-09T18:08:48.221Z" 7/9/2026, 6:08:48 PM
model"openai/gpt-5.6-sol-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency700
moderation_latency(null)
generation_time4214
tokens_prompt46
tokens_completion217
native_tokens_prompt41
native_tokens_completion148
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)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
service_tier"default"
usage0.004645
router(null)
provider_responses
0
endpoint_id"a54c5de0-89bf-4ad7-a212-cf977eed918a"
id"resp_06b05277ecb2fee2016a4fe3b0480481909d457f7124acf388"
is_byokfalse
latency216
model_permaslug"openai/gpt-5.6-sol-20260709"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783620528-VvtUOfdvWP3t4mu1rVxr"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620528-9Q2Edy1PWyZivR9x91OX"
upstream_id"resp_06b05277ecb2fee2016a4fe3b0480481909d457f7124acf388"
total_cost0.004645
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
93.44% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
020
119
220
320
420
520