Run: 2026-07-09-01KX41E9XY4AMAK76BRRS5FK4Z

Run Details

Duration:
29.9s
Cost:
$0.043645
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 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
At midnight, Inspector Vale arrived at Blackthorn Manor, where thunder rattled windows and every clock displayed thirteen impossible minutes precisely. The butler waited beside a locked library door, clutching a silver tray stained with one perfect drop of blood, trembling. Inside, Lord Ashcombe sat upright at his desk, dead, while a fresh candle burned beneath the dripping chandelier without flickering. No weapon lay nearby, yet his right hand pointed accusingly toward a portrait that had been slashed across its eyes. Seven guests crowded the corridor, each claiming ignorance, although muddy footprints connected their rooms to the library terrace directly outside. Vale examined the corpse and found, tucked beneath its tongue, a tiny key engraved with tomorrow’s date and strange initials. Before anyone could speak, the telephone rang once, and a child’s voice whispered, “The second murder has already happened, Inspector.” Then the lights failed, and somewhere above them, a woman began laughing as a heavy body struck the floor hard.
created_at"2026-07-09T18:15:04.905Z" 7/9/2026, 6:15:04 PM
model"openai/gpt-5.6-sol-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency26960
moderation_latency(null)
generation_time29793
tokens_prompt46
tokens_completion277
native_tokens_prompt41
native_tokens_completion1448
native_tokens_completion_images0
native_tokens_reasoning1245
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"
usage0.043645
router(null)
provider_responses
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endpoint_id"a54c5de0-89bf-4ad7-a212-cf977eed918a"
id"resp_04c93637ccc24b07016a4fe5291c3481969f0a6667dea7c864"
is_byokfalse
latency242
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-1783620904-4mBoNE8aO7VR8GQx4Ee3"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620904-ZNpv8jQTb6F0CdQrWMLn"
upstream_id"resp_04c93637ccc24b07016a4fe5291c3481969f0a6667dea7c864"
total_cost0.043645
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
020
120
220
320
420
520
620
720