Run: 2026-07-09-01KX414854S3H5NHRETHN4RB37

Run Details

Duration:
4.6s
Cost:
$0.004015
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
65.85% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain polished the windows as midnight silenced Blackthorn Manor. Detective Mara Voss arrived before servants barred the doors. Inside, Lord Blackthorn waited beneath a shattered chandelier, dead. His clenched hand concealed a crimson feather and key. Nine guests watched Mara, each wearing identical crimson masks. “Count everyone,” Mara ordered, studying their spotless evening shoes. The butler counted twice, then whispered, “We have ten.” From upstairs, a woman screamed, then abruptly began laughing. Mara checked the corpse and found warm wax beneath. “Lock every window,” she said. “Our murderer has vanished.”
created_at"2026-07-09T18:09:35.418Z" 7/9/2026, 6:09:35 PM
model"openai/gpt-5.6-sol-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency650
moderation_latency(null)
generation_time4488
tokens_prompt46
tokens_completion176
native_tokens_prompt41
native_tokens_completion127
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"
usage0.004015
router(null)
provider_responses
0
endpoint_id"a54c5de0-89bf-4ad7-a212-cf977eed918a"
id"resp_0328135f5b9ee11d016a4fe3e007fc8195bd51417c87e5883b"
is_byokfalse
latency338
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-1783620575-vPIWs4kWLwLALpeMVJHE"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620575-R1v489oHTqvEJB5tW0BH"
upstream_id"resp_0328135f5b9ee11d016a4fe3e007fc8195bd51417c87e5883b"
total_cost0.004015
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
65.85% Matches word count n/a
neededCleanfalse
sentences9
wordCounts
09
19
29
39
49
518
69
79
89