Run: 2026-07-09-01KX413D7EG5SCDJG2CDRKKN01

Run Details

Duration:
4.1s
Cost:
$0.002383
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
29.24% 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 battered Blackthorn Manor as Inspector Vale arrived, summoned by a message that promised murder before midnight exactly. The butler admitted him silently, pale hands trembling beneath silver trays, while thunder erased the distant village church bells. In the drawing room, seven guests watched a fire consume letters, each wearing expressions carefully borrowed from innocence. Lady Blackthorn reclined beside the hearth, her emerald necklace missing, her throat bruised, and her smile disturbingly composed tonight. “Someone has taken my jewel,” she whispered, “and unless it returns, one of you will die before dawn.” A clock struck eleven, though every guest swore later that its hands had stopped precisely twenty minutes earlier.
created_at"2026-07-09T18:09:07.829Z" 7/9/2026, 6:09:07 PM
model"openai/gpt-5.6-terra-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1851
moderation_latency(null)
generation_time4013
tokens_prompt46
tokens_completion195
native_tokens_prompt41
native_tokens_completion152
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"
usage0.0023825
router(null)
provider_responses
0
endpoint_id"3cc89000-ae34-4dde-9c7d-5ce009c8af0b"
id"resp_0338a5e112b2c5e0016a4fe3c53ff8819586fac356d24c4ea4"
is_byokfalse
latency1545
model_permaslug"openai/gpt-5.6-terra-20260709"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783620547-RYSGSfJnHeYA5Kbnva85"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620547-Xn6I0jabzGRxglPqd8Sv"
upstream_id"resp_0338a5e112b2c5e0016a4fe3c53ff8819586fac356d24c4ea4"
total_cost0.0023825
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
29.24% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
018
119
218
319
418
518