Run: 2026-10-27-01M5YJ4PR9EA3VCHYR04ARM4MC

Run Details

Duration:
7.9s
Cost:
$0.003081
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The first snow fell as Inspector Vale reached Blackthorn Hall. Inside, the clocks had stopped at precisely eleven last night. Nobody could explain why, although everyone offered an elaborate theory. Lady Blackthorn lay beneath the chandelier, her white gloves immaculate. A narrow crimson ribbon had been tied around her throat. Her husband insisted she had retired before the guests departed. The butler claimed he had heard her singing after midnight. Vale noticed fresh snow melting beside the locked drawing room. One wet footprint pointed inward, another pointed toward the stairs. Neither footprint matched the polished shoes of anyone gathered there. Then the chandelier trembled, though no one had touched it. Above them, behind the ceiling, someone began to laugh softly.
created_at"2026-10-27T11:32:45.976Z" 10/27/2026, 11:32:45 AM
model"openai/gpt-6.1-terra-20261026"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4251
moderation_latency(null)
generation_time7898
tokens_prompt46
tokens_completion498
native_tokens_prompt41
native_tokens_completion608
native_tokens_completion_images0
native_tokens_reasoning459
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"
usage0.003081
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.22.1; linux; x64))"
http_referer(null)
request_id"req-1793100765-6oUqja64LvbbnEcz2lDq"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1793100765-aq9mGBu1p9ZyNEG02U3r"
upstream_id"resp_083349cfa9c08927016ae08bde0f3487d18c911359f49c939a"
provider_responses
0
endpoint_id"2d2ad10f-098e-4bbf-aa95-11f705b2b9a2"
id"resp_083349cfa9c08927016ae08bde0f3487d18c911359f49c939a"
is_byokfalse
latency476
model_permaslug"openai/gpt-6.1-terra-20261026"
provider_name"OpenAI"
status200
total_cost0.003081
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences12
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110