Run: 2026-10-27-01M5YJ0DGKKZBCHF2HTF3395T0

Run Details

Duration:
10.5s
Cost:
$0.004361
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 fog arrived before dawn, swallowing the road to Blackthorn. Inside, the house smelled of lilies, smoke, and wet wool. Detective Mara Voss found the body beneath the grandfather clock. Lord Blackthorn lay facedown, one hand reaching toward the fireplace. A silver letter opener protruded neatly between his shoulder blades. The clock had stopped at precisely seventeen minutes past midnight. Outside the study, six guests waited beneath the flickering chandelier. Each claimed they had heard nothing during the night’s storm. Yet someone had locked the study door from the inside. Mara examined the windows, finding both latches fastened and undisturbed. Then she noticed soot scattered across the dead man’s collar. The fireplace was cold, but the ashes concealed something warm. She drew out a key, still warm against her glove. Its bow bore the initials of the house’s newest guest.
created_at"2026-10-27T11:30:25.439Z" 10/27/2026, 11:30:25 AM
model"openai/gpt-6.1-terra-20261026"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4707
moderation_latency(null)
generation_time10464
tokens_prompt46
tokens_completion499
native_tokens_prompt41
native_tokens_completion864
native_tokens_completion_images0
native_tokens_reasoning681
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"
usage0.004361
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.22.1; linux; x64))"
http_referer(null)
request_id"req-1793100625-uXMJxBgmH3mb6f463fqi"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1793100625-aFdNGKhIpldUApEtVJ6X"
upstream_id"resp_054cd32309bad674016ae08b51884c87d1a015c275148ac1bb"
provider_responses
0
endpoint_id"2d2ad10f-098e-4bbf-aa95-11f705b2b9a2"
id"resp_054cd32309bad674016ae08b51884c87d1a015c275148ac1bb"
is_byokfalse
latency473
model_permaslug"openai/gpt-6.1-terra-20261026"
provider_name"OpenAI"
status200
total_cost0.004361
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
sentences14
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110
1210
1310