Run: 2026-09-23-01M37HNY2MRRCJ4RP6AGBRV6D1

Run Details

Duration:
19.1s
Cost:
$0.011872
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, the church bells rang thirteen times, and Detective Mara Voss found the mayor dead beneath their silent tower. His hands were folded over a sealed envelope, while fresh snow around his body bore no footprints except her own. Mara had arrived by carriage, yet the tracks behind her vanished abruptly at the gate, as though erased by someone. Inside the envelope, a single photograph showed Mara standing beside the mayor, holding a knife she had never seen before. A clock struck one from the empty bell tower, although its mechanism had been dismantled after last winter's devastating fire. Then a voice rose from behind the locked church doors, asking Mara why she had returned to finish the job. She recognized the voice immediately, though its owner had been buried three days earlier, with Mara watching from the graveside. Above her, the bells began again, and something inside the mayor's coat answered each toll with a muffled wet knock.
created_at"2026-09-23T16:30:46.364Z" 9/23/2026, 4:30:46 PM
model"openai/gpt-6-sol-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5929
moderation_latency(null)
generation_time19061
tokens_prompt46
tokens_completion662
native_tokens_prompt41
native_tokens_completion1179
native_tokens_completion_images0
native_tokens_reasoning985
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"
usage0.011872
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790181046-PAQ372sxk23U4yUIdhq4"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790181046-6OWARH5lHpZWMcZIDyg8"
upstream_id"resp_08a612e2925561b0016ab3feb6787887d1a9a5f1f9361ba51f"
provider_responses
0
endpoint_id"1cfc7d9d-4404-4b8e-9ee4-58ae45c9dcd4"
id"resp_08a612e2925561b0016ab3feb6787887d1a9a5f1f9361ba51f"
is_byokfalse
latency1423
model_permaslug"openai/gpt-6-sol-20260922"
provider_name"OpenAI"
status200
total_cost0.011872
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
sentences8
wordCounts
020
120
220
320
420
520
620
720