Run: 2026-10-05-01M46BHHS4WB0BPJP58PAYAZFW

Run Details

Duration:
20.6s
Cost:
$0.006332
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 storm arrived before midnight, carrying secrets across Blackwater Bay. Inside Harrow House, thirteen guests watched their hostess extinguish candles. Lady Harrow smiled, though her trembling hands betrayed unfamiliar fear. “Before we dine, someone must confess what happened last winter.” Nobody answered, but the grandfather clock abruptly stopped its ticking. Then darkness swallowed the room, and something heavy struck marble. When lightning illuminated the windows, Lady Harrow lay unnaturally still. A silver letter opener protruded neatly beneath her pearl necklace. Detective Rowan noticed the blood before anyone began to scream. It pooled around her fingers, spelling one impossible, familiar name. His own, written exactly as his mother once wrote it. She had been dead for thirty years, buried without hands.
created_at"2026-10-05T15:39:58.636Z" 10/5/2026, 3:39:58 PM
model"openai/gpt-6.1-sol-20260929"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency18983
moderation_latency(null)
generation_time20584
tokens_prompt46
tokens_completion216
native_tokens_prompt41
native_tokens_completion625
native_tokens_completion_images0
native_tokens_reasoning466
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"
usage0.006332
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791214798-p3VPcjeZ6VL2GPZeqNUL"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791214798-17cqFHUGw27BlTf3mLhD"
upstream_id"resp_0643731ba027ba4d016ac3c4cec04887d1a3322696958fb94a"
provider_responses
0
endpoint_id"dfb9d5c3-63f9-4263-8b78-4fa97dcb3d5e"
id"resp_0643731ba027ba4d016ac3c4cec04887d1a3322696958fb94a"
is_byokfalse
latency368
model_permaslug"openai/gpt-6.1-sol-20260929"
provider_name"OpenAI"
status200
total_cost0.006332
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