Run: 2026-09-29-01M3P2A4RSW0VES3YZ0875A096

Run Details

Duration:
19.0s
Cost:
$0.023434
Provider:
Claude Platform on AWS

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
Rain hammered the windows of Blackwood Manor that terrible night. Inspector Mara Quinn arrived just after midnight, soaked and annoyed. A constable led her through the hall toward the library. Lord Edmund Blackwood lay sprawled beside the fireplace, eyes staring. A shattered decanter lay nearby, whiskey staining the pale rug. "Nobody touched anything," the constable whispered, gripping his notebook tightly. Quinn glanced up; the mantel clock had stopped at eleven-forty. Every door and window was locked from the inside, somehow. Eight guests waited in the drawing room, and one lied. Quinn smiled grimly; someone in that house was a killer.
created_at"2026-09-29T07:50:48.01Z" 9/29/2026, 7:50:48 AM
model"anthropic/claude-sonnet-5.5-20260928"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4522
moderation_latency(null)
generation_time18782
tokens_prompt46
tokens_completion485
native_tokens_prompt62
native_tokens_completion2331
native_tokens_completion_images(null)
native_tokens_reasoning2093
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"end_turn"
service_tier"default"
usage0.023434
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1790668248-iZdDTUEw99J2cdt41qZA"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790668248-O2qqjaz8C53ZG7dw2IUr"
upstream_id"msg_011CfXNAcR9v4Nbga8tyRVK7"
provider_responses
0
endpoint_id"99aaad94-923b-4fc1-b763-271ed5486f7a"
id"msg_011CfXNAcR9v4Nbga8tyRVK7"
is_byokfalse
latency1356
model_permaslug"anthropic/claude-sonnet-5.5-20260928"
provider_name"Claude Platform on AWS"
status200
total_cost0.023434
cache_discount(null)
upstream_inference_cost0
provider_name"Claude Platform on AWS"
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
sentences10
wordCounts
010
110
210
310
410
510
610
710
810
910