Run: 2026-10-08-01M4DA03XH4AB1Z3YGX3BWNMSH

Run Details

Duration:
6.4s
Cost:
$0.000757
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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain hammered the manor windows. Detective Eli Vance stood alone. Nobody had touched the body. Lord Harrington lay face down. Silver blade pierced his spine. Three guests had been upstairs. Each one swore total innocence. Eli noticed the muddy prints. They led toward the library. Someone had taken the key. Sergeant Mae Porter frowned slightly. Now the real investigation began.
created_at"2026-10-08T08:27:39.834Z" 10/8/2026, 8:27:39 AM
model"anthropic/claude-haiku-5.5-20261007"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6205
moderation_latency(null)
generation_time6370
tokens_prompt46
tokens_completion98
native_tokens_prompt62
native_tokens_completion1501
native_tokens_completion_images(null)
native_tokens_reasoning1351
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"
usage0.0007567
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791448059-zMSWhL1osMaDqnmGiRQY"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791448059-0OnTLi3qTahe6VKIWdTw"
upstream_id"msg_011CfpTFsouKDUVD3E7jB6Pc"
provider_responses
0
endpoint_id"b6cdf493-3a61-441f-a134-e7944fddb980"
id"msg_011CfpTFsouKDUVD3E7jB6Pc"
is_byokfalse
latency706
model_permaslug"anthropic/claude-haiku-5.5-20261007"
provider_name"Claude Platform on AWS"
status200
total_cost0.0007567
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
sentences12
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115