Run: 2026-10-08-01M4E0HDFAHGFE2X9DGFD2NPE8

Run Details

Duration:
8.8s
Cost:
$0.000464
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 fell on Blackwood Manor. Harold Finch arrived at dawn. The body lay upstairs, untouched. Lady Margaret had been poisoned. Nobody had heard anything unusual. Her husband wept softly nearby. Three guests watched from doorway. Finch knelt beside the teacup. Bitter almonds lingered in air. Someone in this house lied. The killer was still here.
created_at"2026-10-08T15:01:35.356Z" 10/8/2026, 3:01:35 PM
model"anthropic/claude-haiku-5.5-20261007"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2578
moderation_latency(null)
generation_time8788
tokens_prompt46
tokens_completion176
native_tokens_prompt62
native_tokens_completion915
native_tokens_completion_images(null)
native_tokens_reasoning769
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"
usage0.0004637
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791471695-lju6c04f1rA0GhNTxTx5"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791471695-SJxP5WZ7IwYpp83r9NXb"
upstream_id"msg_011CfpyJAQqY9FprJ3FzYueg"
provider_responses
0
endpoint_id"b6cdf493-3a61-441f-a134-e7944fddb980"
id"msg_011CfpyJAQqY9FprJ3FzYueg"
is_byokfalse
latency874
model_permaslug"anthropic/claude-haiku-5.5-20261007"
provider_name"Claude Platform on AWS"
status200
total_cost0.0004637
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
sentences11
wordCounts
05
15
25
35
45
55
65
75
85
95
105