Run: 2026-10-08-01M4DA86XHRKX34M1ZNH7PX2EX

Run Details

Duration:
8.0s
Cost:
$0.000684
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. Inspector Hale arrived at midnight. Lord Ashworth lay dead upstairs. His study door was locked. Nobody saw him after supper. Everyone gathered in the parlor. Faces showed fear, not grief. Hale noticed one thing immediately. A single glass sat empty. Its rim held red lipstick. Someone in the house lied. The hunt began at dawn.
created_at"2026-10-08T08:32:05.047Z" 10/8/2026, 8:32:05 AM
model"anthropic/claude-haiku-5.5-20261007"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2411
moderation_latency(null)
generation_time7924
tokens_prompt46
tokens_completion285
native_tokens_prompt62
native_tokens_completion1355
native_tokens_completion_images(null)
native_tokens_reasoning1200
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"
usage0.0006837
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791448325-UtfAVdAwZvMB0grBy00x"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791448325-U6y3f7qKqB43jHLYdFet"
upstream_id"msg_011CfpTbSF4j4ieHUJNRsBwp"
provider_responses
0
endpoint_id"b6cdf493-3a61-441f-a134-e7944fddb980"
id"msg_011CfpTbSF4j4ieHUJNRsBwp"
is_byokfalse
latency850
model_permaslug"anthropic/claude-haiku-5.5-20261007"
provider_name"Claude Platform on AWS"
status200
total_cost0.0006837
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