Run: 2026-10-08-01M4DYBTSPT5EGEST141Q1V0PM

Run Details

Duration:
2m 32s
Cost:
$0.020494
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
The rain had been falling over Blackwood Manor since dusk. Nobody in the household had slept properly since the argument. The quarrel had concerned a will and a forged signature. At dawn, the housekeeper found the study door bolted shut. Detective Inspector Ada Penrose arrived at the house around eight. Ada had spent twenty years chasing clever liars and murderers. Stern ancestors in gilt frames watched her climb the stairs. Her sergeant, Gideon Hale, was pacing outside the study door. Ada stepped carefully past the splintered frame into the study. The body had not been moved from the room yet. Sir Edmund Ashworth lay slumped across his mahogany writing desk. A revolver lay on the carpet beneath his dangling hand. The mantel clock had stopped at a quarter past eleven. Two brandy glasses stood beside him, and one was spotless. "Looks like suicide to me, Inspector," Gideon said, sounding hopeful. Ada crouched beside the desk and studied the carpet closely. Wet footprints crossed the rug and stopped at the bookcase. A cold breeze breathed from somewhere behind those dusty shelves. Someone had come in from the garden during the storm. Sir Edmund had not set foot outdoors in two days. Somewhere in the house, someone was already lying to her.
created_at"2026-10-08T14:23:35.232Z" 10/8/2026, 2:23:35 PM
model"anthropic/claude-haiku-5.5-20261007"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency48793
moderation_latency(null)
generation_time152152
tokens_prompt46
tokens_completion5368
native_tokens_prompt62
native_tokens_completion40976
native_tokens_completion_images(null)
native_tokens_reasoning40525
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"
usage0.0204942
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791469415-vMbTq5k72DbjjRbkCmtu"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791469415-Nw1oF3RwrbkzoW4ONqhs"
upstream_id"msg_011CfpvQ5mMZ1ttDF5ZvxBSJ"
provider_responses
0
endpoint_id"b6cdf493-3a61-441f-a134-e7944fddb980"
id"msg_011CfpvQ5mMZ1ttDF5ZvxBSJ"
is_byokfalse
latency841
model_permaslug"anthropic/claude-haiku-5.5-20261007"
provider_name"Claude Platform on AWS"
status200
total_cost0.0204942
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
sentences21
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110
1210
1310
1410
1510
1610
1710
1810
1910
2010