Run: 2026-07-25-01KYCRH44CWDPQ9W44S6J3SNJ1

Run Details

Duration:
16.2s
Cost:
$0.028125
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
94.44% 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 greenhouse glass. Inspector Hale removed her gloves. The body lay facedown there. Orchids bloomed around his head. Someone had arranged them carefully. That detail troubled her most. Murder rarely bothered with beauty. A teacup sat nearby, cracked. Two chairs faced each other. The victim expected a guest. Hale crouched beside the corpse. Lord Ashcombe's watch had stopped. Eleven forty, the glass shattered. Convenient, she thought, too convenient. Footsteps approached along the gravel. Sergeant Pike arrived, breathing hard. "The household is all present." "Nobody left after the dinner." "Then our killer waits inside." Hale rose and studied everything. Somewhere a clock struck one.
created_at"2026-07-25T13:48:11.796Z" 7/25/2026, 1:48:11 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4816
moderation_latency(null)
generation_time16071
tokens_prompt46
tokens_completion273
native_tokens_prompt60
native_tokens_completion1113
native_tokens_completion_images(null)
native_tokens_reasoning95
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"
usage0.028125
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNt2u4KgX1JiZZeowCcN"
is_byokfalse
latency2148
model_permaslug"anthropic/claude-opus-5-20260723"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1784987291-JmJfa8p0tpnFFnJvadru"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784987291-IRpPyQaw7tZEWu5ukMZh"
upstream_id"msg_011CdNt2u4KgX1JiZZeowCcN"
total_cost0.028125
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
94.44% Matches word count n/a
neededCleanfalse
sentences18
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
1620
175