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Run: 2026-04-24-01KQ04471BPH94X594YB6T8P9G
Run Details
Model:
GPT-OSS 120B
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
2.3s
Cost:
$0.000492
Provider:
Amazon Bedrock
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 20 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
Fog clung to the narrow cobblestones as the clock struck midnight, ushering ominous whispers through the deserted town of silence. Detective Marlowe arrived, trench coat dripping, eyes scanning shadows, unaware that a lifeless body awaited beneath the ancient lamppost there. A crimson scarf fluttered from the victim’s hand, glinting eerily, hinting at secrets nobody dared to reveal in the dark. Marlowe knelt, inhaling coppery perfume, his mind racing through past cases, searching for the elusive, poisonous motive that lingered still. Suddenly, distant church bells tolled, echoing grief, as a cold wind extinguished every flickering candle inside the manor of silence.
created_at
"2026-04-24T16:10:51.318Z"
4/24/2026, 4:10:51 PM
model
"openai/gpt-oss-120b"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
2156
moderation_latency
(null)
generation_time
2271
tokens_prompt
46
tokens_completion
809
native_tokens_prompt
102
native_tokens_completion
794
native_tokens_completion_images
(null)
native_tokens_reasoning
639
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"end_turn"
usage
0.0004917
router
(null)
provider_responses
0
endpoint_id
"b3f80c05-e31a-44f6-b63f-414467b87553"
id
"f94a2013-777d-4a93-b908-45003686fdc8"
is_byok
false
latency
291
model_permaslug
"openai/gpt-oss-120b"
provider_name
"Amazon Bedrock"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer
(null)
request_id
"req-1777047051-znzswuIrrJii1ZCcaJKt"
session_id
(null)
api_type
"completions"
id
"gen-1777047051-rTpLTwZl2TzisVxCaYy2"
upstream_id
"f94a2013-777d-4a93-b908-45003686fdc8"
total_cost
0.0004917
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
response_cache_source_id
(null)
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Matches word count
n/a
neededClean
false
sentences
5
wordCounts
0
20
1
20
2
20
3
20
4
20