Run: 2025-11-18-01KACP363V631S66Z3TP413SCS

Run Details

Model:: Gemini 2.5 Flash
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 1.2s
Cost:: $0.000249
Provider:: Google AI Studio

Evaluation summary

Score	Evaluator	Details Link
27.19%	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

Rain lashed against the leaded parlor window glass.  Silas Thornton slumped, dead, in his favorite chair.  A silver letter opener protruded from his chest.  Lady Finch screamed, clutching at her silken throat.  Inspector Davies entered, surveying the crowded, quiet room.  He stroked his mustache, observing the bloodied scene.  "Nobody leaves," he declared, his booming voice echoing.  "This parlor holds a dangerous, cunning murderer."

Evaluation details

Result

Evaluator

Details

Meta Data

27.19%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	8
1	8
2	8
3	8
4	8
5	8
6	8
7	7

created_at	"2025-11-18T23:51:42.852154+00:00" 11/18/2025, 11:51:42 PM
model	"google/gemini-2.5-flash"
app_id	182717
external_user	(null)
streamed	true
cancelled	false
latency	354
moderation_latency	(null)
generation_time	1035
tokens_prompt	42
tokens_completion	102
native_tokens_prompt	38
native_tokens_completion	95
native_tokens_completion_images	0
native_tokens_reasoning	0
native_tokens_cached	0
num_media_prompt	(null)
num_input_audio_prompt	(null)
num_media_completion	0
num_search_results	(null)
origin	"https://ncbench.com/"
is_byok	false
finish_reason	"stop"
native_finish_reason	"STOP"
usage	0.0002489
api_type	"completions"
id	"gen-1763509901-51bKfF0LhBc89NhxfhUh"
upstream_id	(null)
total_cost	0.0002489
cache_discount	(null)
upstream_inference_cost	0
provider_name	"Google AI Studio"