Run: 2026-02-20-01KHY8QJ5TR1P786Z94JBVS9Q1

Run Details

Model:
ByteDance Seed 1.6
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
35.2s
Cost:
$0.003133
Provider:
Seed

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

AI
The dimly lit library’s farthest corner harbors a slumped old man with a crimson note tacked to his silk vest. A broken ivory quill drips faded blue ink onto the crumpled paper sliding from his limp right hand beneath books. A frayed woolen scarf with a missing tassel tangles around his ankle near a cracked window letting in cold breezes.
created_at"2026-02-20T19:34:21.637Z" 2/20/2026, 7:34:21 PM
model"bytedance-seed/seed-1.6-20250625"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency930
moderation_latency(null)
generation_time35122
tokens_prompt46
tokens_completion936
native_tokens_prompt117
native_tokens_completion1552
native_tokens_completion_images(null)
native_tokens_reasoning1472
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.00313325
router(null)
provider_responses
0
endpoint_id"d85c3862-4e0d-4f8d-955b-babc62f98124"
id"021771616062157085ce2a5b85bafc715e5d42a46d04551f457b5"
is_byokfalse
latency930
model_permaslug"bytedance-seed/seed-1.6-20250625"
provider_name"Seed"
status200
api_type"completions"
id"gen-1771616061-mNftOsPzC0t4fJGdyoYS"
upstream_id"021771616062157085ce2a5b85bafc715e5d42a46d04551f457b5"
total_cost0.00313325
cache_discount(null)
upstream_inference_cost0
provider_name"Seed"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences3
wordCounts
020
120
220