Run: 2026-02-20-01KHY85WZMGM4AF4E4PEXNZFVN

Run Details

Model:
ByteDance Seed 1.6 Flash
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
4.7s
Cost:
$0.000218
Provider:
Seed

Evaluation summary

Score Evaluator
Details Link
94.82% 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
Dim light seeps slowly through two old cracked window panes. A woman sits hunched, staring at a spilled red drink. Her hands tremble; a silver fork lies near her tense knee. The clock chimes nine, casting shadows on a locked door. A creak echoes; a man's silhouette pauses in the hall.
created_at"2026-02-20T19:24:42.879Z" 2/20/2026, 7:24:42 PM
model"bytedance-seed/seed-1.6-flash-20250625"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency650
moderation_latency(null)
generation_time4596
tokens_prompt46
tokens_completion621
native_tokens_prompt119
native_tokens_completion696
native_tokens_completion_images(null)
native_tokens_reasoning629
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"
usage0.000217725
router(null)
provider_responses
0
endpoint_id"e01a1227-001b-44d4-a376-90850668fa84"
id"021771615483171e1f2c28e220bf76d8a56e2a46eaa08e9a499dd"
is_byokfalse
latency453
model_permaslug"bytedance-seed/seed-1.6-flash-20250625"
provider_name"Seed"
status200
api_type"completions"
id"gen-1771615482-l9K16FfBh0vUiXshnmqw"
upstream_id"021771615483171e1f2c28e220bf76d8a56e2a46eaa08e9a499dd"
total_cost0.000217725
cache_discount(null)
upstream_inference_cost0
provider_name"Seed"

Evaluation details

Result Evaluator Details Meta Data
94.82% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
010
110
211
310
410