Run: 2026-02-20-01KHY9Z3G01994H7C7EFTK28ST

Run Details

Model:
ByteDance Seed 1.6 Flash
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
4.7s
Cost:
$0.000258
Provider:
Seed

Evaluation summary

Score Evaluator
Details Link
73.77% 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 first light of dawn spilled over the quiet town, waking a stray cat that sat on a wooden fence. Mabel, the town's elderly baker, hurried to her shop, carrying a basket of warm, fresh-baked bread and a small key. Opening the back door slowly, she gasped—cold blood stained the floor, and a man lay still, his eyes wide open.
created_at"2026-02-20T19:55:57.325Z" 2/20/2026, 7:55:57 PM
model"bytedance-seed/seed-1.6-flash-20250625"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency427
moderation_latency(null)
generation_time4459
tokens_prompt46
tokens_completion645
native_tokens_prompt119
native_tokens_completion829
native_tokens_completion_images(null)
native_tokens_reasoning750
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"
usage0.000257625
router(null)
provider_responses
0
endpoint_id"e01a1227-001b-44d4-a376-90850668fa84"
id"021771617357461085ce2a5b85bafc715e5d42a46d0455127d7ca"
is_byokfalse
latency289
model_permaslug"bytedance-seed/seed-1.6-flash-20250625"
provider_name"Seed"
status200
api_type"completions"
id"gen-1771617357-NQSHUIKmo6KkKQ9KLCaK"
upstream_id"021771617357461085ce2a5b85bafc715e5d42a46d0455127d7ca"
total_cost0.000257625
cache_discount(null)
upstream_inference_cost0
provider_name"Seed"

Evaluation details

Result Evaluator Details Meta Data
73.77% Matches word count n/a
neededCleanfalse
sentences3
wordCounts
020
121
221