Run: 2026-02-20-01KHY7XVSQM3NGGPCW8Z20PZ2P

Run Details

Model:
ByteDance Seed 1.6 Flash
Test:
N-Length Sentences
Scenario:
Write sentences with 5 words each
Duration:
5.2s
Cost:
$0.000173
Provider:
Seed

Evaluation summary

Score Evaluator
Details Link
71.52% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Morning light seeped through curtains. Eli found a body on the couch. A knife jutted from her back. Her eyes stared at the ceiling. Footsteps creaked down the hall.
created_at"2026-02-20T19:20:19.523Z" 2/20/2026, 7:20:19 PM
model"bytedance-seed/seed-1.6-flash-20250625"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency820
moderation_latency(null)
generation_time5039
tokens_prompt46
tokens_completion487
native_tokens_prompt118
native_tokens_completion548
native_tokens_completion_images(null)
native_tokens_reasoning503
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"
usage0.00017325
router(null)
provider_responses
0
endpoint_id"e01a1227-001b-44d4-a376-90850668fa84"
id"021771615219952718115c1869987166c12ff7f50db9b4e234a6c"
is_byokfalse
latency579
model_permaslug"bytedance-seed/seed-1.6-flash-20250625"
provider_name"Seed"
status200
api_type"completions"
id"gen-1771615219-jnELRgOg2SEX5eOKLcCI"
upstream_id"021771615219952718115c1869987166c12ff7f50db9b4e234a6c"
total_cost0.00017325
cache_discount(null)
upstream_inference_cost0
provider_name"Seed"

Evaluation details

Result Evaluator Details Meta Data
71.52% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
05
17
26
36
45