Run: 2026-02-20-01KHY97YPKA263053RX0AHGA6E

Run Details

Model:
ByteDance Seed 1.6 Flash
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
9.5s
Cost:
$0.000550
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
A single lamp dimly glowed, casting shadows on the desk. The old study held dim light, dust, and a corpse. A broken glass lay near a spilled, half-empty wine goblet. Detective Marlow leaned in, eyes fixed on the broken glass. A creak from the attic made Marlow turn, gun ready.
created_at"2026-02-20T19:43:18.751Z" 2/20/2026, 7:43:18 PM
model"bytedance-seed/seed-1.6-flash-20250625"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency484
moderation_latency(null)
generation_time9339
tokens_prompt46
tokens_completion1270
native_tokens_prompt119
native_tokens_completion1805
native_tokens_completion_images(null)
native_tokens_reasoning1732
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"
usage0.000550425
router(null)
provider_responses
0
endpoint_id"e01a1227-001b-44d4-a376-90850668fa84"
id"02177161659889065da4203214fbe81b3e8151fb2922fb1a36c4f"
is_byokfalse
latency363
model_permaslug"bytedance-seed/seed-1.6-flash-20250625"
provider_name"Seed"
status200
api_type"completions"
id"gen-1771616598-0eZfEmMd8SyyloEjf3qh"
upstream_id"02177161659889065da4203214fbe81b3e8151fb2922fb1a36c4f"
total_cost0.000550425
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