Run: 2026-02-20-01KHYAJHEE1EQRN3GG0MSM0SFA

Run Details

Model:
ByteDance Seed 1.6 Flash
Test:
N-Length Sentences
Scenario:
Write sentences with 5 words each
Duration:
3.0s
Cost:
$0.000120
Provider:
Seed

Evaluation summary

Score Evaluator
Details Link
91.15% 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
Moonlight spills on desks. A man slumps over papers. A knife glints near his hand. Footsteps pause at the door. Who struck this quiet blow?
created_at"2026-02-20T20:06:34.204Z" 2/20/2026, 8:06:34 PM
model"bytedance-seed/seed-1.6-flash-20250625"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency399
moderation_latency(null)
generation_time2682
tokens_prompt46
tokens_completion366
native_tokens_prompt118
native_tokens_completion369
native_tokens_completion_images(null)
native_tokens_reasoning331
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"
usage0.00011955
router(null)
provider_responses
0
endpoint_id"e01a1227-001b-44d4-a376-90850668fa84"
id"021771617994360aaaf13501739a5ff290af8d9343e27fc1aa9cb"
is_byokfalse
latency247
model_permaslug"bytedance-seed/seed-1.6-flash-20250625"
provider_name"Seed"
status200
api_type"completions"
id"gen-1771617994-MRnglA16tciCUIc8dfwT"
upstream_id"021771617994360aaaf13501739a5ff290af8d9343e27fc1aa9cb"
total_cost0.00011955
cache_discount(null)
upstream_inference_cost0
provider_name"Seed"

Evaluation details

Result Evaluator Details Meta Data
91.15% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
04
15
26
35
45