Run: 2026-09-03-01M1K4REEZE4PN08E144DA511A

Run Details

Model:
Muse Spark 1.3 (Reasoning, Medium)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
16.9s
Cost:
$0.010061
Provider:
Meta

Evaluation summary

Score Evaluator
Details Link
100.00% 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 rain hammered downtown Seattle relentlessly as Detective Mara Quinn arrived at the deserted Blackwood Theater around cold dark midnight. Inside, crimson curtains swayed gently above the silent stage where famous actor Julian Cross lay motionless beneath harsh bright spotlights. A single golden dagger protruded from his chest, glinting cruelly while his terrified understudy sobbed quietly near the orchestra pit. Quinn slipped on latex gloves, crouched beside the body, and noticed a torn ticket stub clutched tightly within his fist. The midnight audience had vanished completely, leaving only echoing footsteps, whispered rumors, and a lingering strong scent of bitter almonds.
created_at"2026-09-03T08:04:26.725Z" 9/3/2026, 8:04:26 AM
model"meta/muse-spark-1.3-20260902"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3768
moderation_latency(null)
generation_time16838
tokens_prompt46
tokens_completion199
native_tokens_prompt42
native_tokens_completion2355
native_tokens_completion_images0
native_tokens_reasoning2189
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
service_tier"auto"
usage0.01006125
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788422666-u75LFX3ceXBToSMQcMWo"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788422666-wq07Y7q8QeZzE8XVJxkb"
upstream_id"resp_6a992a0b74860ae9dfa84156"
provider_responses
0
endpoint_id"cf4f1b4e-1719-4b65-9111-7dd7635e5a2f"
id"resp_6a992a0b74860ae9dfa84156"
is_byokfalse
latency420
model_permaslug"meta/muse-spark-1.3-20260902"
provider_name"Meta"
status200
total_cost0.01006125
cache_discount(null)
upstream_inference_cost0
provider_name"Meta"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
220
320
420