Run: 2026-02-20-01KHY9EQWSTAD51QQAMS3RPFE0

Run Details

Model:
Grok 4 Fast
Test:
Voice/dialogue sheets
Scenario:
Simple (1-shot)
Duration:
2.0s
Cost:
$0.000221
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
Fail Matches Regex (details)

Model input

System
You are an editor for novels. Whenever given text, you will extract the contained dialogue as a voice sheet in the following format: Speaker: "Dialogue"
User/Human
Sarah leaned back in her chair, her eyes sparkling with excitement. "Oh, it was interesting, to say the least. I tried skydiving for the first time." "Wow! That's amazing," Mark exclaimed, his coffee forgotten. "How was it?"
AI
Sarah: "Oh, it was interesting, to say the least. I tried skydiving for the first time." Mark: "Wow! That's amazing. How was it?"
User/Human
“What a curious feeling!” said Alice; “I must be shutting up like a telescope.” “Not like cats!” cried the Mouse, in a shrill, passionate voice. “Would you like cats if you were me?” “Come, there’s no use in crying like that!” said Alice to herself, rather sharply; “I advise you to leave off this minute!”

Model response

AI
Alice: "What a curious feeling!" Mouse: "Not like cats! Would you like cats if you were me?" Alice: "Come, there’s no use in crying like that! I advise you to leave off this minute!"
created_at"2026-02-20T19:47:01.158Z" 2/20/2026, 7:47:01 PM
model"x-ai/grok-4-fast"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1766
moderation_latency(null)
generation_time1898
tokens_prompt227
tokens_completion48
native_tokens_prompt357
native_tokens_completion344
native_tokens_completion_images0
native_tokens_reasoning297
native_tokens_cached150
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"completed"
usage0.0002209
router(null)
provider_responses
0
endpoint_id"c9586d9d-97ff-40ca-ae94-22504d6f9b7e"
id"9aaac0eb-2d07-052e-b51c-878c9122581c"
is_byokfalse
latency387
model_permaslug"x-ai/grok-4-fast"
provider_name"xAI"
status200
api_type"completions"
id"gen-1771616821-5ypiQ7MHXhD4YE5Zu6y7"
upstream_id"9aaac0eb-2d07-052e-b51c-878c9122581c"
total_cost0.0002209
cache_discount0.0000225
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
Fail Matches Regex
/Alice: ["“”]What a curious feeling! I must be shutting up like a telescope\.["“”]\s+Mouse: ["“”]Not like cats! Would you like cats if you were me\?["“”]\s+Alice: ["“”]Come, there['‘’]s no use in crying like that! I advise you to leave off this minute!["“”]/
 n/a