Run: 2026-02-20-01KHY99KYFY2BVSVGXPR00XH84

Run Details

Model:
Grok 4 Fast
Test:
Data extraction
Scenario:
Who's the sister?
Duration:
568ms
Cost:
$0.000066
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
Pass Matches text (details)
Pass Matches Regex (details)
no eval Overall

Model input

User/Human
Who is the sister of Sandie based on the following text? Only return the name, nothing else. Sandie has a doll named Lulu, she carries it around all day. She says she's her little sister, but her actual sister's name is Cassie.

Model response

AI
Cassie
created_at"2026-02-20T19:44:13.271Z" 2/20/2026, 7:44:13 PM
model"x-ai/grok-4-fast"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency509
moderation_latency(null)
generation_time509
tokens_prompt59
tokens_completion2
native_tokens_prompt207
native_tokens_completion111
native_tokens_completion_images0
native_tokens_reasoning109
native_tokens_cached206
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"
usage0.000066
router(null)
provider_responses
0
endpoint_id"c9586d9d-97ff-40ca-ae94-22504d6f9b7e"
id"df47eace-308f-4fb9-9bd6-168b144f7d4d"
is_byokfalse
latency55
model_permaslug"x-ai/grok-4-fast"
provider_name"xAI"
status200
api_type"completions"
id"gen-1771616653-XplUURjv8j2CmMdRaZkh"
upstream_id"df47eace-308f-4fb9-9bd6-168b144f7d4d"
total_cost0.000066
cache_discount0.0000309
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
Pass Matches text
Case sensitive: Cassie
 n/a
Pass Matches Regex
/\bCassie\b/
 n/a
no eval