Run: 2026-02-20-01KHYA669MVDPEANPE5YCVWBJZ

Run Details

Model:
Grok 4.1 Fast
Test:
Data extraction
Scenario:
Who's the sister?
Duration:
1.4s
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"2026-02-20T19:59:49.566Z" 2/20/2026, 7:59:49 PM
model"x-ai/grok-4.1-fast"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency768
moderation_latency(null)
generation_time1347
tokens_prompt59
tokens_completion31
native_tokens_prompt207
native_tokens_completion110
native_tokens_completion_images0
native_tokens_reasoning108
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"
usage0.0000655
router(null)
provider_responses
0
endpoint_id"9821aa0e-dce3-4c27-9716-161359123d0b"
id"190927ed-aee6-b8cb-8d6b-e3a7f46a2e35"
is_byokfalse
latency568
model_permaslug"x-ai/grok-4.1-fast"
provider_name"xAI"
status200
api_type"completions"
id"gen-1771617589-xRZT2xN83qPeO79zMilr"
upstream_id"190927ed-aee6-b8cb-8d6b-e3a7f46a2e35"
total_cost0.0000655
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