Run: 2026-02-20-01KHYB7DW3ZVHJMQTEP6BKREGW

Run Details

Model:
Grok 4.1 Fast
Test:
Data extraction
Scenario:
Indirect birth year
Duration:
1.2s
Cost:
$0.000099
Provider:
xAI

Evaluation summary

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

Model input

User/Human
What year was Sarah born? Only return the year as a four-digit number. In 2023, Sarah celebrated her 30th birthday with a big party. Her younger sister, who is 5 years younger, couldn't attend because she was studying abroad.

Model response

AI
1993
created_at"2026-02-20T20:17:58.67Z" 2/20/2026, 8:17:58 PM
model"x-ai/grok-4.1-fast"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency264
moderation_latency(null)
generation_time1137
tokens_prompt58
tokens_completion25
native_tokens_prompt208
native_tokens_completion176
native_tokens_completion_images0
native_tokens_reasoning174
native_tokens_cached207
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"
usage0.00009855
router(null)
provider_responses
0
endpoint_id"9821aa0e-dce3-4c27-9716-161359123d0b"
id"f167cf48-ee6f-3cd0-d13a-f5b2df74b0b5"
is_byokfalse
latency73
model_permaslug"x-ai/grok-4.1-fast"
provider_name"xAI"
status200
api_type"completions"
id"gen-1771618678-M3k8ntnZ10apq46sffVh"
upstream_id"f167cf48-ee6f-3cd0-d13a-f5b2df74b0b5"
total_cost0.00009855
cache_discount0.00003105
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
Pass Matches text
Case sensitive: 1993
 n/a
Pass Matches Regex
/\b1993\b/
 n/a
no eval