Run: 2026-02-20-01KHYASTST9DVJ8292JE8WT0XE

Run Details

Model:
Grok 4.1 Fast
Test:
Data extraction
Scenario:
Indirect birth year
Duration:
1.5s
Cost:
$0.000096
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"2026-02-20T20:10:33.156Z" 2/20/2026, 8:10:33 PM
model"x-ai/grok-4.1-fast"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency407
moderation_latency(null)
generation_time1448
tokens_prompt58
tokens_completion25
native_tokens_prompt208
native_tokens_completion155
native_tokens_completion_images0
native_tokens_reasoning153
native_tokens_cached151
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"
usage0.00009645
router(null)
provider_responses
0
endpoint_id"9821aa0e-dce3-4c27-9716-161359123d0b"
id"d99afc37-fc8b-def7-4a3e-4434066947a2"
is_byokfalse
latency63
model_permaslug"x-ai/grok-4.1-fast"
provider_name"xAI"
status200
api_type"completions"
id"gen-1771618233-2ioWUg1xri2HcTx1tqnW"
upstream_id"d99afc37-fc8b-def7-4a3e-4434066947a2"
total_cost0.00009645
cache_discount0.00002265
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