Run: 2026-02-20-01KHYA876XGGAY9AJZAEH0E8FK

Run Details

Model:
Grok 4.1 Fast
Test:
Data extraction
Scenario:
Indirect birth year
Duration:
1.7s
Cost:
$0.000104
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"2026-02-20T20:00:56.04Z" 2/20/2026, 8:00:56 PM
model"x-ai/grok-4.1-fast"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency341
moderation_latency(null)
generation_time1621
tokens_prompt58
tokens_completion25
native_tokens_prompt208
native_tokens_completion170
native_tokens_completion_images0
native_tokens_reasoning168
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"
usage0.00010395
router(null)
provider_responses
0
endpoint_id"9821aa0e-dce3-4c27-9716-161359123d0b"
id"857a82cb-b48a-6249-5819-f85921aa99c6"
is_byokfalse
latency95
model_permaslug"x-ai/grok-4.1-fast"
provider_name"xAI"
status200
api_type"completions"
id"gen-1771617656-tLaVCWoQ216PetQAGqrw"
upstream_id"857a82cb-b48a-6249-5819-f85921aa99c6"
total_cost0.00010395
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