Run: 2026-03-12-01KKHYYGP7YKFX7W7XWNQ578E6

Run Details

Model:
Grok 4.20 (Beta)
Test:
Data extraction
Scenario:
Indirect birth year
Duration:
515ms
Cost:
$0.000202
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
Fail 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
2023 - 30 = 1993 **1993**
created_at"2026-03-12T21:23:54.187Z" 3/12/2026, 9:23:54 PM
model"x-ai/grok-4.20-beta-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency447
moderation_latency(null)
generation_time483
tokens_prompt58
tokens_completion8
native_tokens_prompt174
native_tokens_completion14
native_tokens_completion_images0
native_tokens_reasoning0
native_tokens_cached128
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"
usage0.0002016
router(null)
provider_responses
0
endpoint_id"33f49f24-a0de-4dcf-872d-ca514e83fbae"
id"607b07c6-413f-d0e8-dcfb-8a1c9e9395cc"
is_byokfalse
latency410
model_permaslug"x-ai/grok-4.20-beta-20260309"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773350634-V7Aeu5DVOfHaDqUu9Dkt"
upstream_id"607b07c6-413f-d0e8-dcfb-8a1c9e9395cc"
total_cost0.0002016
cache_discount0.0002304
upstream_inference_cost0
provider_name"xAI"

Evaluation details

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