Run: 2026-05-01-01KQHS8MBA7PVDTEWE28PCXDQ0

Run Details

Model:
Grok 4.20
Test:
Data extraction
Scenario:
Indirect birth year
Duration:
506ms
Cost:
$0.000106
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
created_at"2026-05-01T12:47:21.454Z" 5/1/2026, 12:47:21 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency360
moderation_latency(null)
generation_time479
tokens_prompt58
tokens_completion4
native_tokens_prompt174
native_tokens_completion9
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached128
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.0001056
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"d9e59e19-110d-6f77-779f-5259aa7e9f9f"
is_byokfalse
latency61
model_permaslug"x-ai/grok-4.20-20260309"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777639641-eE3q4EvMUaL4RSFct6iE"
session_id(null)
api_type"completions"
id"gen-1777639641-UltyIvm2bMHdrnx5cMQ5"
upstream_id"d9e59e19-110d-6f77-779f-5259aa7e9f9f"
total_cost0.0001056
cache_discount0.0001344
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)

Evaluation details

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