Run: 2026-05-01-01KQHRDHSC3THDFTMF3PHWRH3N

Run Details

Model:
Grok 4.20 (Reasoning)
Test:
Data extraction
Scenario:
Guess the pet
Duration:
5.1s
Cost:
$0.001388
Provider:
xAI

Evaluation summary

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

Model input

User/Human
What pet does Emma own based on the following text? Only return the pet type, nothing else. John has a dog. Sarah owns a cat. Emma's pet purrs and has whiskers. Peter has a hamster.

Model response

AI
cat The text directly describes Emma's pet as one that "purrs and has whiskers," which matches the known traits of a cat (as contrasted with the explicitly named dog, cat for Sarah, and hamster). No other pet type fits the description.
created_at"2026-05-01T12:32:34.097Z" 5/1/2026, 12:32:34 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4452
moderation_latency(null)
generation_time5056
tokens_prompt46
tokens_completion145
native_tokens_prompt168
native_tokens_completion498
native_tokens_completion_images(null)
native_tokens_reasoning446
native_tokens_cached64
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"
usage0.0013878
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"90a27b60-5dcd-61c7-64d1-8436b2ee11a5"
is_byokfalse
latency86
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-1777638754-0AzWQO0QikG2I8Kd3z3A"
session_id(null)
api_type"completions"
id"gen-1777638754-CXbjLyTJa7rVEB6USj4N"
upstream_id"90a27b60-5dcd-61c7-64d1-8436b2ee11a5"
total_cost0.0013878
cache_discount0.0000672
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
Fail Matches text
Case insensitive: cat
 n/a
Pass Matches Regex
/\bcat\b/i
 n/a
no eval