Run: 2026-05-01-01KQHRM8CQQ3WEW1M0QDYJJ3WZ

Run Details

Model:
Grok 4.20 (Reasoning)
Test:
Data extraction
Scenario:
Guess the pet
Duration:
3.9s
Cost:
$0.000996
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 unambiguously matches the known traits of a cat (distinct from the dog, hamster, or any other pet listed). No other pet type fits these exact characteristics, and the instruction requires outputting solely the pet type with no additional explanation.
created_at"2026-05-01T12:36:13.861Z" 5/1/2026, 12:36:13 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2932
moderation_latency(null)
generation_time3805
tokens_prompt46
tokens_completion115
native_tokens_prompt168
native_tokens_completion368
native_tokens_completion_images(null)
native_tokens_reasoning302
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"
usage0.0009956
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"040601e5-41ce-c1ba-c67a-37f6c83f0290"
is_byokfalse
latency90
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-1777638973-cVMYX3Q4ntqHjfYIs5v3"
session_id(null)
api_type"completions"
id"gen-1777638973-lskrOOuF1D4b4fRT6ZUj"
upstream_id"040601e5-41ce-c1ba-c67a-37f6c83f0290"
total_cost0.0009956
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 insensitive: cat
 n/a
Pass Matches Regex
/\bcat\b/i
 n/a
no eval