Run: 2026-03-12-01KKHYTCGXJSH5PHEJZZ5DM52D

Run Details

Model:
Grok 4.20 (Beta, Reasoning)
Test:
Data extraction
Scenario:
Contextual pronoun
Duration:
1.9s
Cost:
$0.002768
Provider:
xAI

Evaluation summary

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

Model input

User/Human
Who does "he" refer to in the last sentence? Only return the name. Tom and Jerry were playing in the yard. Spike, the dog, was watching them from his kennel. Suddenly, he started barking loudly.

Model response

AI
Spike The pronoun "he" anaphorically refers to the most recently mentioned male entity (Spike) who is the grammatical subject of the preceding sentence and whose action (barking) is semantically consistent with the predicate.
created_at"2026-03-12T21:21:38.85Z" 3/12/2026, 9:21:38 PM
model"x-ai/grok-4.20-beta-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1664
moderation_latency(null)
generation_time1865
tokens_prompt51
tokens_completion59
native_tokens_prompt170
native_tokens_completion443
native_tokens_completion_images0
native_tokens_reasoning399
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"
usage0.0027676
router(null)
provider_responses
0
endpoint_id"33f49f24-a0de-4dcf-872d-ca514e83fbae"
id"c32ace01-0861-94fa-cf0a-99efb990a751"
is_byokfalse
latency283
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-1773350498-0HEx131qXvqPhK20EFtI"
upstream_id"c32ace01-0861-94fa-cf0a-99efb990a751"
total_cost0.0027676
cache_discount0.0002304
upstream_inference_cost0
provider_name"xAI"

Evaluation details

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