Model

Claude Haiku 4.5

Test

Data extraction

Scenario

Contextual pronoun

Run ID

2026-02-08-01KGZ0C1KSQY5PD7YPTQWXJJNC

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
created_at"2026-02-08T16:11:50.338811+00:00" Sunday, February 8th, 2026 at 4:11:50 PM GMT+00:00
model"anthropic/claude-4.5-haiku-20251001" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1119
moderation_latency(null)
generation_time1126
tokens_prompt45
tokens_completion1
native_tokens_prompt58
native_tokens_completion5
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
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"stop" 
usage0.000083
router(null)
provider_responses
0
id"msg_01VePJf9nnAyfFzmiKxJyRqX" 
status200
is_byokfalse
latency772
endpoint_id"41d2915a-92e6-4993-b537-210b4e10cba8" 
provider_name"Anthropic" 
model_permaslug"anthropic/claude-4.5-haiku-20251001" 
api_type"completions" 
id"gen-1770567108-jr1T50R1PzPWAoSflzp5" 
upstream_id"msg_01VePJf9nnAyfFzmiKxJyRqX" 
total_cost0.000083
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic" 

Evaluation details

Result Evaluator Details Meta Data
Pass Matches text
Case sensitive: Spike
 n/a
Pass Matches Regex
/\bSpike\b/
 n/a
100.0000%