diff --git a/src/Data/Candidate.php b/src/Data/Candidate.php
index eca370a..5b949af 100644
--- a/src/Data/Candidate.php
+++ b/src/Data/Candidate.php
@@ -61,6 +61,10 @@ public static function from(array $attributes): self
             default => null,
         };
 
+        if (($attributes['avgLogprobs'] ?? null) === 'Infinity') { // @phpstan-ignore-line
+            $attributes['avgLogprobs'] = INF;
+        }
+
         return new self(
             content: $content,
             finishReason: $finishReason,