I don’t recommend using the free tier for translations. Translating a simple post can wipe out all the quota in the free tier.
You can use the following query to check which post is using up the tokens:
-- [params]
-- date :start_date = '2025-11-01'
SELECT
feature_name,
created_at,
post_id,
response_tokens
FROM
ai_api_audit_logs
WHERE
post_id IS NOT NULL
AND created_at > :start_date
AND (response_tokens IS NULL OR response_tokens != 1)
ORDER BY
created_at DESC
Since I still have access to your site, I created it in your data explorer. Truly it is a post that wiped it out, you can see it on your site at /admin/plugins/explorer/queries/7.