1. How large is the MODELS table?
2. How large is the STANDARD table?
3. Is the MODEL_ID column in the MODELS table a primary or alternate key?
4. If you start this job, open a QA session, and execute sp_who2, is your table load being blocked by another process?
If the MODELS table is not overly large, you could execute a nolock count on MODELS.MODEL_ID to see if rows are being added to the MODELS table without throwing any additional locks onto the table.
If you have a large quantity of inserts, maybe you want to break them up into smaller batches of about 1K - 5K so that the tran log doesn't have to auto expand.
Without more information on rowcounts, table sizes, table indexes, etc. even a simple request for help is difficult to answer.