What's happened here is called a reverse share split, or consolidation. (moneysense.ca)
As you can see from the cost - sharing split above, Bronze plan premiums are cheaper because the consumer pays more out of pocket for healthcare services. (policygenius.com)
The metal tiers — bronze, silver, gold and platinum — help shoppers understand the cost - sharing split between them and the insurance company and compare plans apples - to - apples. (policygenius.com)