{"version":"2.1.280","anchor":"new-pricing-tier-tier-4-20-cache-read-0-20","canonical_anchor":"new-pricing-tier-tier-4-20-cache-read-0-20","heading":"New pricing tier tier_4_20_cache_read_0_20","tier":"internal","area":"Elsewhere","url":"https:\/\/changelogs.core-directive.com\/v\/2.1.280\/e\/new-pricing-tier-tier-4-20-cache-read-0-20","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.280","markdown":"### New pricing tier tier_4_20_cache_read_0_20\n\nNew pricing tier tier_4_20_cache_read_0_20 added, used for Opus 5.5\n\n**What**\n\nA new pricing tier called `tier_4_20_cache_read_0_20` was added, defining per-million-token rates of $4 for input, $20 for output, $5 for 5-minute cache writes, $8 for 1-hour cache writes, and $0.20 for cache reads. This tier is used for Opus 5.5.\n\n**Why**\n\nThis records the pricing Claude Code uses when calculating cost for Opus 5.5 usage.\n\n- Area: Elsewhere\n- Names: `tier_4_20_cache_read_0_20`\n- Tier: Under the hood\n- Useful: 2\/5\n- Signal: 2\/5"}