Anthropic Drops Long-Context Surcharge: 1M Token Context Now at Standard Per-Token Pricing for Opus 4.6 and Sonnet 4.6

The Decoder / Anthropic·high signal

Anthropic eliminated the prior 2x input / 1.5x output long-context pricing premium — a 900,000-token request now costs identical per-token to a 9,000-token one. Opus 4.6 is $5/$25 per million input/output; Sonnet 4.6 is $3/$15. MRCR v2 retrieval accuracy at 1M tokens is 78.3%, best among frontier models; also includes automatic server-side context compaction and a 6x increase in image/PDF per-request limit (600 pages). The pricing change materially improves ROI on long-document agent pipelines.