According to @godofprompt citing @claudeai, Anthropic has made a 1 million token context window generally available for Claude Opus 4.6 and Claude Sonnet 4.6 at standard per-token pricing with no premium multiplier, removing the previous 2x input and 1.5x output surcharge beyond 200K tokens. As reported by @claudeai, a 900K-token request now costs the same per token as a 9K request, enabling entire codebases, long legal contracts, or extended agent sessions to fit in one continuous window. According to @claudeai, Opus 4.6 scores 78.3% on MRCR v2 at 1M tokens, indicating leading long-context recall among frontier models, and Claude Code users on Max, Team, and Enterprise get 1M by default with about 15% fewer compaction events. For enterprises running long-document review, multi-file code analysis, or persistent agent loops, the flat-rate 1M context meaningfully lowers total cost of ownership and reduces retrieval and chunking complexity, according to @godofprompt’s summary of @claudeai’s announcement.