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Public story · 2026-03-16 · source-backed
Anthropic moved Opus 4.6 and Sonnet 4.6's 1M token context to GA with flat pricing across the entire window. OpenAI charges premium above 272K tokens; Google above 200K. This is the most practically significant pricing change for large-codebase and long-session agent workflows. simonwillison.net
Each link below shares sources, entities, or timing with this story.
Anthropic partners with Google / Shared entities / Same source domain / Shared topic / What happened next
Linked by a graph relationship (Anthropic partners with Google); both cover Anthropic, CLAUDE, Opus, Sonnet; reported by the same outlet (simonwillison.net).
Linked by a graph relationship (Anthropic partners with Google); both cover Anthropic, Claude, OpenAI, Opus; reported by the same outlet (simonwillison.net).
Claude Code uses Sonnet / Shared entities / Shared topic / What happened next
Linked by a graph relationship (Claude Code uses Sonnet); both cover Anthropic, Claude, Google, OpenAI; overlapping topics (agent, anthropic, claude, google).
Anthropic partners with Google / Shared entities / Shared topic / What happened next / Tension
Linked by a graph relationship (Anthropic partners with Google); both cover Anthropic, Claude, Opus, Sonnet; overlapping topics (anthropic, claude).
OpenAI partners with Google / Shared entities / Shared topic / What happened next
Linked by a graph relationship (OpenAI partners with Google); both cover Anthropic, Claude, OpenAI, Opus; overlapping topics (agent, anthropic, claude).
Claude Code uses Sonnet / Shared entities / Shared topic / What happened next
Linked by a graph relationship (Claude Code uses Sonnet); both cover Anthropic, Claude, Google, OpenAI; overlapping topics (anthropic, claude, google).
Anthropic partners with Google / Shared entities / Shared topic / What happened next
Linked by a graph relationship (Anthropic partners with Google); both cover Anthropic, CLAUDE, Opus, Sonnet; overlapping topics (anthropic, claude, context).
Anthropic partners with Google / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (Anthropic partners with Google); both cover Anthropic, Claude, Google, OpenAI; overlapping topics (anthropic, claude, google).