Anthropic retired Claude Sonnet 4 and Claude Opus 4, and requests to them now return errors.

Pinned model IDs now break unless moved to the recommended Sonnet 4.6 or Opus 4.8 replacements.

This sits beside latest-models guidance and leaves researcher access as the only stated path for ongoing access.

• Jul 17, 2026Anthropic pricing removed the Claude plan quiz recommending Team or Enterprise self-serve.
• Jul 17, 2026OpenAI pricing page removed Business and Enterprise plan copy.
• Jul 16, 2026Google pricing diff removed Gemini API model navigation and Interactions API note

This is the world we build in. It moves this fast. We move with it.