Model updates
Claude Opus 5.5 is now available on BetterToken
Claude Opus 5.5 is available on BetterToken as claude-opus-5-5 for complex coding, long-running agents, professional work, and repeated-context workflows.
Release date: September 22, 2026
Anthropic introduces Claude Opus 5.5 as the first model in the Claude 5.5 family. Anthropic reports improvements over Opus 5 on long-running coding and professional work, with clearer communication across extended sessions.
Claude Opus 5.5 is now available on BetterToken. Set the Base URL to https://bettertoken.ai, and use claude-opus-5-5 as the model ID. Check the model plaza for current availability and pricing.
Highlights
- Long-running coding agents: use it for complex repository changes, audits, and multi-step work.
- Production-oriented work: Anthropic recommends it for production-ready code, complex documents, and computer use.
- Clearer collaboration: Anthropic reports more direct, easier-to-follow explanations than Opus 5 in long sessions.
Connect it
- Create a BetterToken API Key.
- Use
https://bettertoken.aias the Base URL. - Set the model ID to
claude-opus-5-5. - Test a representative task before moving production traffic.
Use the Claude Code setup guide for client setup, or compare alternatives in the model selection guide.
