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Release date: July 24, 2026 BetterToken now supports claude-opus-5. The model is designed for complex coding, long-running agent workflows, and multi-step work across large codebases. To connect it, create a BetterToken API Key, select the Claude provider, use https://www.bettertoken.ai as the Base URL, and select claude-opus-5 as the model ID. Always check the model plaza for current availability and pricing.

Highlights

  • Complex coding workloads: Anthropic recommends Opus 5 for complex agentic coding and professional work where quality and long-horizon reliability matter
  • Up to 1M tokens of context: The model can work with large repositories, long histories, and extensive source material
  • Up to 128K tokens of output: This supports large code changes, reports, and multi-step deliverables
  • Adaptive thinking by default: The model adjusts its reasoning depth to the task
  • Expanded effort control: Supported effort levels are low, medium, high, xhigh, and max

How to connect

  1. Register and create a BetterToken API Key, then select the Claude provider.
  2. Set the Base URL to https://www.bettertoken.ai.
  3. Select claude-opus-5 as the model.
  4. Follow the Claude Code setup guide. To manage multiple providers, use the CC Switch guide.
If you are choosing a model for a specific workload, compare Opus 5 with other options in the model selection guide.

What to check when moving from Opus 4.8

For most configurations, you can replace claude-opus-4-8 with claude-opus-5. Review these two behavior changes:
  • Thinking is enabled by default. If effort is set to xhigh or max, disabling thinking returns a 400 error.
  • max_tokens covers thinking and visible output. Leave enough headroom for tasks that require long reasoning and a large final response.
Start with a real task from your workflow, such as repository analysis, a multi-file change, or a long-running agent task. This makes it easier to assess quality, latency, and token usage before switching more workloads.

Official sources