From the archive
Claude Opus 5 updates Anthropic's larger everyday model
Opus 5 replaces Opus 4.8 at the same token prices, with effort settings for coding and professional work.
Anthropic released Claude Opus 5 on July 24, 2026. The model replaced Opus 4.8 at the same standard API prices while adding improvements for coding and professional tasks.
Longer tasks and effort settings
Anthropic described improvements in work involving repositories, documents, and multi-step business workflows. Effort settings controlled how much reasoning the model spent on a task, affecting token consumption and response time.
The announcement included evaluations and early customer experiences across software engineering and document work. Those results described the tested tasks rather than guaranteeing the same outcome for every application.
Access and pricing
Opus 5 became the default on Claude Max and the strongest available model on Claude Pro. The API release used claude-opus-5, priced at $5 per million input tokens and $25 per million output tokens. The launch added a more capable option at the existing Opus price point.