The news of July 25thAnthropic Yesterday, a new generation of closed sources was officially releasedLarge Model Claude Opus 5 and sync to AWS. The new model, which is based on high value for money versus adjustable thinking slots (efort), is prominent in such tasks as programming, long file reasoning and complex business analysis。
API pricing maintains token 5 dollars per million input, 25 dollars for output, at the same rate as Opus 4.8; start Fast mode response speeds up 2.5 times, double the bill. In the CursorBench 3.2 programming test, the Opus 5 achievement that opens the highest thinker slot is only 0.5% at half the cost of Fable 5。
Opus 5 has a stronger and more complex mission autonomous validation capability. When high-risk network security requests are involved, the system will automatically revert to Opus 4.8 for processing. In addition, because of the increased context understanding, the official indication is that the developers can significantly streamline the system ' s hint (system prompt)。