Opus 5 costs a third of the price — and that’s actually the problem
The New Stack Amanda Caswell ● Covered by 12 sources
Anthropic released Opus 5, priced at $5 per million input tokens and $25 per million output tokens—one-third the cost of Fable 5—while achieving state-of-the-art results on coding benchmarks including OSWorld 2.0 and ARC-AGI 3. The lower cost enables longer autonomous agent execution, but creates new operational challenges around security, token spend control, and detecting when models fail to stop tasks. Platform teams must now implement microVMs, short-lived credentials, semantic circuit breakers, and better telemetry to safely deploy unsupervised AI agents that run unattended for hours.
Why it matters
On Friday, Anthropic launched Opus 5, the latest iteration of its heavyweight model. Arriving just two months after Opus 4.8 The post Opus 5 costs a third of the price — and that’s actually the problem appeared first on The New Stack.
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