Is Sonnet 5 actually more cost effective in practice?

Jun 30, 2026

Anthropic have just released Sonnet 5, their cost effective alternative to Opus 4.8. The token cost is much lower, but when we analyse the telemetry, we find something surprising. It turns out, it's not all about token cost!

To find out how we analysed Claude in this video, check out https://coralogix.com/platform/code-agent-observability/