1. ANTHROPIC LAUNCHES CLAUDE SONNET 5- A CHEAPER, MORE AGENTIC MID-TIER MODEL
Anthropic launched Claude Sonnet 5 on 30 June 2026, positioning it as the most agentic mid-tier model it has built- able to plan, use browsers and terminals, and run multi-step tasks autonomously at a level that previously required its top-tier model. It became the default model for all Free and Pro users from 1 July, with introductory API pricing of $2 per million input tokens and $10 per million output tokens, available through 31 August 2026, after which pricing rises to $3/$15 per million tokens.
Why this matters and opportunities for IAAD members: Cost is consistently the biggest barrier IAAD developers report when building agentic products. A frontier lab's own mid-tier model, priced at introductory rates and explicitly built for autonomous, multi-step agent tasks, is worth benchmarking now against whatever you currently use for agent workloads, before the introductory pricing window closes on 31 August.