What happened
On June 30, 2026, Anthropic released Claude Sonnet 5, its most capable and agentic Sonnet model yet, positioned as a lower-cost way to run agents. It posts strong coding and computer-use scores that narrow the gap with the flagship Opus 4.8. Launch API pricing is $2 per million input tokens and $10 per million output tokens through August 31, before rising to $3 and $15.
The context
Sonnet is the workhorse tier most developers actually deploy, so gains here spread quickly across apps and tools.
Apps you use may get smarter and cheaper to run, which can mean lower costs or more generous free tiers.
Why this moves the Board: Release execution · Materiality 4 · T3 Reported → weighed for Anthropic at the next refresh.
Sources
- TechCrunch, https://techcrunch.com/2026/06/30/anthropic-launches-claude-sonnet-5-as-a-cheaper-way-to-run-agents/ Reported
See Anthropic's Vikshy Score → · Anthropic's models & pricing →