OpenAI launches Agents API: managed Codex harness
OpenAI's Agents API brings the open-source Codex harness to a managed API, letting developers run cloud agents with pay-per-use pricing and sandbox partner options.
Sonnet 5 launches at $2/$10, nears Opus 4.8
Anthropic's Claude Sonnet 5 launches 2026-06-30 with intro pricing $2/$10 per MTok (→$3/$15 on Sep 1), a new effort-level API dial, and a near-Opus cost-performance curve.