Pattern: The CLI Coding-Agent Field Is Consolidating Around a Few Winners
Morph·medium signal
June 2026 head-to-heads show a clear shape: OpenCode has crossed ~150K–172K GitHub stars and ~6.5M monthly active developers to become the de facto open-source choice, Codex CLI on GPT-5.5 takes the benchmark performance lead, and Aider — still strong for Git-native pairing — is visibly slowing (last repo push 2026-05-22 vs daily pushes from OpenCode and Cline). For builders choosing a CLI agent, momentum and release cadence are now meaningful differentiators, not just raw capability.