Sep 15, 2026 · Artificial Intelligence

OpenAI Unbundles Codex: Agent Competition Enters Runtime Era

OpenAI decomposes Codex into CLI, SDK, App Server, and Agents API, shifting agent competition from model capabilities to runtime infrastructure; the article compares OpenAI's managed harness approach with DeepSeek's modular ecosystem and Anthropic/Google's managed agents, and guides developers on choosing between cloud-hosted, self-hosted, or hybrid runtimes based on task length, data boundaries, and observability needs.

AI agentsAgent RuntimeAgents API

0 likes · 27 min read

OpenAI Unbundles Codex: Agent Competition Enters Runtime Era

AI Waka

Apr 26, 2026 · Artificial Intelligence

Why Runtime, Not Model, Determines AI Agent Success in Production

The article argues that despite powerful models like Claude, the primary cause of AI Agent failures in production is the surrounding runtime infrastructure—such as session management, compliance, and orchestration—rather than the model itself, and examines the split between teams building custom runtimes versus those leveraging platform services.

AI agentsClaudeModel vs Runtime

0 likes · 6 min read

Why Runtime, Not Model, Determines AI Agent Success in Production

Runtime Infrastructure

OpenAI Unbundles Codex: Agent Competition Enters Runtime Era

Why Runtime, Not Model, Determines AI Agent Success in Production