OpenAI trended in the mid- September 2025, following the launch of GPT-5‑Codex, a GPT‑5 variant tuned for coding. It features extended autonomous operation (up to 7+ hours) and practical integrations, such as a VS Code extension and Codex CLI. Influencers hailed the model’s adaptive reasoning, which efficiently handles simple tasks with minimal tokens while dedicating substantial resources to complex refactors, reveals the Social Media Analytics Platform of GlobalData, a leading data and analytics company.
Shreyasee Majumder, Social Media Analyst at GlobalData, comments: “Influencers largely expressed positive opinions on GPT-5 Codex. They acknowledged significant speed improvements, enhanced debugging and migration features, and its prospects to compete with tools like Claude Code and Copilot. The adaptive-thinking chart received praise as an innovation to optimize compute and ensure agent dependability. However, some expressed reservations, noting Codex’s specialized strength in agentic, long-term engineering tasks, which doesn’t always translate to superior open-ended code generation, and stressed the continued need for meticulous prompting and setup.”
Below are a few popular influencer opinions captured by GlobalData’s Social Media Analytics Platform:
“BREAKING NEWS: OpenAI just launched a new coding model GPT-5 Codex. We’ve been testing it at @every for a few days and it is WILD: – It dynamically chooses “thinking” time—so it works for long periods on hard questions and returns instant answers for easy ones – It ran autonomously for up to 35 minutes in our testing on a production codebase—a noticeable upgrade from GPT-5 which tended to be too cautious…”
“this is the most important chart on the new gpt-5-codex model We are just beginning to exploit the potential of good routing and variable thinking: Easy responses are now >15x faster, but for the hard stuff, 5-codex now thinks 102% more than 5. Same model, same paradigm, but bending the curve to fit the nonlinearity of coding problems and llm use cases.”
“OpenAI just released GPT-5-Codex: GPT‑5-Codex adapts how much time it spends thinking more dynamically based on the complexity of the task. The model combines two essential skills for a coding agent: pairing with developers in interactive sessions, and persistent, independent execution on longer tasks. That means Codex will feel snappier on small, well-defined requests or while you are chatting with it, and will work for longer on complex tasks like big refactors. During testing, we’ve seen GPT‑5-Codex work independently for more than 7 hours at a time on large, complex tasks, iterating on its implementation, fixing test failures, and ultimately delivering a successful implementation.”
“Codex is basically OpenAI’s answer to the likes of GitHub Copilot, Claude Code and similar AI coding agents, is getting a major update today. It adds long run autonomy, sharper reviews, and big infra speedups so teams can hand off real tasks with less babysitting. The model adjusts its thinking time by difficulty and has stayed on task for 7+ hours, iterating, testing, and fixing….”
