New Delhi: OpenAI recently launched its latest Codex, which is already making waves in the vibe coding vertical, and it’s now set to get better for developers and coding users. For those unaware, Codex runs in Terminal, IDE and web to assist users with coding. Codex goes beyond the typical nudge for coding help. Instead, it can help users code a full-fledged application or website. OpenAI is now testing a few of the latest features for Codex, which could be announced at the company’s DevDay 2025 next week.
Ahead of the announcement, OpenAI has quietly added a latest Codex Alpha opt-in. As the users see in the above screenshot, Codex Alpha allows users to opt into the latest program that gives users early access to features. Get early access to the latest Codex models and features. The description of the feature is needed. Users have updated to the latest Codex from Windows Terminal, but they cannot get access to any newer model.
Right now, the Codex is only offering access to the following models for the developers and coders:
- GPT-5 Codex Low
- GPT-5 Codex medium
- GPT-5 Codex High
- GPT-5 Minimal fastest responses with limited reasoning, ideal for coding, instructions, or lightweight tasks
- GPT-5 Low balances speed with some reasoning, practical for straightforward queries and short explanations
- GPT-5 Medium default setting, provides a solid balance of reasoning depth and latency for general-purpose tasks
- GPT-5 High maximises reasoning depth for complex or ambiguous problems
