OpenAI is rolling out Codex Security, an AI-powered application security agent that finds, validates and proposes fixes for ...

Sam Altman says ChatGPT Codex subagents outperform Claude Code, using plain-language triggers and configurable agent files for PR reviews and debugging workflows.

OpenAI launches Codex Security AI agent that scanned 1.2M commits, finding 792 critical and 10,561 high-severity vulnerabilities in open-source projec ...

The big headlines on this release are efficiency, with OpenAI reporting that GPT-5.4 uses far fewer tokens (47% fewer on some ...

OpenAI launches GPT-5.4 mini and nano, smaller models built for lower-cost coding, multimodal tasks, subagents, and ...

Anthropic, a smaller rival started by OpenAI defectors, has found runaway success with its programming agent, Claude Code.

Developers can activate OpenAI’s new tool by giving it access to the code repository they wish to scan. According to the ChatGPT developer, Codex Security creates a temporary copy of the repository in ...

OpenAI is pivoting from broad ambitions to focus on coding tools and enterprise clients, acknowledging competitor Anthropic's ...

OpenAI released ChatGPT 5.4 Mini and ChatGPT 5.4 Nano, smaller models tuned for low latency and cost, with Nano priced at $0.20 per million input tokens.

OpenAI Group PBC and Mistral AI SAS today introduced new artificial intelligence models optimized for cost-sensitive use cases. OpenAI is rolling out two algorithms called GPT-5.4 mini and GPT 5.4 ...