The new model is build to accelerate the capabilities of Codex, the agentic coding tool OpenAI launched earlier this week.

Why OpenAI’s latest coding breakthrough is forcing the company to rethink how—and how fast—it can deploy its most powerful ...

On Thursday afternoon, OpenAI released a new cutting-edge coding model that the company said assisted in its own creation. “GPT-5.3-Codex is our first model that was instrumental in creating itself,” ...

OpenAI has announced its newest model, GPT-5-Codex. The new model has been optimized for agentic coding in OpenAI’s suite of AI-powered software engineering tools, which is called Codex. This year, AI ...

You're currently following this author! Want to unfollow? Unsubscribe via the link in your email. Follow Alistair Barr Every time Alistair publishes a story, you’ll get an alert straight to your inbox ...

On SWE-Bench Verified, the model achieved a score of 70.6%. This performance is notably competitive when placed alongside significantly larger models; it outpaces DeepSeek-V3.2, which scores 70.2%, ...

GPT-5.3 Codex merges the advanced coding capabilities of GPT-5.2 Codex with the reasoning and professional knowledge of GPT-5 ...

AI startup Mistral on Wednesday announced a new AI model focused on coding: Devstral. Devstral, which Mistral says was developed in partnership with AI company All Hands AI, is openly available under ...

OpenAI has introduced GPT‑5.1-Codex-Max, a new frontier agentic coding model now available in its Codex developer environment. The release marks a significant step forward in AI-assisted software ...

On Monday, Anthropic launched a new frontier model called Claude Sonnet 4.5, which it claims offers state-of-the-art performance on coding benchmarks. The company says Claude Sonnet 4.5 is capable of ...

Cursor’s new Composer model, built for low-latency agentic coding, completes most iterations in under 30 seconds, according to Anysphere. Anysphere has introduced Cursor 2.0, an update to the AI ...

OpenAI has reached a remarkable milestone in artificial intelligence with its o3 model, a general-purpose AI system developed using reinforcement learning (RL). The o3 model secured a gold medal at ...