OpenAI says new coding model helped build itself

The new coding model released Thursday afternoon, entitled GPT-5.3-Codex, builds on OpenAI’s GPT-5.2-Codex model and combines insights from the AI company’s GPT-5.2 model, which excels on non-coding ...
VentureBeat

Ai2 releases Tülu 3, a fully open-source model that bests DeepSeek v3, GPT-4o with novel post-training approach

The open-source model race just keeps on getting more interesting. Today, the Allen Institute for AI (Ai2) debuted its latest entry in the race with the launch of its open-source Tülu 3 405 ...
OfficeChai

OpenAI Releases GPT-5.3-Codex For Agentic Coding, Says It Was Its First Model Instrumental In Creating Itself

The frontier AI labs continue releasing models that are better than their predecessors, but there’s an interesting change in how they operate ...
VentureBeat

Ai2's new Olmo 3.1 extends reinforcement learning training for stronger reasoning benchmarks

The Allen Institute for AI (Ai2) recently released what it calls its most powerful family of models yet, Olmo 3. But the company kept iterating on the models, expanding its reinforcement learning (RL) ...