OpenAI launches its first model partially built by itself: GPT-5.3-Codex

OpenAI launches GPT-5.3-Codex with faster coding, stronger reasoning, and higher benchmark accuracy—plus API access soon.

OpenAI dishes out its first model on a plate of Cerebras silicon

GPT-5.3-Codex-Spark may be a mouthfull, but it's certainly fast at 1,000 Tok/s running on Nvidia rival's CS3 accelerators Nvidia and AMD can take a seat. On Thursday, OpenAI unveiled ...
CNBC

Microsoft-backed AI lab Mistral is launching its first reasoning model in challenge to OpenAI

French AI firm Mistral will release its first reasoning model Tuesday, taking on the likes of OpenAI and China’s DeepSeek. Mistral’s new Magistral model specializes in reasoning in European languages, ...
TechCrunch

For the first time, OpenAI models are available on AWS

Sam Altman’s blowtorch to his competitors is so hot, it even includes a new partnership with Amazon Web Services. As OpenAI announced two open-weight reasoning models with capabilities on par with its ...