BREAKING 🚨: OpenAI released GPT-5.3-Codex-Spark, a new, faster model powered by @cerebras infrastructure!
— 🚨 AI News | TestingCatalog (@testingcatalog) 12 février 2026
Available to Pro users only as a research preview. https://t.co/DVrKJcLt63 pic.twitter.com/6JoarpB8zr
BREAKING : OpenAI released GPT-5.3-Codex-Spark, a new, faster model powered by @cerebras infrastructure! Available to Pro users only as a research preview.