Carbon-H is being tested on Arena AI as Argon 4.
It's much better than earlier Carbon builds at coding, design and 3D, and feels faster too. Some outputs look strangely similar to Opus 5.5.
Google finally seems to be taking things seriously and improving its models.
New Gemini 4 Pro checkpoint w/ extended thinking on
Expected more but this seems all DeepMind can do. Gemini 4 prepped for release in weeks (seen internally). Vs Opus 5.5 it's a gnat but isn't the Gemini 4 to wait for. Release version may be better/worse