A r/LocalLLaMA user questions whether BitNet and ternary LLMs were a dead end after earlier promise around efficient low-bit models. The post notes that the largest ternary model appears to remain around 2B parameters. It asks why frontier open-weight AI labs are not visibly pursuing the approach, but provides no technical evidence or definitive answer.
Mistral AI introduced Leanstral, an open-source code agent designed for Lean 4 and formal proof engineering. The model is available through Apache 2.0 weights, Mistral Vibe, and a Labs API endpoint. Mistral positions it as a cost-efficient alternative for verified coding workflows, with FLTEval benchmarks comparing it against Claude family models and large open-source competitors.