Enterprises expanding AI deployments are hitting an invisible performance wall. The culprit? Static speculators that can’t keep up with shifting workloads.Speculators are smaller AI models that work alongside large language models during inference. They draft multiple tokens ahead, which the main model then verifies in parallel. This technique (called speculative decoding) has become essential for enterprises trying to reduce inference costs and latency. Instead of generating tokens one at a time, the system can accept multiple tokens at once, dramatically improving throughput.Together AI today announced research and a new system called ATLAS (AdapTive-LeArning Speculator System) that aims to help enterprises overcome the challenge of static speculators. The technique provides a self-learning inference optimization capability that can help to deliver up to 400% faster inference performance than a baseline level of performance available in existing inference technologies such as vLLM.. The system addresses a critical problem: as AI workloads evolve, inference speeds degrade, even with specialized speculators in place.The company which got its start in 2023, has been focused on optimizing inference on its enterprise AI platform. Earlier this year the company raised $305 million as customer adoption and demand has grown.”Companies we work with generally, as they scale up, they see shifting workloads, and then they don’t see as much speedup from speculative execution as before,” Tri Dao, chief scientist at Together AI, told VentureBeat in an exclusive interview. “These speculators generally don’t work well when their workload domain starts to shift.”The workload drift problem no one talks aboutMost speculators in production today are “static” models. They’re trained once on a fixed dataset representing expected workloads, then deployed without any ability to adapt. Companies like Meta and Mistral ship pre-trained speculators alongside their main models. Inference platforms like vLLM use these static speculators to boost throughput without changing output quality.But there’s a catch. When an enterprise’s AI usage evolves the static speculator’s accuracy plummets.”If you’re a …
