Diffusion LLMs Grow Up: Mercury 3 Scales 40x and Hits 1,068 Tokens per Second While Matching Frontier Speed Models
Whether diffusion language models can compete with autoregressive models on complex tasks had been an open question. Inception's Mercury 3 scales parameters more than 40x over Mercury 1 and runs at 1,068 tokens per second on NVIDIA GPUs; the company reports it matches or beats GPT-6 Luna and Claude Haiku 5.5 on several benchmarks while running 4-8x faster. In 50 live Mind2Web navigation tasks it completed 50%, well above GPT-6.1-Sol, using the same token volume and agent steps.