5 models
Ranked by IFBench
Reasoning Tools Open weights 81.7

Largest Nemotron 3 model for maximum open-weight reasoning and agent accuracy

nvidia/nemotron-3-ultra-550b-a55b 2026-06-04 1M context $0.1/M input $0.1/M output
17 providers
Reasoning Tools JSON Open weights 81.3

Open-weight experimental preview of the Qwen4 architecture: hybrid-attention MoE (125B total, 6B active) with vision encoder for coding, agent tasks, and image and video understanding

alibaba/qwen3.8-flash-next 2026-08-27 262.144K context $0.1/M input $0.2/M output
6 providers
Reasoning Tools Open weights 79.6

Sparse mixture-of-experts reasoning model with 23B active parameters for coding and agentic workflows

reflection/beam-1.0-501b-a23b 2026-10-05 1.04858M context $0.24/M input $0.98/M output
9 providers
Reasoning Tools JSON Open weights 79.5

Dense 27B vision-language model for coding, agent tasks, and image and video understanding

alibaba/qwen3.8-27b 2026-08-14 262.144K context $0.04/M input $1.35/M output
46 providers
Reasoning Tools JSON Open weights 71.9

Fast NVIDIA Nemotron MoE for reliable agentic tasks across enterprise workloads

nvidia/nemotron-3.5-lightning 2026-08-11 262.144K context $0.025/M input $0.12/M output
13 providers