3 models
Ranked by Humanity's Last Exam
Reasoning Tools JSON Open weights 54.7

Open flagship GLM for long-horizon coding agents and million-token context work

zhipuai/glm-5.2 2026-06-13 1M context $1.4/M input $4.4/M output
72 providers
Reasoning Tools JSON Open weights 47.2

Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model. It pairs a 196B-parameter language backbone with a vision encoder for native image and video understanding, activating roughly 11B parameters...

stepfun/step-3.7-flash 2026-05-29 256K context $0.2/M input $1.15/M output
17 providers
Reasoning Tools Open weights 37.4

NVIDIA Nemotron 3 Ultra is an open frontier-reasoning and orchestration model from NVIDIA, with 55B active parameters out of 550B total (MoE). Built on a hybrid Transformer-Mamba mixture-of-experts architecture, it...

nvidia/nemotron-3-ultra-550b-a55b 2026-06-04 256K context $0.625/M input $3.125/M output
15 providers