2 models
Ranked by MathArena Apex
Reasoning Tools JSON Open weights 65.6

DeepSeek V4.1 Flash model for reasoning and agentic coding

deepseek/deepseek-v4.1-flash 2026-09-10 1M context $0.02/M input $1/M output
70 providers
Reasoning Tools JSON Open weights 38.7

Tencent Hy reasoning model for coding, instruction following, and agent tasks

tencent/hy3 2026-07-06 256K context $0.066/M input $0.26/M output
23 providers