2 models
Ranked by Design Arena: website
Reasoning Tools JSON 1322.0

Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model and a post-trained successor to Kimi K3, with a 1M-token context window. It is built for long-horizon coding, 3D...

moonshotai/kimi-k3.1-pro 2026-10-23 1.04858M context $2/M input $10/M output
16 providers
Reasoning Tools JSON 1315.0

Gemini 4 Argon is Google's flagship reasoning model, built for complex software engineering, deep mathematical and scientific problem solving, and autonomous multi-step agents. Google trained it to keep context across...

google/gemini-4-argon 2026-10-13 1.04858M context $2/M input $10/M output
24 providers