2 models
Ranked by MCP Atlas
Reasoning Tools JSON Open weights 76.8

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 75.3

Default frontier GPT for coding, computer use, research, and knowledge work

openai/gpt-5.5 2026-04-23 1.05M context $5/M input $30/M output
46 providers