Find XO: Open model matches GPT-5.5 at 1/6 cost, moat lies outside the model (huggingface.co)

- On June 17, Z.ai released GLM-5.2, which outperformed GPT-5.5 on several long-horizon coding benchmarks at about one-sixth the cost. - It features 753B MoE, 1M context length, and has its weights released under the MIT license. - Companies relying on closed APIs need to reconsider build versus buy calculations. - Select a core task to reevaluate quality, cost, and data export terms directly, and verify whether switching models retains product value.