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Writer introduces new AI model and upgraded harness to contain token costs

Built as a post-training variation on Z.ai's open source model GLM-5.2, Writer says the new system should provide deployment-ready capabilities at a much lower price.

  • Writer launches Palmyra X6 model to reduce AI deployment costs
  • Upgraded harness infrastructure claims 50% cost reduction for basic tasks
  • Harness optimization strategy cuts average costs by 40% compared to model changes