Latest article
July 19, 2026
Three Frontier Models in One Month: Claude Fable 5, GPT-5.6, and GLM-5.2
In five weeks over June and July 2026, three labs shipped flagship models: Anthropic's Mythos-class Claude Fable 5, OpenAI's tiered GPT-5.6 (Sol, Terra, Luna), and Z.ai's open-weight GLM-5.2. Here are the specs, prices, benchmarks, and the caveats worth knowing.
Read latest article

















































