Long context models stories

Jun 17, 2026

Z.ai Releases GLM-5.2, 753-Billion Parameter Open-Weight Model

Chinese AI startup Z.ai (formerly Zhipu AI) has released GLM-5.2, a 753-billion parameter open-weight language model that achieved the highest score (51) among open models on the Artificial Analysis Intelligence Index and reportedly outperforms GPT-5.5 on long-horizon coding benchmarks at one-sixth the cost. The model features a 1-million token context window and is available under MIT license on Hugging Face.

Jun 17, 20269 sources

Long context models stories

Z.ai Releases GLM-5.2, 753-Billion Parameter Open-Weight Model

Chinese AI Startup MiniMax Launches M3 Coding Model With Million-Token Context Window

Subquadratic Raises $29 Million Seed Round for Long-Context AI Architecture

DeepSeek Releases V4 AI Model with Reduced Costs

DeepSeek Previews V4 Model Series with Million-Token Context Windows

Google Releases Gemma 4 Open Models Under Apache 2.0 License

Related timelines

US Congress

Venture capital funding

Iran War

Strait of Hormuz blockage

Trump administration