未知机构：2026春节期间AI行业动态汇总一国内模型与产品发布-20260224

Summary of AI Industry Dynamics During the 2026 Spring Festival Domestic Model and Product Releases 1. Zhiyuan AI (February 11): Released GLM-5 with a HumanEval code pass rate of 96.2%, ranking first in global open source and fourth overall; focuses on programming and intelligent capabilities [1] 2. ByteDance (February 14): Launched Doubao Model 2.0 (Pro/Lite/Mini/Code), achieving top rankings in math/programming benchmarks and reducing inference costs by an order of magnitude; simultaneously launched Seedance 2.0, capable of generating movie-quality multi-shot audio and video in 60 seconds, becoming a key visual creation tool for the Spring Festival Gala [1] 3. Alibaba (February 16): Open-sourced Qwen3.5-Plus with a total parameter count of 397 billion and only 17 billion activated, achieving a 60% reduction in memory usage and a 19-fold increase in inference efficiency; API priced at 0.8 yuan per million tokens, which is 1/18 of Gemini 3 Pro [1] Additional Domestic Releases 4. DeepSeek (February 17): Upgraded context window from 128K to 1M tokens, capable of processing ultra-long texts equivalent to the "Three-Body Problem" trilogy [2] 5. MiniMax (February 18): Released M2.5 model with native agent design, achieving a 37% speed increase for complex tasks [2] 6. Tencent (February 19): AI creation reached 1 billion instances over 16 days during the Spring Festival [2] Overseas Model and Product Releases 7. Google (February 19): Released Gemini 3.1 Pro, significantly enhancing inference capabilities and setting a new technical benchmark [3] 8. OpenAI (February 18): Launched a proprietary model based on Cerebras chips, achieving a training efficiency increase of 5-10 times and a cost reduction of 70% [3] 9. Anthropic (February 18): Released Claude Sonnet 4.6, priced at 1/5 of flagship models, with performance approaching Opus, offering excellent cost-performance for enterprise applications [3] 10. xAI (February 20): Updated Grok 4.2, with simultaneous upgrades in multimodal and inference capabilities [3] Financing and Capital Dynamics 11. Moon's Dark Side (Kimi) (February 20): Completed a $700 million financing round led by Alibaba, Tencent, and Wuyuan, with a valuation exceeding $10 billion; cumulative financing in January and February surpassed $1.2 billion [4] 12. Zhiyuan AI/MiniMax (February 20): Market capitalization on the first trading day after the Hong Kong holiday exceeded 300 billion HKD each, totaling over 580 billion HKD [4] 13. Anthropic (February 21): Completed a $30 billion Series G round, with a valuation reaching $380 billion, led by GIC and Coatue [4] 14. OpenAI (February 21): Nearing completion of the first phase of over $100 billion in financing, with a valuation expected to exceed $850 billion [4] 15. Runway (February 21): AI video company completed a $315 million Series E round, with a valuation of $5.3 billion, focusing on world model development [4]