AI News: April 21, 2026

1. Moonshot Ships Kimi K2.6 GA: 1T-Parameter MoE That Orchestrates 300 Sub-Agents

Moonshot AI. Moonshot dropped the “Preview” tag from Kimi K2.6 and pushed the model to Kimi.com, the API, and Hugging Face under a Modified MIT license. The 1T-parameter MoE (32B active, 384 experts, 256K context, INT4 quantization) targets long-horizon coding and can orchestrate up to 300 sub-agents over 4,000 coordinated steps, bringing fully open weights into direct competition with Claude Opus 4.6 and GPT-5.4 on agentic-coding benchmarks. Source

2. Honor’s “Lightning” Humanoid Beats Every Human in Beijing E-Town Half Marathon

Honor. A bipedal humanoid built by smartphone maker Honor finished Beijing’s second E-Town robot half marathon in 50:26, beating Jacob Kiplimo’s human world record by nearly seven minutes and outpacing all 12,000 human entrants. Participation jumped from 20 to 100+ teams since last year and roughly half the robots ran fully autonomously, a sharp marker of how fast Chinese embodied-AI hardware has improved in 12 months. Source

3. Fermi CEO and CFO Out as AI Nuclear-Power Startup Restructures

Fermi America. CEO Toby Neugebauer and CFO Miles Everson resigned as Fermi launched a “2.0” restructuring; COO Jacobo Ortiz Blanes and board advisor Anna Bofa step in as Co-Presidents. The shake-up follows a cancelled $150M tenant deal at Project Matador and missed March anchor-tenant targets, denting one of the highest-profile bids to pair small modular nuclear with AI training campuses. Source

4. Deezer: 44% of New Daily Uploads Are AI-Generated and 85% of Those Streams Are Fraudulent

Deezer. Deezer reported it now ingests roughly 75,000 AI-generated tracks per day, 44% of all uploads, up from 10,000 a day in early 2025. AI tracks still account for only 1–3% of streams, but 85% of those are fraudulent stream-farm activity that the service now demonetizes — the clearest published data yet on how generative audio is reshaping streaming economics. Source

5. Eli Lilly to Buy Kelonia for Up to $7B for In Vivo CAR-T Platform

Eli Lilly. Eli Lilly will pay $3.25B upfront and up to $3.75B in milestone payments to acquire Boston-based Kelonia Therapeutics, whose lead program KLN-1010 generates anti-BCMA CAR-T cells inside patients via a one-time IV gene therapy. The deal is one of the largest 2026 acquisitions tied to AI-designed cell therapies and is expected to close in H2 2026. Source

6. X Square Robot Closes ~$276M Series B Led by Xiaomi and Sequoia China

X Square Robot. Embodied-AI startup X Square Robot closed a Series B of nearly RMB 2 billion (~$276M) co-led by Xiaomi and Sequoia China to scale its WALL-A “Great Wall” embodied foundation model and commercial deployments in education, hospitality, and elder care. Coming three months after a $140M raise, it shows continued capital concentration around Chinese embodied-AI labs trying to pair foundation models with humanoid hardware. Source

7. Makko Launches AI 2D Game Studio with 40,000+ Beta-Generated Assets

Makko. Makko launched on Product Hunt with an AI 2D game studio combining a “Collections” art studio for cohesive sprite and asset generation and an AI Code Studio that turns conversations into playable prototypes, with users having created 40,000+ assets in beta. It is a notable test case for end-to-end generative pipelines aimed at indie developers rather than Unity or Unreal pros. Source

8. ScreenPoint Medical Adds $14M Plus $2M in Grants for Breast-Imaging AI

ScreenPoint Medical. Dutch radiology AI vendor ScreenPoint Medical announced $14M in new equity plus $2M in non-dilutive research grants to expand deployment of its Transpara breast-cancer detection platform across screening programs. It is a smaller round, but a signal that European-regulated radiology AI continues to attract growth capital even as US imaging incumbents consolidate. Source

9. FDA Rejects Harrison.ai Petition to Skip Premarket Review for Radiology AI

US FDA. The FDA denied Australian developer Harrison.ai’s citizen petition asking the agency to drop 510(k) premarket review for certain computer-aided detection devices in favor of post-market monitoring. The decision reaffirms that even mature, narrowly-scoped imaging AI will continue to face full premarket scrutiny — a setback for vendors hoping for a faster Class II pathway. Source

10. Import AI 454: HiFloat4 Format and an External Safety Review of a Chinese Frontier Model

Import AI. Jack Clark’s weekly roundup spotlights work on automating alignment research, an external safety evaluation of a Chinese frontier model, and HiFloat4 — a 4-bit floating-point format aimed at training-time efficiency. The HiFloat4 result is part of the broader push past FP8 toward sub-byte precision for both training and inference. Source