Tencent released Hy4 preview under Apache 2.0 on August 28: 770B total parameters, 49B active, 256 routed experts per layer with top-8 routing, 1M context, and a built-in speculative-decoding layer. The architecture makes some interesting bets — and the ratio of total to active compute is the most aggressive we've seen at this scale.
Z.ai reveals that Ox Alpha — the anonymous model circulating on OpenRouter and OpenCode for a week — is GLM-5.3-Flash: a 320B/18B mixture-of-experts with linear attention, native multimodal input, and an MIT license. It ran the whole time on domestically produced Chinese chips.
FreeToken, from a team at UC Berkeley and MIT, proposes a serving stack that treats a personal machine's CPU, GPU, and RAM as a single elastic compute surface, adapting to what's actually available rather than committing to a fixed offloading strategy. The result: a 35B model on an 8GB laptop GPU, 284B on a gaming desktop, and the 753B GLM-5.2 on a single workstation with one high-end GPU.
DeepGrove's Maple-Preview is a 20B ternary-weight MoE reasoning model trained from scratch at {-1, 0, +1} precision — not quantized down from float. The 5.31 GB checkpoint runs at 218 tokens/second on an M4 Mac mini and 120 tok/s on iPhone, with competitive AIME and GPQA-D scores and an MIT license.
Swiftlet is a new Swift+Metal runtime that runs 80B-parameter Qwen3-Next in 4.3 GB of RAM on an M5 Mac — not through compression magic, but by exploiting a structural property of MoE models: they activate only about 3B parameters per token regardless of total size. The missing piece is fast enough SSD I/O to stream expert weights on demand, which Apple silicon happens to provide.
SQLiteAI released WASTE, a dependency-free C inference engine that runs Kimi K3's 2.78-trillion-parameter model on 29GB of RAM at 0.50 tok/s by keeping the resident trunk in memory and streaming activated experts from NVMe with a single pread() per expert.
TurboFieldfare, a Swift/Metal inference engine posted to Hacker News overnight, runs Gemma 4 26B in roughly 2 GB of RAM by keeping the model's shared core in memory and streaming routed experts from SSD via explicit pread I/O — achieving 31–35 tok/s on an M5 MacBook Pro, well into interactive usability. It's the expert-streaming technique from Colibri, applied to a smaller MoE on purpose-built Apple hardware, and the throughput gap shows what platform-specific implementation buys.
Poolside released Laguna S 2.1, a 118B-total / 8B-active MoE coding model that scores 70.2% on Terminal-Bench 2.1 — above DeepSeek-V4-Pro-Max at 64.0% and Inkling at 63.8%, both of which are an order of magnitude larger by active parameters. The weights are open under OpenMDW-1.1.
Moonshot AI announced Kimi K3 on July 16, claiming "the world's first open 3T-class model" at 2.8 trillion total parameters — with weights delayed until July 27. The architecture uses a 16-of-896 expert MoE with Kimi Delta Attention and MXFP4 quantization-aware training, keeping active inference cost near a 50B model while scaling total capacity nearly three-fold over K2.
Thinking Machines Lab, the startup founded by former OpenAI CTO Mira Murati, released its first public model on July 15: Inkling, a 975B total / 41B active mixture-of-experts trained on 45 trillion multimodal tokens, Apache 2.0 licensed, with AIME 2026 97.1% and SWEBench Verified 77.6%. The lab's explicit framing is "not the best, but the most customizable" — a positioning bet that the open-weights market rewards fine-tuning infrastructure over raw benchmark supremacy.
Tencent released Hy3 on July 6 under Apache 2.0 — a 295B MoE model with 21B active parameters that scores 90.4 on GPQA Diamond and 78.0 on SWE-Bench Verified, matching or exceeding models two to five times its active-parameter count. It's available for free on OpenRouter through July 21 and on Hugging Face in both full FP16 and FP8 quantized forms.
Colibri, a ~1300-line pure-C engine posted on Hacker News overnight, runs the 744B GLM-5.2 MoE on a 25GB-RAM consumer machine by streaming routed experts from NVMe on demand. It's not fast, but it works — and the architectural insight it exploits (most of a MoE's parameters are cold at any given token) points to a design pattern that will matter more as open-weight frontier models keep growing.
Meituan's LongCat-2.0 — a 1.6T-parameter open-weight MoE trained entirely on domestic Chinese ASICs — spent two months deployed anonymously on OpenRouter as "Owl Alpha," quietly reaching #1 on Hermes Agent and #2 on Claude Code before the company claimed it. The reveal is technically notable, but the verification gaps are worth keeping in view.
DeepReinforce released Ornith-1.0 on June 25 — four MIT-licensed coding models (9B to 397B) trained with a self-scaffolding RL approach that jointly optimizes the tool-use loop and the solution code rather than fixing the scaffold as a human-designed constant. The 397B variant beats Claude Opus 4.7 on SWE-Bench Verified and Terminal-Bench 2.1; the 35B MoE beats Qwen 3.5-397B on Terminal-Bench at one-eleventh the parameter count.
Meituan open-sourced LongCat-2.0 today — a 1.6-trillion-parameter MoE with a 1M-token context window trained entirely on domestic Huawei Ascend ASICs. It is the first plausible demonstration that frontier-scale pre-training is achievable without NVIDIA hardware, arriving on the same week that US export restrictions on Anthropic's top models remained in partial force.
Z.ai shipped the MIT weights for GLM-5.2 on June 17 — 753B MoE, 40B active, 1M context — and the benchmarks back up the release: 74.4% on FrontierSWE, 81% on Terminal-Bench 2.1, and top of the Artificial Analysis open-weights leaderboard. The catch is token consumption nearly double its nearest open-weights competitors.
Z.ai shipped GLM 5.2 to every Coding Plan subscriber on June 13 with a 1-million-token context and zero published benchmarks. Open weights arrive "next week." The inversion — distribution first, proof second — is becoming a deliberate strategy in the crowded coding-model space.
Moonshot AI's Kimi K2.7-Code is a 1-trillion-parameter MoE coding model that improves on its predecessor while using 30% fewer reasoning tokens. The reasoning-token efficiency story is the interesting part: the model has been explicitly tuned to stop overthinking, and the benchmarks suggest it works.
Xiaomi and TileRT published MiMo-V2.5-Pro-UltraSpeed on June 8, pushing a one-trillion-parameter model past 1000 tokens per second on a single standard 8-GPU node — no custom silicon, just three carefully chosen co-design decisions applied to a commodity cluster.
Microsoft shipped two frontier models at Build 2026 — MAI-Thinking-1 and MAI-Code-1-Flash — built entirely without OpenAI data or distillation. The technical choices are interesting; the strategic signal is clearer: Microsoft is no longer content to be a reseller.
Tencent's Hy3 preview — a 295B MoE model with 21B active parameters, open-sourced under a community license — has quietly risen to the top of OpenRouter's usage rankings, outpacing Claude by over 50%. Almost nobody in Western ML circles has written about it. Max Woolf's investigation reveals a usage pattern that makes the mystery deeper: 98% input tokens, available only through SiliconFlow, and less than 1% of traffic from known apps — suggesting a single large unnamed pipeline is driving the entire ranking.
Salvatore Sanfilippo (antirez, Redis) released ds4: a single-model Metal inference engine for DeepSeek V4 Flash that deliberately rejects the general-framework approach. Asymmetric 2-bit quantization on MoE experts only gets a 280B-parameter model into 128 GB RAM with 26–36 t/s generation, 1M-token context, and disk-persisted KV cache on Apple Silicon.
A week after Qwen3.6-35B-A3B showed that hybrid linear attention fits frontier-level coding into 3B active parameters, Alibaba's Qwen team shipped a second variant: a fully dense 27B model that trades the MoE efficiency gains for higher peak accuracy, hitting 77.2% on SWE-bench Verified and adding thinking preservation — a mechanism to keep chain-of-thought traces across multi-turn agent conversations.
Qwen3.6-35B-A3B landed on April 16 under Apache 2.0 — 35 billion total parameters, 3 billion active per token, and a hybrid architecture that alternates Gated DeltaNet linear attention with standard attention blocks. It runs on a laptop, scores 73.4 on SWE-bench Verified, and the architecture is more interesting than the benchmark numbers alone suggest.
Arcee AI released Trinity Large Thinking on April 1 — the reasoning-optimized variant of their 400B sparse MoE, trained by a 30-person startup on 2,048 Nvidia B300 GPUs. It ranks #2 on PinchBench for agentic tasks at roughly 96% lower cost than the top model, under Apache 2.0. The architecture — 256 experts with 4 active per token — is worth understanding.