Qwen 4 and Kimi K3.1 Just Leaked All Over Arena!
Kimi just posted a video with "Model: Kimi K3.1" right on the screen, and Qwen 4 might already be on Arena under a fake name. I went through every leak, from a pull request that got renamed in 19 seconds to Alibaba's own Qwen 4 slides, and I'll tell you what's confirmed and what's just people guessing. 🔔 SUBSCRIBE TO BYTEFORWARD AI news, coding agents, model comparisons, benchmarks, and the things people are actually building: https://www.youtube.com/channel/UCGGHPOAzUaKsSc2yjsOeAFQ?sub_confirmation=1 What's confirmed and what isn't (as of October 23, 2026): Kimi showed K3.1 in its own video but hasn't given a date, price or benchmarks. Alibaba says Qwen 4 is in training. That Kibitz is K3.1 and Kalmia is Qwen 4 comes from community tokenizer tests, not from Arena or the companies. Release dates are single unverified claims. The Arena demos are the creators' own runs, and the costs are their reported numbers. A forum report says both models were pulled from Arena on the morning of Oct 23. CHAPTERS 0:00 Kimi just showed K3.1 0:29 What Kimi K3 is 0:54 The pi teaser and the website code 1:31 The pull request renamed in 19 seconds 2:13 Kimi Code's K3.1 switch 2:30 Kimi's official video 2:50 Kibitz, the mystery model on Arena 3:12 What people built with Kibitz 4:27 Qwen 4 is officially in training 5:01 The Qwen 4 code and Intel's 27B 5:31 Big or small? The Qwen plushies 5:45 Kalmia, and what people built with it 6:28 Same prompt, both models 6:51 When are they coming out? 7:16 My two cents KIMI K3.1 SOURCES Kimi's official video — @Kimi_Moonshot: https://x.com/Kimi_Moonshot/status/2113445757185606062 Kimi K3 model card: https://huggingface.co/moonshotai/Kimi-K3 Zhihu pi teaser (screenshot) — @MaxForAI: https://x.com/MaxForAI/status/2101254889296781439 k3d1-agent / make3d website code — @NFT_Chen: https://x.com/NFT_Chen/status/2111669736140570983 SGLang commit "Kimi-K3.1 support": https://github.com/sgl-project/sglang/commit/588d63659d9b17a0ebdf99df6885ccb614b8e1c5 SGLang commit, live DeepInfra K3.1 test data: https://github.com/sgl-project/sglang/commit/57caed08e56c04ef8cfdd167e9ee04f5b359b40c SGLang PR #45305 (now 404; timeline via GitHub's API): https://github.com/sgl-project/sglang/pull/45305 Kimi Code K3.1 switch config — @LuminaBench: https://x.com/LuminaBench/status/2112861576952676404 Kibitz and Kalmia tokenizer tests (screenshot) — @MaxForAI: https://x.com/MaxForAI/status/2113205199112196377 Kibitz vs GPT-6 Astra Minecraft — @ChrisGPT: https://x.com/ChrisGPT/status/2113180444858667485 Kibitz Japanese garden — @notjazii: https://x.com/notjazii/status/2113272272903610467 Kibitz 3D helicopter (exploded view, X-ray) — @LuminaBench: https://x.com/LuminaBench/status/2113186973363929470 Kibitz medieval voxel castle — @LuminaBench: https://x.com/LuminaBench/status/2113248472291852327 Kibitz 3D printer printing a vase — @SPAC89: https://x.com/SPAC89/status/2113109486965539137 Kibitz vs Claude Fable 5.1, jewel box — @SPAC89: https://x.com/SPAC89/status/2113136432936083808 Kibitz JS drawing with Kimi's mascot — @chetaslua: https://x.com/chetaslua/status/2113184816044949916 QWEN 4 SOURCES Alibaba Cloud press release (Qwen 4 in training): https://www.alibabacloud.com/en/press-room/alibaba-unveils-roadmap-on-full-stack-ai-strategy Apsara stage photo, "Qwen4 Coming Soon" — @testingcatalog (photo: 财闻): https://x.com/testingcatalog/status/2102324410468245529 Qwen 4 lineup slide — @AiBattle_: https://x.com/AiBattle_/status/2102246552475439118 Qwen3.8-Flash-Next model card: https://huggingface.co/Qwen/Qwen3.8-Flash-Next vLLM "qwen4" pull requests: https://github.com/vllm-project/vllm/pulls?q=is%3Apr+qwen4 Intel analytics-zoo PR #22 (Qwen4-27B): https://github.com/analytics-zoo/vllm-xpu-kernels/pull/22 "big or small?" — @QwenDevs: https://x.com/QwenDevs/status/2108764909798641737 "let's do both!" — @QwenDevs: https://x.com/QwenDevs/status/2108827211524608114 Kalmia drivable car — @LuminaBench: https://x.com/LuminaBench/status/2113209362047242655 Kalmia WebDev test — @LuminaBench: https://x.com/LuminaBench/status/2113190928915779594 Kalmia bike on a cow — @TimJayas: https://x.com/TimJayas/status/2113253316092448818 Kalmia drone racing game vs GPT-6.1 Sol — @LuminaBench: https://x.com/LuminaBench/status/2113245234180005906 Kalmia prism light machine — @SPAC89: https://x.com/SPAC89/status/2113196512217837677 BOTH MODELS, SAME PROMPT 3D helicopter, Kibitz vs Kalmia — @LuminaBench: https://x.com/LuminaBench/status/2113217029675085963 Pelican riding a bike, K3.1 vs Qwen 4 — @pengsonal: https://x.com/pengsonal/status/2113231142362964234 Both models gone from Arena (forum report, source @abhinavflac): https://linux.do/t/topic/3063332 Arena (where Kibitz and Kalmia were being tested): https://lmarena.ai/ #Qwen4 #Kimi #AI
