# 📆 Open source just pulled up to Opus 4.6 — at 1/20th the price

Page: https://stenobird.com/podcast/thursdai-the-top-ai-news-from-the-past-week-6519604/open-source-just-pulled-up-to-opus-4-6-at-1-20th-the-price
Text version: https://stenobird.com/podcast/thursdai-the-top-ai-news-from-the-past-week-6519604/open-source-just-pulled-up-to-opus-4-6-at-1-20th-the-price.md
Podcast: [ThursdAI - The top AI news from the past week](https://stenobird.com/podcast/thursdai-the-top-ai-news-from-the-past-week-6519604)
Published: 2026-02-13T03:34:09+00:00
Episode link: https://sub.thursdai.news/p/thursdai-glm-5-minimax-25-seedance
Audio file: https://prfx.byspotify.com/e/api.substack.com/feed/podcast/187812653/e43899d47d43cd3d507e83a6516247b7.mp3
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JSON: https://stenobird.com/v1/public/podcasts/thursdai-the-top-ai-news-from-the-past-week-6519604/episodes/open-source-just-pulled-up-to-opus-4-6-at-1-20th-the-price
Duration seconds: 5295

## Resource

Hey dear subscriber, Alex here from W&B, let me catch you up! This week started with Anthropic releasing /fast mode for Opus 4.6 , continued with ByteDance reality-shattering video model called SeeDance 2.0 , and then the open weights folks pulled up! Z.ai releasing GLM-5 , a 744B top ranking coder beast, and then today MiniMax dropping a heavily RL’d MiniMax M2.5 , showing 80.2% on SWE-bench, nearly beating Opus 4.6! I’ve interviewed Lou from Z.AI and Olive from MiniMax on the show today back to back btw, very interesting conversations, starting after TL;DR! So while the OpenSource models were catching up to frontier, OpenAI and Google both dropped breaking news (again, during the show), with Gemini 3 Deep Think shattering the ArcAGI 2 (84.6%) and Humanity’s Last Exam (48% w/o tools)... Just an absolute beast of a model update, and OpenAI launched their Cerebras collaboration, with GPT 5.3 Codex Spark , supposedly running at over 1000 tokens per second (but not as smart) Also, crazy week for us at W&B as we scrambled to host GLM-5 at day of release, and are working on dropping Kimi K2.5 and MiniMax both on our inference service ! As always, all show notes in the end, let’s DIVE IN! ThursdAI - AI is speeding up, don’t get left behind! Sub and I’ll keep you up to date with a weekly catch up Open Source LLMs Z.ai launches GLM-5 - #1 open-weights coder with 744B parameters ( X , HF , W&B inference ) The breakaway open-source model of the week is undeniably GLM-5 from Z.ai (formerly known to many of us as Zhipu AI). We were honored to have Lou, the Head of DevRel at Z.ai , join us live on the show at 1:00 AM Shanghai time to break down this monster of a release. GLM-5 is massive, not something you run at home (hey, that’s what W&B inference is for!) but it’…

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