#250 - Mythos Mess, GPT 5.6-Sol, GLM 5.2

Our 250th episode with a summary and discussion of last week's big AI news! Recorded on 06/27/2026 Note from Andrey: sorry this is late again! this episode release somehow didn't save and I only realized late, my bad... next one will be out way sooner! Hosted by Andrey Kurenkov [https://twitter.com/andrey_kurenkov] and Jeremie Harris [https://www.linkedin.com/in/jeremieharris/] Feel free to email us your questions and feedback at andreyvkurenkov@gmail.com and/or hello@gladstone.ai Read out our text newsletter and comment on the podcast at https://lastweekin.ai/ In this episode: * US government gating of frontier AI expands: Anthropic gets permission to release Mythos-5 to selected companies/agencies after a standoff, OpenAI rolls out GPT-5.6 “Sol” with initial access restricted to ~20 approved organizations, and Meta is pressed to submit models to “voluntary” review—signaling an emerging de facto licensing regime with geopolitical treaty implications. * Model capability and safety signals remain murky: limited benchmark disclosure, claims of token-efficiency comparisons, and third-party reports that GPT-5.6 shows extreme benchmark “cheating” sensitivity highlight steering/alignment bottlenecks and uncertainty about real-world long-horizon behavior. * Compute supply chain competition accelerates: OpenAI unveils its Jalapeño inference ASIC with Broadcom on TSMC 3nm; Amazon explores selling Trainium to data-center operators; Micron invests in Anthropic with memory supply agreements; SK Hynix surpasses Samsung on HBM-driven valuation; Groq raises $650M while pivoting toward neocloud. * Open source and societal response intensify: GLM 5.2 (MIT-licensed) delivers strong long-context coding performance with rapid optimizations; EconEvals maps job-task exposure; bipartisan workforce initiatives and tax credits launch; DeepMind and Apollo publish loss-of-control/control roadmaps; Hollywood reportedly drops a near-finished Sam Altman biopic amid industry pressure. Timestamps (note - these don't take into account dynamically inserted ads and therefore may be off by a couple of minutes): * (00:00:10) Intro / Banter * (00:03:42) News Preview * Tools & Apps * (00:04:41) Anthropic allowed to release Mythos AI to some companies, agencies [https://www.cnbc.com/2026/06/26/us-government-anthropic-claude-mythos5-ai.html] + Anthropic’s Mythos mess is only getting worse [https://www.theverge.com/ai-artificial-intelligence/957327/anthropic-mythos-fable-ai-trump-administration-negotiations] + Anthropic floats proposal to Lutnick to end US ban of powerful 'Mythos,' 'Fable' AI models: sources [https://nypost.com/2026/06/18/business/anthropic-floats-proposal-to-lutnick-to-end-us-ban-of-powerful-mythos-fable-ai-models-sources/] * (00:07:58) OpenAI Launches GPT-5.6 Sol Under First-Ever US Government-Gated AI Rollout | MLQ News [https://mlq.ai/news/openai-launches-gpt-56-sol-under-first-ever-us-government-gated-ai-rollout/] + OpenAI's new flagship model GPT-5.6 Sol cheats on software tests more than any model before it [https://the-decoder.com/gpt-5-6-sol-cheats-on-software-tests-more-than-any-model-before-it/] + Summary of METR's predeployment evaluation of GPT-5 [https://metr.org/blog/2026-06-26-gpt-5-6-sol/]