Episode 2026-07-08↗
AI:AM LIVE — July 8, 2026 — LTX's Zeev Farbman on Open World Models, GPT-5.6 Cleared for Launch, and Hosts vs. the AI Superforecasters
A three-act Wednesday show. Nathan and Prakash opened with the machinery around the models: all three GPT-5.6 models (Sol, Terra, Luna) were cleared to launch publicly the next day, July 9, after Commerce's CAISI review — making GPT-5.6 the first frontier model to graduate the June EO's pre-release gate rather than be stopped by it (as of air time it remained a ~20-partner API preview, not GA) — the same 48 hours OpenAI's exhibition model beat the human field at the AtCoder World Tour Finals, with AtCoder's own president conceding 'total defeat to AI.' The hosts then took on Anthropic's 'global workspace' paper (Jul 6, 2026) — a privileged, small slice of Claude's activity that supports multi-step reasoning and experiential language, and the consciousness-framing fight it ignited from OpenAI's Boris Power to Neel Nanda and Eleos AI — plus Replit's claim to have 'closed the loop' on a self-improving agent read through Lilian Weng's harness-engineering lens, and a same-week regulatory split-screen: Beijing weighing export curbs on China's top models (open weights included, per Reuters Jul 7) while Illinois signed SB 315, first-in-nation annual safety audits for frontier developers, with Coefficient Giving's reported $160M grant to Geoffrey Irving's Resolution rounding out the block. Then Zeev Farbman — co-founder and CEO of LTX, the Facetune founder who split Lightricks in two on June 1, 2026 to go all-in on open world models — joined for a 48-minute conversation built around the open-weights bet in AI video: why he took ~250 people and the models while Facetune kept the cash cow, the Red Hat-style licensing math of giving away weights free under $10M ARR, LTX-2.3's #1 open-weights ranking on Video Arena (Jun 30, 2026) versus the closed frontier's compute advantage, video models as world models with implicit physics, robotics teams fine-tuning owned weights inside their own environments, and what responsible deployment means for open video. Finally, the longest segment of the day: 'Predictions & FutureSearch,' the hosts-versus-the-AI-superforecasters rematch teased on Monday's Dan Schwarz episode — a 'Guess the Market' round with Nathan and Prakash calibrating against live prediction-market odds on AI questions and comparing their guesses to FutureSearch's AI forecasting agent.
Guests·Zeev Farbman
Episode 2026-07-07↗
AI:AM LIVE — July 7, 2026 — Exploring the J-Space: Anthropic's Global-Workspace Paper, a No-Guest Sensemaking Experiment, and Pangram Labs Put to the Test
A hosts-only experiment in public sensemaking: with Anthropic's massive new J-Space interpretability release just out — a ~150-page paper plus ~50 pages of commentary, summaries, and interactive demos — Nathan and Prakash spent nearly two hours working through it live with no expert guests, pausing to ask Claude for help and pulling up the paper's visualizations on screen. The headline: applying a 'Jacobian lens' to a transformer's activations reveals an emergent global-workspace-like region — the J-Space — at intermediate depths where the model's higher-order reasoning becomes legible: watch a model silently solve multi-step arithmetic in a single forward pass while copying an unrelated sentence, or 'concentrate on citrus fruits' on command without emitting a token. Nathan's optimistic read: because ablating the J-Space destroys exactly the capabilities takeover scenarios require — strategic multi-step reasoning and theory of mind — cheap J-Space monitoring adds 'another 9' to defense-in-depth ('a tough day for the stochastic parrot crowd'), and interpretability keeps surprising to the upside only three years after toy models of superposition. The hosts worked through the counterfactual-reflection-training result (training the model to give an account of its principles mid-task loads those concepts into the J-Space and improves behavior even when unobserved), the sleeper-agent result (concepts like 'secretly' and 'fraud' visible on the first token of a hidden-goal model's response), Anthropic's three outside review tracks (neuroscientists, Eleos AI on welfare and moral patienthood, and Neel Nanda calling it a starting point for a research program), the consciousness question both hosts noted everyone is carefully not answering, and Daniel Kokotajlo's 'a few dozen more advances like this' — which Nathan pushed back on as too pessimistic. Then a follow-up the hosts had promised: Nathan ran roughly 400 of his Cognitive Revolution intro essays through Pangram Labs' AI-text detector and walked through the receipts on screen — two flagged essays were admitted AI reads, one 0%-human score was 'fair enough,' but one essay Pangram scored 0% human came with a 50-minute Google Docs edit history showing him rewriting nearly every section: 'trust it as a consumer, be more cautious as a judge.' Prakash countered with the Chamath episode — a 100%-AI post Elon replied to before anyone checked — and argued the window in which anyone cares about AI-written text may close within the year. The FutureSearch prediction-market quiz planned for the day was deferred on-air to the next morning's show — with FutureSearch itself competing against the hosts.
Guests·Guests announced soon