Subvolts take AI labs race ahead with new models, price cuts, and policy shifts. May 11, 2026 - Developers
- Learn about new model capabilities and potential pricing shifts impacting AI development tools.
- Business
- Understand how major AI labs are evolving their offerings and the competitive landscape.
- Everyday users
- Stay informed on the latest AI model updates and their implications for AI safety and policy.
This episode covers significant AI news, including new model releases and major company updates, providing a solid industry overview.
#244 - GPT-5.5 Instant, Grok 4.3, OpenAI vs Musk
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From Subvolts
Summary and analysis by Subvolts editorial, AI-assisted.
This episode of Last Week in AI features hosts Andrey Kurenkov and Jeremie Harris discussing major AI developments. OpenAI launched GPT-5.5 Instant, noting benchmark gains and cyber-risk increases. The show covers xAI's Grok 4.3 price cuts, Mistral's new models, and Anthropic's agent upgrades and SpaceX deal. Policy news includes details on the Musk-OpenAI trial and expanded government AI reviews.
AI labs released new powerful models like GPT-5.5 Instant and Grok 4.3. Companies are changing prices and adding features. There's also news about legal battles and government oversight of AI.
This episode offers a comprehensive roundup of significant AI news, beneficial for anyone tracking the rapid advancements and competitive landscape. It connects recent product launches and policy shifts from major labs like OpenAI, xAI, Mistral, and Anthropic to ongoing industry trends. Listeners will gain insight into how these developments impact AI safety, pricing, and market positioning, providing context for the current state of AI development and its regulatory environment.
- HostAndrey Kurenkov
- HostJeremie Harris
- Episode Title: #244 - GPT-5.5 Instant, Grok 4.3, OpenAI vs Musk
- Show: Last Week in AI
- Length: 115 minutes
- GPT-5.5 Instant: OpenAI released GPT-5.5 Instant as ChatGPT’s new default model, showing large benchmark gains and crossing a “high” cyber-risk threshold.
- Grok 4.3: xAI's Grok 4.3 price cuts and voice tools.
- Musk-OpenAI Trial: Key policy and security developments covered the Musk–OpenAI trial details.
Our 244th episode with a summary and discussion of last week's big AI news!
Recorded on 05/08/2026
Hosted by Andrey Kurenkov and Jeremie Harris
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:
- OpenAI released GPT-5.5 Instant as ChatGPT’s new default model, showing large benchmark gains and crossing a “high” cyber-risk threshold under its preparedness framework, while bio-safety results were mixed.
- OpenAI investigated and patched ChatGPT’s “goblin” obsession, attributing it to reinforcement-learning rewards that over-amplified playful creature metaphors in a nerdy persona that later bled across versions.
- Major industry moves included xAI’s Grok 4.3 price cuts and voice tools, Mistral’s unified Medium 3.5 model and Work mode, and Anthropic’s managed-agent upgrades alongside a surprise SpaceX compute deal and reports of a much higher Anthropic valuation.
- Key policy and security developments covered the Musk–OpenAI trial details, Pentagon AI deployments on classified networks, expanded U.S. government pre-release model reviews, and reports of NSA testing Anthropic’s Mythos on Microsoft software.
A thank you to our current sponsors:
- Box - visit Box.com/AI to learn more
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Timestamps:
- (00:00:10) Intro / Banter
- (00:01:14) News Preview
- (00:04:39) Response to listener comments
- Tools & Apps
- (00:13:40) OpenAI releases GPT-5.5 Instant, a new default model for ChatGPT | TechCrunch
- (00:18:23) ChatGPT Became So Obsessed With Goblins That OpenAI Had to Intervene
- (00:27:14) xAI launches Grok 4.3 at an aggressively low price and a new, fast, powerful voice cloning suite | VentureBeat
- (00:33:49) Mistral's new flagship Medium 3.5 folds chat, reasoning, and code into one model
- (00:39:28) Anthropic updates Claude Managed Agents with three new features - 9to5Mac
- (00:43:42) ElevenLabs Revamps AI Music Platform as Fan-Focused Service
- Applications & Business
- (00:44:57) Jargon decoded
- benchmark gains
- Andrey Kurenkov
- improvements in performance on standardized tests
- cyber-risk threshold
- Andrey Kurenkov
- a level of potential online danger
- bio-safety
- Andrey Kurenkov
- safety related to biological risks
- reinforcement-learning rewards
- Andrey Kurenkov
- feedback signals used to train AI to perform tasks
55 min
2 h 37Eric Jang – Building AlphaGo from scratch
WithEric Jang
Questions people ask
- What is GPT-5.5 Instant?
- GPT-5.5 Instant is ChatGPT's new default model, showing benchmark gains and crossing a high cyber-risk threshold.
- What are the latest updates from xAI and Anthropic?
- xAI announced Grok 4.3 price cuts and voice tools. Anthropic upgraded managed agents and reportedly secured a SpaceX compute deal.
Page generated Oct 19, 2026. Summaries are Subvolts' own; the audio, artwork and notes belong to Skynet Today.
