Last Week in AI

Our 207th episode with a summary and discussion of last week's big AI news!
Recorded on 04/14/2025

Hosted by Andrey Kurenkov and Jeremie Harris.
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In this episode:

OpenAI introduces GPT-4.1 with optimized coding and instruction-following capabilities, featuring variants like GPT-4.1 Mini and Nano, and a million-token context window.
Concerns arise as OpenAI reduces resources for safety testing, sparking internal and external criticisms.
XAI's newly launched API for Grok 3 showcases significant capabilities comparable to other leading models.
Meta faces allegations of aiding China in AI development for business advantages, with potential compliances and public scrutiny looming.


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Timestamps + Links:

Tools & Apps
(00:03:13) OpenAI’s new GPT-4.1 AI models focus on coding
(00:08:12) ChatGPT will now remember your old conversations
(00:11:16) Google’s newest Gemini AI model focuses on efficiency
(00:14:27) Elon Musk’s AI company, xAI, launches an API for Grok 3
(00:18:35) Canva is now in the coding and spreadsheet business
(00:20:31) Meta’s vanilla Maverick AI model ranks below rivals on a popular chat benchmark
Applications & Business
(00:25:46) Ironwood: The first Google TPU for the age of inference
(00:34:15) Anthropic rolls out a $200-per-month Claude subscription
(00:37:17) OpenAI co-founder Ilya Sutskever’s Safe Superintelligence reportedly valued at $32B
(00:40:20) Mira Murati’s AI startup gains prominent ex-OpenAI advisers
(00:42:52) Hugging Face buys a humanoid robotics startup
(00:44:58) Stargate developer Crusoe could spend $3.5 billion on a Texas data center. Most of it will be tax-free.
Projects & Open Source
(00:48:14) OpenAI Open Sources BrowseComp: A New Benchmark for Measuring the Ability for AI Agents to Browse the Web
Research & Advancements
(00:56:09) Sample, Don't Search: Rethinking Test-Time Alignment for Language Models
(01:03:32) Concise Reasoning via Reinforcement Learning
(01:09:37) Going beyond open data – increasing transparency and trust in language models with OLMoTrace
(01:15:34) Independent evaluations of Grok-3 and Grok-3 mini on our suite of benchmarks
Policy & Safety
(01:17:58) OpenAI countersues Elon Musk, calls for enjoinment from ‘further unlawful and unfair action’
(01:24:33) OpenAI slashes AI model safety testing time
(01:27:55) Ex-OpenAI staffers file amicus brief opposing the company’s for-profit transition
(01:32:25) Access to future AI models in OpenAI’s API may require a verified ID
(01:34:53) Meta whistleblower claims tech giant built $18 billion business by aiding China in AI race and undermining U.S. national security