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. Feel free to email us your questions and feedback at contact@lastweekinai.com and/or hello@gladstone.ai

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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.

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
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

#207 - GPT 4.1, Gemini 2.5 Flash, Ironwood, Claude Max

Last Week in AI