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- Talking dolphins & more (April 15, 2025)
Talking dolphins & more (April 15, 2025)
GPT-4.1 emerges after GPT-4.5, dolphins are chatting with us, and China’s Seaweed is dominating video AI.

Hey friends,
Today’s AI news feels like a sci-fi fever dream (in the best way). OpenAI’s new model has a name that makes zero sense, Google is trying to talk to dolphins, and China just dropped a video AI that might outpace the West on efficiency alone.
Let’s break it down, byte by byte.
⚙️ AGENTIC FOUNDATIONS
📦 OpenAI drops GPT-4.1 — and it’s API-only, baby
OpenAI’s new GPT-4.1 family includes Mini and Nano versions
Supports 1M token context (that’s like 8 React codebases worth)
Cheaper, faster, better at coding, instruction following, and long-term memory
OpenAI is phasing out 4.5 and punting GPT-5 past May
4.1 Nano = their fastest and cheapest model yet
Bonus: It’s 26% cheaper than GPT-4o
🔬 AI models make new discoveries — not just summarize them
Rumor: OpenAI will release o3 and o4-mini models this week
These “reasoning” models may be able to invent scientific ideas
Could cost up to $20K/month for enterprises
Early testers say they can detect pathogens, design recycling experiments, and more
🌊 Under The Sea
🎥 ByteDance’s Seaweed is crushing it
7B parameter video model that punches above its weight
Dominates in image-to-video and multi-shot storytelling
Outperforms models like Sora despite being smaller
Focus on realistic human motion and lip sync
🐬 Google wants to talk to dolphins. Literally.
DolphinGemma is an AI model trained on dolphin calls
Uses Pixel 9-based underwater CHAT devices
Designed with Georgia Tech to decode vocal patterns
Could open up true interspecies communication
Open-sourcing this summer
⚒️ NEW TOOLS
🛠️ 5 AI tools worth trying this week
Pippit: Design marketing content with no skills required
Sherlock: Catches AI cheating during interviews
Video Ocean: Turn ideas into animated video scenes
Kintsugi: Handles your sales tax like a chill accountant
iAsk AI: No-login answer engine with scary-good precision
💡Also trending:
ChatGPT adds full memory recall across chats
Canva’s AI suite now handles everything visual
Appsmith Agents: Secure, embedded data-connected agents
Google Classroom's AI now autogenerates quizzes
Meta's training its next LLM on EU public content (you can opt out... maybe)
🧪 PROMPT OF THE DAY
Collaboration Mastermind Mode
Prompt: Help me improve team collaboration and delegation for a project I’m leading. Break down how I can assign tasks based on individual strengths, keep everyone aligned without micromanaging, and maintain momentum. Include creative delegation techniques like "delegation poker" or rotating leadership roles.
⚡ TL;DR
OpenAI 4.1 is cheaper, smarter, longer-winded, and totally API-focused
New models (o3, o4-mini) may invent science — but you’ll need deep pockets
Seaweed from ByteDance is a quiet beast in the video AI space
DolphinGemma may help us decode dolphin speech (and we’re into it)
AI Tools are coming for your quizzes, sales tax, and job interviews
See you tomorrow.
— Chris