Donc, OpenAI a décidé de retirer GPT-4.5 (dans l'API) plus tôt que prévu. Je ne pense pas que ce soit un gros problème, car il n'était pas très populaire à cause de son coût. Mais quand même, il offrait : moins d’hallucinations, d'excellentes performances en écriture créative,
BIG TECH
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ByteDance Seaweed: Efficient 7B Video AI Model Released
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TikTok parent ByteDance just dropped Seaweed, a hyper-efficient 7B-param video AI
— Rowan Cheung (@rowancheung) 15 avril 2025
—Supports text-to-video, image-to-video, and audio-driven synthesis
—Clips up to 20s
—Matches or outperforms larger models like Sora, Kling 1.6, and Veopic.twitter.com/gkKxPa8OL3TikTok parent ByteDance just dropped Seaweed, a hyper-efficient 7B-param video AI —Supports text-to-video, image-to-video, and audio-driven synthesis
—Clips up to 20s
—Matches or outperforms larger models like Sora, Kling 1.6, and Veo -

Hugging Face Acquires Pollen Robotics for Open Humanoid Development
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Hugging Face acquired Pollen Robotics, a French startup building open-source humanoids
— Rowan Cheung (@rowancheung) 15 avril 2025
Pollen is already selling Reachy 2, an open and VR-compatible humanoid for research, education, and embodied AI
A big move from HF in open robotics!pic.twitter.com/PUyCqLvyABHugging Face acquired Pollen Robotics, a French startup building open-source humanoids Pollen is already selling Reachy 2, an open and VR-compatible humanoid for research, education, and embodied AI A big move from HF in open robotics!
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Google Releases DolphinGemma AI for Dolphin Vocalization Generation
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Google released DolphinGemma, an AI that can generate dolphin vocalizations The system analyzes dolphin whistles and sounds to identify patterns and predict subsequent sounds! Set to be open-sourced soon!
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OpenAI Releases GPT-4.1 Models with Enhanced Developer Capabilities
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OpenAI released GPT-4.1, 4.1 Mini, and the ultra-fast 4.1 Nano—all designed for devs — Each model beats GPT-4o and 4o mini on dev tasks
— 1M token context windows
— GPT-4.1 scored 55% on SWE-Bench Verified
— Starting at $0.10/0.40 per million I/O tokens -
OpenAI Releases Three GPT-4.1 Models with 1M Token Context
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TODAY'S AI NEWS: OpenAI just dropped three GPT-4.1 models for devs—API-only and packing a jaw-dropping 1M-token context window. Plus, more news from Google, Hugging Face, ByteDance, SSI, and LM Arena. Here's everything you need to know:
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GPT 4.1 Launch with Developers: Model Names and Overview
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GPT 4.1 with @michpokrass and @j_mcgraph
! https://
latent.space/p/quasar Part 1
00:00:00 – Introduction and Guest Welcome
00:00:57 – GPC 4.1 Launch Overview
00:01:54 – Developer Feedback and Model Names
00:02:53 – Model Naming and Starry Themes
00:03:49 – Confusion Over GPC 4.1 vs -

OpenAI Launches GPT-4.1 with Enhanced Coding and Long Context
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Now on Poe: GPT-4.1, mini, and nano! GPT-4.1 is OpenAI’s new flagship model with significantly improved coding skills, long context (1M tokens), and improved instruction following. (1/3)
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Gemini 2.5 Pro Ranks #1 on LMArena with Google Search
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Gemini 2.5 Pro ranks #1 on the LMArena search arena (when powered by grounding with Google Search) right out of the box!
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FTC Investigates Facebook Antitrust Claims in Social Networking
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Facebook is getting investigated by FTC for anti-trust in social networking. They claim it has ~no competitors. It got a government witness to agree on stand that ~all usage of their core apps counts as social networking. FB then screen grabs common use cases on its apps.