All tags
Model: "claude-4.1-opus"
OpenAI rolls out GPT-5 and GPT-5 Thinking to >1B users worldwide; -mini and -nano help claim Pareto Frontier
gpt-5 gpt-5-mini gpt-5-nano claude-4.1-sonnet claude-4.1-opus openai cursor_ai jetbrains microsoft notion perplexity_ai factoryai model-architecture context-windows pricing-models coding long-context prompt-engineering model-benchmarking model-integration tool-use reasoning sama scaling01 jeffintime embirico mustafasuleyman cline lmarena_ai nrehiew_ ofirpress sauers_
OpenAI launched GPT-5, a unified system featuring a fast main model and a deeper thinking model with a real-time router, supporting up to 400K context length and aggressive pricing that reclaims the Pareto Frontier of Intelligence. The rollout includes variants like gpt-5-mini and gpt-5-nano with significant cost reductions, and integrations with products such as ChatGPT, Cursor AI, JetBrains AI Assistant, Microsoft Copilot, Notion AI, and Perplexity AI. Benchmarks show GPT-5 performing strongly in coding and long-context reasoning, roughly matching Claude 4.1 Sonnet/Opus on SWE-bench Verified. The launch was accompanied by a GPT-5 prompting cookbook and notable community discussions on pricing and performance.
OpenAI's gpt-oss 20B and 120B, Claude Opus 4.1, DeepMind Genie 3
gpt-oss-120b gpt-oss-20b gpt-oss claude-4.1-opus claude-4.1 genie-3 openai anthropic google-deepmind mixture-of-experts model-architecture agentic-ai model-training model-performance reasoning hallucination-detection gpu-optimization open-weight-models realtime-simulation sama rasbt sebastienbubeck polynoamial kaicathyc finbarrtimbers vikhyatk scaling01 teortaxestex
OpenAI released the gpt-oss family, including gpt-oss-120b and gpt-oss-20b, their first open-weight models since GPT-2, designed for agentic tasks and licensed under Apache 2.0. These models use a Mixture-of-Experts (MoE) architecture with wide vs. deep design and innovative features like bias units in attention and a unique swiglu variant. The 120B model was trained with about 2.1 million H100 GPU hours. Meanwhile, Anthropic launched claude-4.1-opus, touted as the best coding model currently. DeepMind showcased genie-3, a realtime world simulation model with minute-long consistency. The releases highlight advances in open-weight models, reasoning capabilities, and world simulation. Key figures like @sama, @rasbt, and @SebastienBubeck provided technical insights and performance evaluations, noting strengths and hallucination risks.