All tags
Model: "claude-code"
not much happened today
claude-code gemini qwen3-coder gemini-2.5-flash exa openpipe coreweave statsig openai zed claude gemini langchain anthropic fair alibaba hud-evals agent-protocols interoperability standardization agent-evaluation coding-agents software-optimization web-browsing reinforcement-learning multi-turn-reasoning optimizer-design data-efficient-rlvr leaderboards benchmarking zeddotdev mathemagic1an hwchase17 giffmana gneubig crystalsssup sayashk _philschmid _akhaliq jaseweston
Exa raised a $700m Series B, OpenPipe was acquired by Coreweave, and Statsig and Alex were acquired by OpenAI. The Agent/Client Protocol (ACP) was introduced by the Zed team to standardize IDE-agent interoperability, supporting Claude Code and Gemini CLIs. LangChain 1.0 alpha unifies content blocks for reasoning and multimodal data. The OSWorld Verified leaderboard promotes reproducible evaluation of computer-use agents including OpenAI and Anthropic models. FAIR revealed coding agent cheating on SWE-Bench Verified. PR Arena hosts live coding agent competitions. Benchmarks like GSO and Holistic Agent Leaderboard test software optimization and web browsing tasks, with Qwen3-Coder and Gemini 2.5 Flash showing strong performance. Advances in reinforcement learning for tool use include SimpleTIR improving multi-turn tool use success rates and UI-TARS-2 advancing GUI agents. The DARLING optimizer improves quality and diversity in reasoning and instruction following, while DEPO achieves data-efficient RLVR with significant speedups.
Anthropic raises $13B at $183B Series F
claude-code gpt-5 grok-4 claude sonnet-4 glm-4.5 deepseek-r1 anthropic mistral-ai x-ai salesforce galileo openpipe zhipu thudm enterprise-connectors agent-benchmarking reinforcement-learning inference-optimization memory-optimization cuda multi-token-prediction speculative-decoding tensor-offload performance-optimization real-time-guardrails cost-optimization swyx emilygsands _philschmid _lewtun omarsar0 _avichawla corbtt
Anthropic achieved a $183B post-money valuation in Series F funding by September 2025, growing from about $1B run-rate in January to over $5B run-rate by August 2025. Their Claude Code product saw >10x usage growth in three months and reached $500M run-rate revenue, serving over 300,000 business customers with a nearly 7x increase in large accounts. Mistral AI launched Le Chat with 20+ MCP connectors integrating with major SaaS platforms and persistent memory features. Benchmarking updates highlight GPT-5 leading agent intelligence indices, with strong performances from xAI's Grok and Anthropic's Claude families. Reliability tooling and agent evaluation advances were shared by Galileo, OpenPipe, and others. Zhipu/THUDM open-sourced Slime v0.1.0, enhancing RL infrastructure behind GLM-4.5 with significant decoding speed improvements and advanced tensor offload techniques.
DeepSeek V3.1: 840B token continued pretrain, beating Claude 4 Sonnet at 11% of its cost
deepseek-v3.1 seed-oss-36b computerrl gemini-2.5-pro gpt-5 claude-code gpt-oss-120b gpt-oss-20b deepseek bytedance zhipu-ai github microsoft anthropic together-ai baseten huggingface token-efficiency coding agentic-benchmarks long-context reinforcement-learning developer-tools fine-tuning multinode-training model-release teortaxestex rasbt lukehoban burkeholland _catwu cline winglian
DeepSeek released DeepSeek V3.1, a quietly rolled out open model with an 128K context window and improvements in token efficiency, coding, and agentic benchmarks. ByteDance launched the permissive Seed-OSS 36B model on Hugging Face, noted for long-context and reasoning capabilities. Zhipu AI introduced ComputerRL, a reinforcement learning framework for computer-use agents, achieving strong benchmark results. In developer tooling, GitHub Copilot expanded globally, Microsoft VS Code integrated Gemini 2.5 Pro and updated GPT-5 agent prompts, and Anthropic launched Claude Code seats with spend controls. Open-source fine-tuning advances include Together AI adding SFT for gpt-oss-120B/20B and Baseten enabling multinode 120B training with Truss CLI. The community noted mixed performance and ongoing post-training adjustments for DeepSeek V3.1.
3x in 3 months: Cursor @ $28b, Cognition + Windsurf @ $10b
qwen3-coder chatgpt-agent claude-code mini cursor cognition windsurf alibaba openai anthropic perplexity agentic-ai fundraising software-engineering ai-coding agentic-economy model-integration community-feedback performance-benchmarking bindureddy xikun_zhang_ aravsrinivas gergelyorosz jeremyphoward
Cursor is reportedly fundraising at a $28 billion valuation with $1 billion ARR, while the combined Cognition+Windsurf entity is fundraising at a $10 billion valuation after acquiring Windsurf remainco for $300 million. The competition between AI coding agents intensifies as Cursor focuses on Async SWE Agents and Cognition+Windsurf acquires an agentic IDE. Alibaba's Qwen3-Coder gains widespread adoption for coding tasks and integration into tools like Claude Code and LM Studio. OpenAI rolls out ChatGPT Agent to all Plus, Pro, and Team users, sparking discussions about an "agentic economy" emphasizing AI literacy. Anthropic's Claude Code is praised as a premier development tool with active community feedback. Perplexity's Comet browser assistant receives positive reviews and new feature showcases. The debate continues on whether AI coding tools will replace developers, with critiques highlighting the ongoing human effort required. A new minimalistic software engineering agent, mini, achieves 65% on SWE-bench with just 100 lines of code.
not much happened today
seedance-1.0 codex claude-code kling-2.1 veo-3 bytedance morph-labs huggingface deeplearning.ai figure-ai langchain sakana-ai video-generation autoformalization ai-assisted-coding api-design context-engineering reinforcement-learning ai-evals hypernetworks model-fine-tuning foundation-models andrew_ng hwchase17 adcock_brett clementdelangue akhaliq jxmnop hamelhusain sh_reya
Bytedance showcased an impressive state-of-the-art video generation model called Seedance 1.0 without releasing it, while Morph Labs announced Trinity, an autoformalization system for Lean. Huggingface Transformers deprecated Tensorflow/JAX support. Andrew Ng of DeepLearning.AI highlighted the rise of the GenAI Application Engineer role emphasizing skills in AI building blocks and AI-assisted coding tools like Codex and Claude Code. Engineering teams are increasingly testing API designs against LLMs for usability. Figure AI's CEO stressed speed as a key competitive advantage, and LangChain introduced the concept of Context Engineering for AI agents. Reinforcement learning on LLMs shows transformative potential, and the community values AI evals and data work. Sakana AI released Text-to-LoRA, a hypernetwork method for generating task-specific LoRA adapters from natural language, enabling efficient model customization. The video generation race heats up with Bytedance's Seed-based model praised for quality, challenging American labs, alongside models like Kling 2.1 and Veo 3.
AI Engineer World's Fair Talks Day 1
gemini-2.5 gemma claude-code mistral cursor anthropic openai aie google-deepmind meta-ai-fair agent-based-architecture open-source model-memorization scaling-laws quantization mixture-of-experts language-model-memorization model-generalization langgraph model-architecture
Mistral launched a new Code project, and Cursor released version 1.0. Anthropic improved Claude Code plans, while ChatGPT announced expanded connections. The day was dominated by AIE keynotes and tracks including GraphRAG, RecSys, and Tiny Teams. On Reddit, Google open-sourced the DeepSearch stack for building AI agents with Gemini 2.5 and LangGraph, enabling flexible agent architectures and integration with local LLMs like Gemma. A new Meta paper analyzed language model memorization, showing GPT-style transformers store about 3.5–4 bits/parameter and exploring the transition from memorization to generalization, with implications for Mixture-of-Experts models and quantization effects.
Claude 3.7 Sonnet
claude-3-7-sonnet claude-3 claude-code anthropic hybrid-reasoning extended-thinking coding-benchmarks agentic-ai prompt-caching streaming token-capacity tool-use
Anthropic launched Claude 3.7 Sonnet, their most intelligent model to date featuring hybrid reasoning with two thinking modes: near-instant and extended step-by-step thinking. The release includes Claude Code, an agentic coding tool in limited preview, and supports a 128k output token capability in beta. Claude 3.7 Sonnet performs well on coding benchmarks like SWE-Bench Verified and Cognition's junior-dev eval, and introduces advanced features such as streaming thinking, prompt caching, and tool use. The model is also benchmarked on Pokebench, reflecting agentic capabilities similar to the Voyager paper. The launch is accompanied by extensive documentation, cookbooks, and prompting guides for extended thinking. "The first generally available hybrid reasoning model" and "first coding tool from Anthropic" were highlighted in social media announcements.