AI & dev updates: agent swarms, Opus 4.6, GPT-5.3-Codex, and the end of SaaS as we know it

Here’s what caught my attention from the past 48 hours (Feb 6-7, 2026):

🤖 Opus 4.6: The Agent Model Arrives

• Claude Opus 4.6 launches with agent teams, fast mode, and 1M context - SOTA on agentic coding benchmarks. Can plan before acting, catch its own mistakes, and coordinate parallel agents. This is the model designed for tasks that span hours, not minutes. ( @claudeai )
• Agent teams are experimental but available now - Set CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS and spawn multiple agents that coordinate via shared task lists and a mailbox system. I’ve been running these all weekend. ( @bcherny )
• Anthropic built a C compiler with agent teams - They mostly walked away. Two weeks later it compiled the Linux kernel. ( @AnthropicAI )
• Fast mode: 2.5x output speed - Same model, faster inference. $30/150 MTok (50% discount through Feb 16). Toggle with /fast in Claude Code. Heads up: switching mid-conversation costs more because you pay fast mode price for the full context. ( @claudeai )

🏎️ GPT-5.3-Codex Drops

• 57% SWE-Bench Pro, 76% TerminalBench, 64% OSWorld - 40% faster and <50% token usage vs 5.2-Codex. Mid-task steerability means you can course-correct while it’s working. The model was used to build itself. ( @sama )
• Codex crosses 1M users - Dedicated macOS app, integrated into Xcode 26.3, rate limits doubled for paid plans through April. ( @sama )

🐝 Agent Swarms Go Production

• Reverse-engineering Claude Code to save $200/day - Stan Girard figured out Claude Code’s filesystem-based agent protocol and built a REST API + TypeScript SDK around it. Uses his $200/month Max subscription instead of burning $200/day on API calls. Anthropic hasn’t commented. ( @_StanGirard )
• Local agent swarms on a single GPU, no internet - Qwen3-Coder-Next on one GB10 GPU. 100 tokens/sec generation, 17,871 tokens/sec read, 256k context. No cloud, no quota anxiety. ( @iotcoi )
• Anthropic PMs don’t write PRDs anymore - They use Claude Code to build the first version, dogfood it for weeks, then ship. This workflow took them from $1B to $9B run-rate in 12 months. ( @aakashgupta )

💰 The SaaS Reckoning

• Goldman Sachs: SaaS has a 5-year shelf life - Application software will hit $780B by 2030 but agents will capture 60%+ of the economics. Current SaaS multiples are wrong. ( @aakashgupta )
• OpenAI launches Frontier: AI coworkers for enterprise - Agents that connect CRM, data, ticketing, and internal tools. Sam’s framing: “People will manage teams of agents to do very complex things.” ( @sama )
• “Ask what your token budget will be” - Ethan Mollick says if you’re considering a job offer, ask about your token budget. AI access is now a comp consideration. ( @emollick )

🌟 The Tweet That Says It All

• Tobi Lütke endorses Pi over every funded AI coding tool - Pi has four tools: Read, Write, Edit, Bash. No MCP, no sub-agents, no plan mode. Can write plugins for itself as you use it. Shopify’s CEO calling a solo dev’s project “the most interesting agent harness” is a statement about simplicity as strategy. ( @tobi )

📋 Honorable Mentions

• Qwen3-Coder-Next - First open-weight coding agent model, 80B params, trained on 800K verifiable tasks
• Cloudflare R2 Local Uploads - Up to 75% faster uploads, <100ms reported
• Cloudflare Queues on free plan - 10k queue ops/day included in Workers free tier
• X API pay-per-use - New Console, XDK, and MCP for indie builders. I set this up and it’s working great.
• Xcode 26.3 gets Codex + Claude SDK - Apple sees agentic dev workflows as table stakes
• ESLint v10 - Flat config only, eslintrc is gone
• Postgres 18 OAuth 2.0 - OAuth for database auth
• ElevenLabs raises $500M at $11B - Voice AI is a category now
• Excalidraw MCP App - Natural language diagrams in Claude chat via MCP Apps protocol
• dbt Agent Skills - 9 auto-loading skills, key insight: MCP = tools, Skills = knowledge
• Nvidia Parakeet - 83ms transcription on M3, 26x faster than Lightning Whisper
• Chatterbox Turbo - Open source voice cloning in 5 seconds, <150ms latency
• Anthropic Startup Program - Up to $25K in credits, no VC required
• Ethereum ERC-8004 - Agent payment standard by Ethereum Foundation, MetaMask, Google, Coinbase
• Waymo World Model - Photorealistic simulation for rare edge cases, built on Genie 3
• Claude Code /insights - Analyzes your past month of usage and gives workflow suggestions
• OpenRouter free router - Routes to free LLMs matched to your request
• awesome-llm-apps - 92.6k stars, copy-paste code for 9 categories of LLM apps

This curated summary covers 182 liked and bookmarked tweets from Feb 6-7, 2026. The meta-story: we’re moving from “AI as assistant” to “AI as autonomous workforce” faster than most realize.