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StepFun opens Step 5 Preview API: 600B MoE at $1/$2.70 per M tokens

StepFun opened API access to Step 5 Preview on Sept 20: a proprietary 600B sparse MoE (27B active) with a 1M-token context, vision input, and Artificial Analysis pricing of $1/$2.70 per million tokens (Intelligence Index 44). Company-reported coding scores still trail GPT-6 Astra and Claude Opus 5 on several benches; open weights are planned for Oct 15.

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Gauge open-sources a CLI that runs real coding agents against your docs, skills and CLI to find where they get stuck

Shown on HN Nov 4 under MIT, npm install g @withgauge/cli runs Claude Code, Codex, Pi or OpenCode in fresh local Docker sessions on tasks you define, flags friction like blocking interactive commands or deprecated APIs, and retests your fixed docs or skills before you publish, with no Gauge account needed. Testing hosted docs, authenticated MCPs and APIs needs its hosted mode (Show HN)…

Atlas gives your coding agent a hidden second macOS desktop so it can click and type while you keep working

Shown on HN Nov 4, the free MIT tool sets up a separate helper login on your Mac where Claude Code, Codex, Cursor, OpenCode or Pi open apps, click controls by name and bring back screenshots, never touching your own screen, mouse or keyboard. It's not a security sandbox, agents take turns one at a time, and Safari views and Save/Open panels still need a Screen Sharing session (Show HN)…

Atlas (Show HN)

safeagent gives each Claude Code worktree its own small Linux VM, with its own ports, Postgres and data

Shown on HN Nov 4, safeagent claude install adds worktree hooks so every claude worktree session gets a VM with its own processes, ports, Postgres, Valkey and Temporal, read from your lockfiles and compose files with no config, so parallel agents can't collide or reach your machine. It's early: macOS on Apple Silicon only for now, with Linux hosts in progress…

Maki is a Rust coding agent built to spend as few context tokens as possible, with neovim-style Lua plugins

Posted to HN Nov 4, Maki uses a tree sitter index tool to skim file skeletons before reads, a sandboxed code execution tool that filters tool output before it reaches context, and subagents that pick a weak, medium or strong model per task, plus a bash permission check that parses git diff && rm rf / as two separate commands. It runs on Anthropic and OpenAI API keys, xAI, Gemini, Copilot, Ollama, llama.cpp, OpenRouter and more, and its headless JSON output matches Claude Code's…

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