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Nexus CLI releases are listed newest first. To update, run:
Then restart your harnesses so they load the new settings.
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October 22, 2026
New
  • Bring your own Anthropic and OpenAI keys to Nexus Auto with nexus auto.
  • nexus auto shows every key, both your saved keys and your account’s Provider Keys.
  • nexus status lists installed harnesses as well as connected ones.
  • nexus update updates Nexus CLI.
Improved
  • Connecting a harness that isn’t installed stops and writes nothing.
  • Claude Code: the Artifact tool, /model picker, and status line work better.
  • Nexus CLI prompts for keychain access less often.
  • Sign-in no longer tells account members that they aren’t members.
  • nexus logout also clears the Anthropic and OpenAI keys saved on this machine.
  • nexus update no longer modifies a ~/.nexus directory that Nexus CLI didn’t create.
  • The installer now requires Node.js 22 or later.
Deprecated and removed
  • Removed nexus claude live.
  • Removed the Anthropic and OpenAI key flags from harness commands.
  • Deprecated nexus harnesses in favor of nexus status.
  • Deprecated the Anthropic and OpenAI key flags on nexus configure.
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October 20, 2026
New
  • FireConnect is now Nexus CLI. The command is nexus, and your harnesses, key, and settings carry over.
  • FireRouter is now Nexus Auto, with the model ID auto in every harness.
  • Keep Nexus Auto on Fireworks models with nexus auto --providers fireworks.
  • Claude Desktop runs on Linux as well as macOS.
Deprecated and removed
  • Removed FireRouter models and the auto-instant mix.
  • Deprecated FIRECONNECT_* environment variables.
  • Deprecated --routing-preference.
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October 12, 2026
New
  • Codex starts on FireRouter (now Nexus Auto), and OpenAI turns use your own sign-in.
  • MCP servers and ChatGPT app connectors work in Codex.
  • Rotating your Fireworks key no longer breaks connected harnesses.
  • OpenCode v2 lists your Fireworks models.
Fixed
  • OpenCode’s /models no longer lists models twice.
  • Claude Desktop works behind TLS-inspecting corporate proxies.
  • Node.js from fnm no longer goes missing in new shells.
  • When the model catalog can’t load, you see the gateway’s actual error.
Deprecated and removed
  • Removed --anthropic-api-key from nexus claude.
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October 4, 2026
New
  • Claude Desktop runs on Fireworks with nexus claude-desktop on.
  • Pin Claude Code tiers to open models, such as for subagents.
  • FireRouter (now Nexus Auto) can use OpenAI models with your own OpenAI key.
  • New Anthropic and OpenAI models show real prices.
  • nexus models is a shortcut for nexus model list.
Fixed
  • nexus claude --model <id> now makes the model your default.
  • Codex auto-review runs on the model you picked.
  • --model on a first Codex connection keeps the full catalog.
  • DeepSeek Harness 0.1.7 and later skip the DeepSeek key prompt.
If you use Codex auto-review or DeepSeek Harness, run nexus codex or nexus deepseek once after updating.
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September 21, 2026
New
  • GitHub Copilot works with Fireworks. nexus copilot-app connects the desktop app, and nexus copilot-cli connects the CLI.
  • Claude Code keeps its own tier models.
  • Every other harness starts on auto.
  • Claude Code gets native web search and fetch.
  • Codex web search works again.
Improved
  • The built-in Explore agent follows your session model again.
  • Connecting again refreshes the picker.
  • Codex compacts long sessions so they can continue.
  • GLM 5.3 models unlock the max reasoning effort.
Removed
  • The fireworks-websearch MCP server.
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September 3, 2026
Fixed
  • Codex 0.153 works with Fireworks again.
  • The status line and session meter name each model once, instead of listing it twice.
  • Claude Fable 5.1 pricing is in estimates and nexus model list.
  • A routed subagent slot keeps its [1m] tag.
  • nexus model list lines up prices across models.
  • nexus claude demo turns off your own MCP servers so they can’t skew the race.
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August 31, 2026
New
  • Session cost in Claude Code. A status line shows which models ran and what they cost.
  • Support for the ChatGPT desktop app.
  • Pick a model for each Claude Code slot in the setup wizard.
  • Faster nexus model list.
Improved
  • MCP tool search works through the Fireworks gateway again.
  • nexus claude demo and the status line use the same prices.
  • The update repairs missing dependencies.
  • Better key storage on Linux over SSH or WSL.
  • nexus claude status shows every slot.
  • GLM 5.3 and GLM 5.3 Flash are in the catalog.
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August 20, 2026
Improved
  • nexus claude demo estimates cost more accurately.
  • Connecting and disconnecting Cursor IDE is more reliable.
  • nexus uninstall restores one harness at a time and waits for open IDEs to quit.
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August 18, 2026
New
  • Claude Code can use Anthropic and Fireworks models side by side.
  • nexus claude demo races two live Claude Code sessions side by side.
  • DeepSeek Harness replaces Deep Agents. Connect it with nexus deepseek.
Fixed
  • nexus status no longer reports “All off” while models are connected.
  • OpenCode shows the cost of each model.
Deprecated
  • nexus demo, replaced by nexus claude demo.
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August 9, 2026
New
  • VS Code uses the Chat Completions API for better compatibility.
  • Cursor IDE’s picker hides the built-in models while connected.
  • A live session cost meter for Claude Code, now opened with nexus claude usage.
Fixed
  • Kimi K3 lists its 1M-token context window.
  • On Linux, quit detection ignores VS Code’s Electron helper processes.
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August 1, 2026
New
  • Claude Code stays connected when you reinstall or update.
  • Update in place. When a newer version is available, interactive terminals offer to update.
  • Claude Code model choices persist across sessions, with a guided setup.
Improved
  • More reliable setup for Cursor IDE, OpenCode, and VS Code.
  • Clearer Claude Code model defaults and catalog labels.
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July 26, 2026
New
  • nexus model list shows the coding model catalog in one place.
  • FireRouter (now Nexus Auto) works like any other model through --model.
  • Claude Code usage reports show session tokens and estimated Fireworks cost.
Improved
  • Sign-in supports enterprise SSO and stores your key securely.
  • Your own settings, headers, and model selections are kept when you connect and disconnect.
  • More reliable Windows installs and error messages.