0.6.0

Download

Platform	File	Requirements
macOS, Apple Silicon	Houston-0.6.0-arm64.dmg	macOS 13 Ventura or newer. Open the .dmg and drag Houston to Applications.
macOS, Intel	Houston-0.6.0-x64.dmg	macOS 13 Ventura or newer. Open the .dmg and drag Houston to Applications.
Windows, x64	Houston-0.6.0-x64-setup.exe	Windows 10 or newer. Per-user install, no admin needed. Not code-signed yet: in the SmartScreen prompt choose More info, then Run anyway.
Linux, x64	Houston-0.6.0-x86_64.AppImage Houston-0.6.0-amd64.deb	glibc 2.35 or newer (Ubuntu 22.04+). The AppImage shows a banner when a new version is out. The .deb does not check, so download new versions yourself.
Terminal CLI: macOS, Windows, Linux	houston-cli.cjs	Node 22 or newer, on x64 or Arm. Run node houston-cli.cjs --help to start.

To check a download, compare it against SHA256SUMS, which is signed with GPG and cosign. Verifying downloads has the steps.

The other files below are the auto-update feeds, signatures, build provenance and SBOMs. You do not need them to install Houston.

What's changed

Refreshed the Claude, GPT-6, and Gemini model defaults with corrected pricing, plus faster chat titles.

New installs seed the latest model lineups, and existing installs have the new models appended automatically with nothing removed, so your current default and any models you still use keep working.

Breaking changes

• None.

Added

• Claude 5.x defaults: new installs seed Fable 5.1, Opus 5.5, Sonnet 5.5, and Haiku 4.5, with Opus 5.5 as the default. Existing installs get the three new models added (#108)
• GPT-6 line: new installs seed gpt-6-astra, gpt-6.1-sol (default), and gpt-6-luna, with the models added to existing installs too (#103)
• Gemini defaults: new installs seed Gemini 3.1 Pro Preview, 3.8 Flash (default), and 3.5 Flash Lite, with the models added to existing installs (#99)

Fixed

• Fresh installs no longer land on a broken Gemini default: the old 2.5 Pro seed could only fail for new accounts (#99)
• Claude 5.x models added via fetch from provider now show the reasoning toggle and R chip and send the correct thinking config, and keep working across long sessions (#98)
• Removed an em dash from the Changes panel scope line (#102)

Changed

• Chat titles now generate in parallel with the first turn, so they appear sooner instead of after a long turn finishes. Chats whose first turn errors or is aborted now also get a generated title (#95)
• Corrected per-model pricing for OpenAI, Gemini, and Claude models to match published rates (#103, #99, #98)