AI coding tools / Alternatives

Copilot Fusion alternatives, tested on day 7

The other AI coding tools Day 7 has checked, ranked by stamp: Delivered first, then Partly, Not yet and Too early. Within a stamp, more user reports rank higher.

Copilot Fusion itself is stamped Too early: read its receipt.

1. 01

   No. 006 · Anomaly (OpenCode) · launched 14 Oct 2026 · stamped 22 Oct 2026

   OpenCode 2.0

   Claims ✓0 ~3 ✗0 ?2 · 14 reports · vs Copilot Fusion

   The background service shipped, but v1 upgrades hit migration errors and a failed service takes every client down.

   Partly
2. 02

   No. 003 · OpenAI · launched 25 Sept 2026 · stamped 22 Oct 2026

   Codex CLI 0.157.0

   Claims ✓0 ~1 ✗0 ?3 · 6 reports · vs Copilot Fusion

   It shipped, but the new background server broke startup for some Windows and Arch Linux users and left a self-updating process running that CLI users did not ask for.

   Partly

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