Copilot Fusion vs OpenCode 2.0: which delivered after 7 days?

OpenCode 2.0 is stamped Partly; Copilot Fusion is still Too early to call, so this comparison isn't settled yet.

No. 015 · GitHub

Copilot Fusion

Day 2 of 7

Too earlyDay 7 verdict

Only two hands-on reports so far, and both say Fusion tiers fail to work in some clients despite 'generally available'.

What they claimed

“In the Artificial Analysis Coding Agent Index, Copilot Fusion Max scored 60, within two points of Claude Code with Opus 5.5 Max.”

? Unclear

“GitHub Copilot Fusion is generally available.”

~ Mixed

“Copilot Fusion is available on all Copilot plans in Visual Studio Code, the GitHub Copilot app, GitHub Copilot CLI, and JetBrains IDEs.”

~ Mixed

No. 006 · Anomaly (OpenCode)

PartlyDay 7 verdict

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

What they claimed

“In 2.0 this server now automatically runs as a single background process on your machine.”

~ Mixed

“All MCP servers in 2.0 are opted into code mode by default.”

? Unclear

“First, we've added background subagents.”

? Unclear

“There are a lot of other changes but they are backwards compatible.”

~ Mixed

“We also spent quite a lot of time ensuring everything in OpenCode 2.0 can be hot-reloaded.”

~ Mixed

Both stamps come from the public user reports linked on each receipt, under the same method. Verdicts are opinion and are never paid for.

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