GitHub's Copilot Fusion claims near Opus 5.5 intelligence at half the cost
kimmonismus · x · 2026-10-29
Photos from GitHub's conference show the launch of Copilot Fusion with Single, Cascade and Critique modes. An Artificial Analysis Coding Agent Index vs. Cost-per-Task chart on stage highlights Copilot Fusion (max) as offering almost the same intelligence as Opus 5.5 at half the cost, placing it in the "most attractive quadrant" alongside comparisons with Claude Code and Codex.
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