Muse Spark 1.1 Ranks High in Coding Agent Eval
ArtificialAnlys · x · 2026-07-11
Muse Spark 1.1 (xhigh) scored 69 on the Artificial Analysis Coding Agent Index using the Opencode harness. The post provides the following comparisons:
- Slightly lower than GPT-5.5 (medium), which scored 71 in Codex.
- Higher than Claude Opus 4.8 (medium), which scored 67 in Claude Code.
- At roughly $1.4 per task, it is highly cost-effective compared to other frontier coding agents, though the trade-off is a longer processing time per task.
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