Dev Benchmarks 10+ Coding Agent Workflows: Astra Planning + Sol 6.1 Beats Pricier Combos
kevinkern · x · 2026-10-02
Developer Kevin Kern ran the same feature through 10+ coding agent workflows on his finance app: solo runs, Astra planning + Sol 6.1 implementation, Opus 5.5 via MCP, 5× parallel Sol with review, and more.
Key takeaways:
- Astra planning & reviewing Sol 6.1's work is his everyday pick; Sol alone is the budget pick — both still needed fixes after review.
- Luna was by far the cheapest but scored lowest on code quality.
- Astra and Opus 5.5 solo runs came close to the combined pipelines at much lower cost — multi-model pairing doesn't automatically help.
Full comparison results are published, covering desktop and mobile per workflow.
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