2026-10-11 18:03 UTC

Independent reproductions will determine whether Claude Code, OpenCode, and Pi produce comparable code quality with DeepSeek V4 Flash while differing by up to roughly fourfold in runtime and token consumption.

state: expiredheat: lowuncertainty: highnovelscott: nonecoding-agents agent-harnesses agent-efficiency deepseek-v4-flashDeepSeekAnthropicOpenCodePi

What is this?

The case proposes an independent harness benchmark running DeepSeek V4 Flash through Claude Code, OpenCode, and Pi to compare code quality, runtime, and token consumption. Supplied snippets describe DeepSeek V4 Flash as a low-cost coding model and report benchmark quality near Claude-class alternatives, including one evaluation where Flash scored 82.3 versus Claude Haiku 4.5’s 82.9 at roughly one-quarter the task cost. However, none of the snippets documents the claimed three-harness showdown or establishes a roughly fourfold runtime or token-consumption difference, and the roles or implementations of OpenCode and Pi are not explained.

Why it matters to Scott

No intersection found in Scott’s wikis or the radar’s accumulated pages. The proposed harness comparison is also not yet supported by the supplied evidence, so there is no grounded result that would change what Scott builds or argues.
queries asked of Scott's wikis
  • coding-agent harness effects on model performance
  • model versus harness attribution in coding-agent evals
  • token and runtime efficiency for agentic coding loops
  • cross-harness reproducibility benchmarks
  • model-agnostic coding-agent architecture
  • cost-quality tradeoffs in coding agents

Measured heat

no measured readings yet — the hourly heat pass fills this in

How the heat travelled

no chain yet — the hourly chain pass fills this in

Evidence (1) — ⭐ canonical anchor

sourceobjectauthorscorecomments
🟠 reddit ⭐Harness showdown: Claude Code vs OpenCode vs Pi with DeepSeek V4 Flash
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Interpretation history

Decision trace