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Copilot shows what you wrote — SigRank shows how you drove the AI
| Feature | SigRank | Copilot |
|---|---|---|
| What it measures | Token-cascade efficiency (Yield, Leverage, SNR, Velocity) | AI pair programmer (inline + chat) |
| Headline metric | Yield (Υ) = (cache_read × output) / input² | Lines accepted, suggestions shown |
| What it tells you | How efficiently you use AI — are tokens compounding? | What you wrote with AI assistance |
| Leaderboard | Yes — ranked by Yield, class tiers, weekly drops | No — org-level adoption dashboards only |
| API | Public REST API + MCP tools | GitHub Copilot metrics API (org-level) |
| Comparison | Head-to-head operator comparison | No |
| Privacy | Token counts only — never prompt content | Limited (GitHub org-level data) |
GitHub Copilot is an AI pair programmer. It generates inline suggestions and chat responses, and it shows you what you wrote with its help. That's useful for productivity — but it doesn't tell you whether your AI usage was efficient.
An operator who accepts every suggestion and burns 10M tokens to produce 1K output looks productive in Copilot's dashboard. But their cascade architecture is leaking signal. An operator who uses 100K tokens to produce the same 1K output has a lower token count but a 10x higher Yield.
SigRank's Yield (Υ) metric measures the architecture of your token cascade — is signal compounding, or are tokens burned? Copilot shows what you wrote. SigRank shows how you drove the AI.
GitHub Copilot is an AI pair programmer — it writes inline code and chat suggestions. SigRank measures how efficiently you drive it. Copilot shows what you wrote; SigRank shows how you drove the AI. Yield (Υ) tells you whether your tokens compounded signal or burned.
No — they measure different things. Copilot is the tool you drive; SigRank is the instrument that measures your driving. A developer using AI can run Copilot for code generation and SigRank for efficiency ranking. They're complementary.
Yield (Υ) = (cache_read × output) / input² — token-cascade efficiency from real sessions. Works across Claude, GPT, Gemini, Cursor, Copilot, and any AI coding tool.
Visit signalaf.com/score to enroll and submit your token telemetry. SigRank will compute your Yield, your rank, and your operator class. Token counts only — never prompt content, never code.
Stop writing. Start measuring.
Check my Yield