Head-to-Head Startup Ranking & Discovery

OpenSpec

SaaS · Other · Early-stage

OpenSpec is an open-source, spec-driven framework. We help developers plan complex features by creating lightweight spec documents that serve as durable context for their coding agents. With 20k+ GitHub stars, we’re one of the leading spec-driven frameworks, used by thousands of developers and teams to plan and ship with the coding agent of their choice. Our philosophy is simple: keep planning lightweight and iterative, and match how software actually gets built, messy, evolving, and real, without dragging teams into rigid, bureaucratic workflows.

Founded

2026

Stage

Early-stage

📊 Coliseo ratings

🏆 Overall 1482 Elo

1484

💰 Conviction

Provisional

1464

🔥 Momentum

Provisional

1498

🧲 Talent

Provisional

Total matchups0

Ratings are live Elo scores from head-to-head crowd votes — opinion, not fact or financial advice. How it works →