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Repo of the Month Dec 2025 · +38%

💬OpenCode

ACTIVE BREAKOUT

anomalyco/opencode · homepage ↗

The open source coding agent.

⭐ Hugely popular: 198k stars, gaining about 3k a week

View on GitHub ↗

repo profile

vintage 2025 1 year old
delivery product
language TypeScript
license MIT

momentum

total stars 198k
stars added last week +3k
HN peak 625 pts 7mo ago
binary downloads 2M total · GitHub releases
used by 2 repos & packages
commits / week 76 cooling · -57% vs prior mo
issues closed 89% closed same-day, median
contributors 998 (+13 in 15d)
release cadence weekly
last activity today

durability

backing VC-backed Anomaly Innovations (SST, YC)
openness permissive
bus factor 4 distributed
top-author share 23% 6 mo

bus factor = how many people it takes to cover more than half the commits (6 months). 1 is a solo project; higher means the work is spread across a team. top-author share is the single busiest author's slice of those commits.

since we covered it

monthly average + 19k/mo (+57%/mo) · + 165k total since PR#22

why it's a big deal

  • Offers a self hosted coding assistant without vendor lock in.
  • Integrates with mainstream editors and workflows out of the box.
  • Brings explainability and transparency to model updates and reasoning.

under the hood

  • Built around an open model and lightweight serving stack.
  • Supports local GPUs and containerized deployments.
  • Designed for easy extension and embedding into custom developer tools.

our take from PR#22, 2025-11-26

star history

PR#22 · 33k198k now Apr 2025Aug 2026
  1. PR#22 33k 2025-11-26
  2. now 198k + 165k since first covered

curve is sampled from GitHub's star history, plus our own daily readings since we covered it; the dashed stretch is before we first covered it, the solid line since. figures at coverage are the numbers we printed then (approx.), current count is live.

understory

Output and attention are roughly in balance.

+2 understory score output 100 · clout 98
Aug 2025 Jul 2026
  • output, commits & releases
  • clout, star velocity

output = commits & releases; clout = star velocity, both 0 to 100 monthly indices; the gap where output runs above clout is the understory. The understory →

covered in

  • PR#22 2025-11-26 on the radar

    Open source coding model and dev assistant

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