Show HN: OpenClacky – A token-efficient AI agent written in Ruby

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The Most Token-Efficient Open-Source AI Agent | OpenClacky

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30-Day Report

30 days since launch: real network-wide cache hit rate, tokens processed, and tasks completed — all public.

See live data

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100% Open Source<br>MIT License

clacky-ai/openclacky

The Most Token-Efficient Open-Source AI Agent

Claude Code-class capability. Lower cost than any Agent in its class.

30 days since launch · 7-day network-wide cache hit rate 94.9% · 488,097 tasks completed

Free Download

⭐ Star on GitHub<br>957

Backed by<br>MiraclePlus · ZhenFund · Yingdong Capital · Variable Capital · Sequoia China · Hillhouse Ventures

OpenClacky<br>OWNER

My sessions<br>+ New session

Weekly meeting → task breakdown

Claude Sonnet · 2 min ago

Weekly report draft

DeepSeek V4 · 3h

Daily news digest

cron · 09:00

Product group · Feishu

channel

Common skills

/deploy<br>/browser-setup<br>/skill-creator<br>/commit

Weekly meeting → task breakdown<br>Claude Sonnet 4.6 ▾

Here's today's PMF weekly meeting transcript — please extract the decisions and break them into tasks by owner.

read meeting-notes/2026-05-02-pmf.md

write tasks/2026-W18.md

Extracted 5 decisions and 8 tasks , assigned by owner: Mia 3 (interaction draft / user-interview script / event-tracking audit), Leo 3 (performance regression / rollout checklist / release schedule), Kai 2 (customer commitments follow-up / reconciliation). Results written to tasks/2026-W18.md. Want me to sync to the team calendar?

Keep talking, or drop a file…

Real Benchmarks

Cheapest. And Best.

Engineered for the best token economics — saving you the most time and money.

Lowest Cost

Head-to-head with the strongest rivals, we cost less. At equal capability, OpenClacky's token spend stays the lowest.

OpenClacky<br>US

~0.8×

16 tools · chasing 100% cache hit · smart subagent routing

Claude Code

1.0×

World-class harness, closed-source, subscription

OpenClaw

~1.5×

Peer harness agent

Hermes Agent

~3–4×

52 built-in tools, schema bloat

Cost comparisons are computed from the same model provider, using identical or capability-equivalent models billed via API.

See Full Cost Report

Top Quality

Head-to-head with the strongest rivals, output matches and details win. Scored task-by-task from first-hand reviewer comparison.

vs Claude Code & Codex

Completion

Excellent

Clarity & Layout<br>Edge

Excellent

AI Flavor (lighter is better)<br>Edge

Excellent

Output is first-tier alongside Claude Code, with a slight edge in clarity, layout and motion.

Same output, just 1/3 the cost of Codex ($4.50 vs $12.54)

Watch the Head-to-Head

Live Stats · Real Data

Don't take our word for it. Watch the network.

Not marketing copy. These numbers come from anonymous telemetry across all OpenClacky users, refreshed hourly.

Network-wide cache hit rate

Last 30 days

94.9%

7-day hit rate

What does this mean? About 85% off your input bill. Cached tokens are billed at ~10% of full price (as low as 1% on DeepSeek & MiMo) — the higher the hit rate, the more you save.

95% excellent<br>90% good<br>60–70% typical peer agents

Tokens processed yesterday

8.76B

Total tasks completed

488,097

All figures from real anonymous telemetry

Auto-refreshed every hour

What users say

Saves tokens · Works with any model · Easy to install

Real feedback from real users, unedited.

Same project, 3 hours of coding — 8× fewer tokens than Hermes.

Head, Cross-border E-commerce Company

Tried OpenClaw, Hermes, Copow — chose OpenClacky

Under 100 MB install vs Hermes at 48 GB. The WebUI is fantastic. After using this, I realized multi-agent is unnecessary. Our entire cross-border e-commerce team is on it now.

Same user

3 weeks later, full team switched

Codex with the most expensive model couldn't solve it in 30 minutes. Clacky did it with kimi-k2.6....

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