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Hydra
One cortex, many heads local-first AI control plane
Cut AI API costs 70-85% without changing your workflow. Hydra routes each dev task to the cheapest capable model - Claude, Codex, Gemini, or free local Qwen.
Hey Product Hunt 👋
Every AI router I tried optimized for one thing: cost. None of them could answer the question I actually cared about: how confident are we that this answer is correct, and what's the blast radius if it's wrong?
So I built Hydra: a local-first Trust Control Plane for AI. Three ideas run the router:
Cost/quality Pareto routing: single models are dots; Hydra's routed curve hits equal-or-better quality at lower cost by picking the best head per task.
Optimal stopping (SPRT): it polls heads until a sequential probability ratio test crosses your target confidence (e.g. 0.95), then stops early and banks the unspent heads.
Percolation-κ blast radius (Molloy–Reed): κ = ⟨k²⟩/⟨k⟩ over the code graph. A hub file with many transitive dependents is cascade-capable, so Hydra raises the confidence bar before touching it.
All of it runs on-device with ~0ms routing overhead and zero network calls to decide. Local Qwen is the always-on terminal fallback, so a dispatch never hard-fails on a rate limit.
It's MIT-licensed. I'd love to get torn apart on the details: Is SPRT the right stopping rule here, or would you calibrate confidence differently? And is κ a fair proxy for blast radius?
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About Hydra on Product Hunt
“One cortex, many heads local-first AI control plane”
Hydra was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #151 on the daily leaderboard. Cut AI API costs 70-85% without changing your workflow. Hydra routes each dev task to the cheapest capable model - Claude, Codex, Gemini, or free local Qwen.
Hydra was featured in Developer Tools (517.5k followers), Artificial Intelligence (475.9k followers), GitHub (41.4k followers) and Tech (629.9k followers) on Product Hunt. Together, these topics include over 386.6k products, making this a competitive space to launch in.
Who hunted Hydra?
Hydra was hunted by Ankit. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Ankit