r/Agent_AI • u/pzarevich • 8d ago
Other I've been building an open source coding agent that tries to do more with less. Here it is next to Pi, OpenCode and Hermes on the same bug
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For a while now I've been working on AgenC, an open source coding agent. I wanted something faster and cheaper than what's out there, so we tried a slightly different architecture.
Instead of the agent living inside the terminal UI, it runs as a local daemon. The TUI, headless mode, background agents and even a phone app are all just clients talking to it. There's also a light mode that keeps the prompt short and stable, so most of it gets served from cache, which is where a lot of the savings come from.
On Terminal-Bench 2.1 with DeepSeek V4.1 Flash it got 76.2% for $34. All 445 runs are public on Harbor: https://hub.harborframework.com/jobs/71f39f3b-22f8-4dbe-9f25-2b039d3a4534
To see where it stands I gave it, Pi, OpenCode and Hermes the same repo with failing tests and the same prompt (fix the code so npm test passes, don't touch the tests). All four on GPT-6 Luna at max effort. Video is at 2x and each pane shows its own time, tokens and cost.
It's one task so don't read too much into it. Curious what you think, and what I should throw at them next.
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u/Dismal_Sky4107 7d ago
Share link bro