Today, we’re launching an update to Cosine, the coding agent built for developers with taste. Starting with Swarm mode, split long-horizon work into parallel subagents for research, implementation, QA, and more. Ship while you sleep.

Cosine is one agent runtime across CLI, desktop, and cloud. Built for visibility, control, and code you actually want to keep. That’s much closer to how real engineering work actually happens.

Control matters at the model layer too.  Cosine supports managed models, BYOK, and model switching by task, so teams can keep control over cost, provider choice, and deployment constraints.

Cosine works the way serious engineers already do. → Start locally → Move across environments seamlessly → Scale to remote execution Same agent. Same standards. More leverage. Available now on macOS, Windows, and Linux.

If you care about control, code quality, and agents that can work the way real engineering teams do, try Cosine. We're offering 15M free tokens to anyone who signs up before the end of the month. See what a coding agent built for developers with taste actually feels like.

You can literally start a swarm at night and wake up to finished work 😭

My swarm was hard at work last night. I fell asleep and watched the whole session while snoozing. In the morning, tested the work the swarm had done and was ready to ship 🙌

This Cosine update is genuinely mind-blowing! Swarm mode sounds like it's going to supercharge our workflows.

This is actually a solid upgrade. Swarm mode sounds like a real productivity boost. Definitely going to try it out.

@CosineAI is giving a whole new meaning to the saying "working hard or hardly working" with a swarm running, I'm doing both

Cosine swarm is genuinely mind-blowing: - Full security review of an enterprise codebase in 90 minutes - Built a pdf compressor app, from scratch, in two 6-hour bursts - Built a 3D watch movement simulator in 13 hours The future is here

Swarm mode sounds powerful, this could really change how devs ship faster without burning out.

Cosine is not slowing!

Finally, an agent that fits real workflows. Same agent. Same standards. Just more leverage.

Swarm mode is a different level. Parallel agents for research, implementation, and QA at the same time? That's insane...

Incredible work!

From solo coding to swarm execution — this is where dev workflows start to break traditional limits.

This Cosine update is truly amazing! Swarm mode seems like it’s going to really boost how we work.

swarm mode splitting into research, implementation, and qa is actually so real..

now it will be possible to do several things with the agent's AI at the same time?

Excited to see how Swarm mode boosts productivity for developers!

this concept is strong, parallelizing work like this makes a lot of sense

Ship while you sleep is a crazy promise. Curious to see this in action.

This is where coding agents get serious.

Let's goooo! So excited to get this to users, it's how i do so much of my work

Swarm mode really said “go to sleep, I got this” 😴🚀

🔥

Parallel agents for research and QA… that’s actually useful.

Interesting video. Will try and give feedback

This sounds amazing! Love the idea of multitasking with subagents.

Cosine clearly isn’t easy competition, you’re setting a serious benchmark here. Excited to watch the team keep pushing limits and redefining what’s possible.

The billing piece matters here too — parallel subagents burning Gemini API credits in swarm mode will drain a prepaid balance faster than most builders expect. Zero balance = all agents stop. Cold. Set auto-reload before you sleep, not after. Full breakdown on the new prepaid model:

If you want to give it a try, we're offering a free month on hobby tier through Product Hunt today. We'd love to hear your feedback!

I wonder if we can use different AI for each agent here

Good time to be a builder.

Swarm mode is a big unlock, shipping while you sleep is a bold promise .

been testing this… swarm mode is kinda wild 🤯 splitting tasks while you sleep hits different

You could start a swarm of work at night and wake up to find it all done!

DM for collab 📩