OpenCode – Open source AI coding agent • Hacker News Board

OpenCode – Open source AI coding agent

#1

Post by rbanffy » Fri, Mar 20, 2026, 9:03 PM UTC

OpenCode – Open source AI coding agent
opencode.ai

Re: OpenCode – Open source AI coding agent

#2

Post by ramon156 » Fri, Mar 20, 2026, 9:28 PM UTC

The Agent that is blacklisted from Anthropic AI, soon more to come.

I really like how their subagents work, as a bonus I get to choose which model is in which agent. Sadly I have to resort to the mess that Anthropic calls Claude Code

Re: OpenCode – Open source AI coding agent

#3

Post by sergiotapia » Fri, Mar 20, 2026, 9:32 PM UTC

If I wanted to switch from Claude Code to this - what openai model is comparable to opus 4.6? And is it the same speed or slower/faster? Thank you!

Re: OpenCode – Open source AI coding agent

#4

Post by lima » Fri, Mar 20, 2026, 9:33 PM UTC

ramon156 wrote: post #2

The Agent that is blacklisted from Anthropic AI, soon more to come. I really like how their subagents work, as a bonus I get to choose which model is in which agent. Sadly I have to resort to the mess that Anthropic calls Claude Code

You can still use OpenCode with the Anthropic API.

Re: OpenCode – Open source AI coding agent

#5

Post by rbanffy » Fri, Mar 20, 2026, 9:33 PM UTC

sergiotapia wrote: post #3

If I wanted to switch from Claude Code to this - what openai model is comparable to opus 4.6? And is it the same speed or slower/faster? Thank you!

If you want faster, anything running on a Cerebras machine will do.

Never tried it for much coding though.

Re: OpenCode – Open source AI coding agent

#6

Post by avereveard » Fri, Mar 20, 2026, 9:38 PM UTC

isn't this the one with default-on need code change to turn off telemetry?

Re: OpenCode – Open source AI coding agent

#7

Post by swyx » Fri, Mar 20, 2026, 9:40 PM UTC

sergiotapia wrote: post #3

If I wanted to switch from Claude Code to this - what openai model is comparable to opus 4.6? And is it the same speed or slower/faster? Thank you!

do you care about harness benchmarks or no?

Re: OpenCode – Open source AI coding agent

#8

Post by pimeys » Fri, Mar 20, 2026, 9:41 PM UTC

lima wrote: post #4

ramon156 wrote: post #2

The Agent that is blacklisted from Anthropic AI, soon more to come. I really like how their subagents work, as a bonus I get to choose which model is in which agent. Sadly I have to resort to the mess that Anthropic calls Claude Code

You can still use OpenCode with the Anthropic API.

Yep. That's what I do. Just API keys and you can switch from Opus to GPT especially this week when Opus has been kind of wonky.

Re: OpenCode – Open source AI coding agent

#9

Post by cgeier » Fri, Mar 20, 2026, 9:41 PM UTC

I‘m a big fan of OpenCode. I’m mostly using it via https://github.com/prokube/pk-opencode-webui which I built with my colleague (using OpenCode).

Re: OpenCode – Open source AI coding agent

#10

Post by sergiotapia » Fri, Mar 20, 2026, 9:41 PM UTC

swyx wrote: post #7

sergiotapia wrote: post #3

If I wanted to switch from Claude Code to this - what openai model is comparable to opus 4.6? And is it the same speed or slower/faster? Thank you!

do you care about harness benchmarks or no?

Just a data point, I would need to use it for my workflows. I do have a monorepo with a root level claude.md, and project level claude.md files for backend/frontend.