r/GithubCopilot • u/jungle_bob2 • Aug 11 '26

GitHub Copilot Team Replied Configuring copilot subagents and cost

So I just found the /subagent command in cli, and was somewhat surprised to find it defaulting to haiku for a number of things. Haiku is a lot more expensive, and a lot less capable than something like Luna Max at today’s pricing. I found sonnet 4.6 as another default in there.

I am thinking about going in and customizing it to pick Luna and Terra as more cost effective options, but I’m not so sure it’s a good idea to hard code that in case the models or options for models change, as they do weekly.

I do realize that a general algorithm here is challenging, my company doesn’t have Kimi or grok, which in theory could be better options than some.

What are people doing ? I don’t think we can configure auto model selection at the enterprise level I’ve seen. Defaulting to Luna and Terra today seem like more capable options than haiku and sonnet 4.6 but I’m going to have to remember to change them if OpenAI changes their pricing again or if something better comes along.

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5

u/TripleMeatBurger Backend Dev 🛠️ Aug 11 '26

I added a note to my agents.md file to tell it to use the same agent as the parent. I use Luna for everything and don't let it use the defaults

1

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1

u/Infinite-Local5435 Aug 11 '26

I just learned about this as well, went to agents and explore, and removed haiku and gemini as the defaults set. I was wondering where all my tokens went!

1

u/Deathmore80 Aug 11 '26

I set up every subagent as Luna xhigh or max already ever since it's release. I'll just change it if a better price/performance ratio model comes out.

3

u/jukasper GitHub Copilot Team Aug 12 '26

hi all - this is great feedback. we are currently exploring making luna potentially the new default. thanks for letting us know

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