Ask HN: Which one do you use for planning and coding between sonnet and Opus?

[neverenderr]

I use Claude Opus for planning at high effort and Claude Sonnet 5 for coding at max effort.

[runjake]

Sonnet 5 Medium and GPT 5.5 Medium for coding.

I drop down to a Mini model for file-based tasks.

Codex keeps trying to revert me back to 5.6 but 5.6 seems to use too many tokens to do the same or slightly inferior job.

I am only on multiple $20 plans.

[neverenderr]

I see. I am just using the $20 claude paln, so I can't use GPT.

[igor_nast]

Opus - planning/review + gpt spark med - implementation. Works better at lower cost.

[neverenderr]

I don't have a subscription to Codex, but it's good to know.

[leros]

I've been using Fable for planning and Opus for coding

[neverenderr]

What plan are you on? Max?

[leros]

Max 5X. I have plenty of headroom coding using Opus all day so I figured I may as well use Fable a bit. I have found Fable to do a much better job of understanding a codebase and avoiding subtle bugs.

[neverenderr]

Oh man, I haven't used fable that much, so I can't say much, but based on your experience, I think it seems pretty good. Also, I am on the pro plan, so I can't afford to use fable xD.

[leros]

Opus has been great for me on building simple features or adding new things. Fable has been significantly better for things like "there are subtle bugs in this complex interface I can't figure out, find them". Opus gets a rough idea for some. Fable actually finds all the tiny subtle issues.

[neverenderr]

Opus is good for planning, and fable seems interesting now.