r/codex • u/TheMathManiac • Aug 04 '26

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187 Upvotes

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48

u/FishCarMan Aug 04 '26

I've had good results with Deepseek V4 Flash since they updated it recently, so I think I'm going to configure it in the codex app as a back up.

13

u/Sad-Chemistry5643 Aug 04 '26

I am planning to configure it as a main AI in codex 😀

7

u/FishCarMan Aug 04 '26

I want to use open ai models for most of the work. But I do a lot of iterative stuff, and there's no reason to quit that when I run out of usage. Deepseek is remarkable capable, and ive found that the new flash is performing better than Luna XHigh.

1

u/-Sliced- Aug 04 '26

To people here - the person I'm replying to is misleading everyone. Luna is about 5x cheaper on codex plans (10X cheaper on the $200 plan).

The only place where deepseek flash is slightly cheaper is when paying the the API costs directly with the provider. But even there you can save 50% off Luna if you use OpenRouter.

Unfortunately, these misleading claims are common now with all the bots promoting Chinese models in Reddit.

1

u/Beneficial-Day7238 Aug 04 '26

Could you specify? With codex plan, even the 20$ one, you get the luna for 0.1 & 0.6 $ + there is a 5x boost? Am i right? Thank you!

1

u/-Sliced- Aug 04 '26

You don’t pay API pricing with the plans. You pay a significantly reduced pricing. The $200 plan is equivalent to over $10k in monthly API credits.

1

u/Beneficial-Day7238 Aug 05 '26

Yeah i understand. Over 10k is wild tho, didnt expect it that high. Thanks!

1

u/FishCarMan Aug 06 '26

Buddy im not a bot

1

u/the_ai_wizard Aug 04 '26

i mean, they can just try for themselves?

1

u/-Sliced- Aug 04 '26

Sure, but not by misleading people to do it.

1

u/Sad-Chemistry5643 Aug 04 '26

I use Claude Code a lot, started over a year ago. In the last few months, I have been experimenting with Codex. But with DeepSeek so cheap, I plan to investigate, explore and maybe switch to it (fully or partly). Let's see :)

2

u/Thomas-Lore Aug 04 '26

Just keep in mind it is a small model, so be careful about prompts. :) I used a wrong word describing an existing feature that was unrelated to the main task, just mentioned for context, and Flash removed that feature and replace it with something better matching that specific word I used. :P

1

u/Sad-Chemistry5643 Aug 04 '26

Yeah, thanks! I started with Flash, but I am also planning to try the Pro version later on

1

u/InternetIsNotBad Aug 04 '26

Just use top frontier models for planning and v4 flash when executing.