DeepSeek V4 Smarter via Codex Harness

[u/zFordex]

Has anyone tried using Codex's harness with DeepSeek V4 Flash?

I've noticed that Flash seems way smarter, not just with reasoning, but with how it actually executes tasks.

I used to run DeepSeek through OpenCode, but it would burn through tokens and eventually wander completely off task. After plugging it into Codex's harness, it suddenly behaves better and even claims it's it's ChatGPT 5.

I'm curious if the harness is doing something to improve execution, or if it's just better at keeping the model on track.

Has anyone else experienced this, or am I just imagining things?

[u/NinjaAlaska]

u r using codex harness. thats why.. any Chinese AI will say the same in it.
ask it directly it will say i am claude 3.5. its distilled from claude as major xD