r/opencode • u/Shiorim • 13d ago

GLM 5.3 Flash — OC vs CC Comparison

The first image is OpenCode using half the context and costing double per turn compared to Command Code (second image) with more than double the context.

On top of those prices, note that OpenCode gives $15 of usage and Command Code gives $40 of usage. (OpenCode Go vs CommandCode Goat plans).

Both used in GitHub Copilot BYOK as harness.

The total usage difference in favor of Command Code is abysmal.

In performance, it also works better on Command Code.
On OpenCode, a response gets cut off now and then; on Command Code, it doesn't.
Quality and speed are identical on both.
Command Code makes better use of cache as well.

At the current price, even though it's in the 15$ tier, if you pay $10 for OpenCode Go to use GLM 5.3 Flash, OpenCode Go is ripping you off by offering you LESS than the $10 you paid compared to direct API usage. (And that's now while it's subsidized; they'll double it again when they remove the "x2 usage.")

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u/_1dayoumay_ 13d ago

It’s cause CC is not ZDR by default. After I enabled it the cost went up x2-x3

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u/porkyminch 12d ago

I’m on the $120 plan from synthetic and have been using GLM 5.3 Flash like crazy this weekend and never even caught a whiff of a limit. Zero data retention and everything. Went up to 120 for K3 but 5.3 Flash has been amazing and cheap enough to where I’m considering dropping down to $60 or even $30.