OpenCode Go: GPT 5.6 Luna unavailable in Germany and Kimi K3 returns Forbidden

Description

Hello,

I subscribed to OpenCode Go primarily because I wanted to use GPT 5.6 Luna, but I currently cannot use it.

My environment:

• OS: Windows
• OpenCode: 1.18.22
• OpenCode Go credentials: configured successfully
• Region: Germany

Both models are listed by the OpenCode Go API and by the OpenCode CLI:

• opencode-go/gpt-5.6-luna
• opencode-go/kimi-k3

GPT 5.6 Luna

Running:

opencode run -m opencode-go/gpt-5.6-luna "Say OK"

returns:

Error from provider (Console Go): Upstream request failed: [unsupported_country_region_territory] Country, region, or territory not supported

This is particularly confusing because I am located in Germany, and Luna is listed as an available OpenCode Go model.

Kimi K3

Running:

opencode run -m opencode-go/kimi-k3 "Say OK"

returns:

Error: Forbidden: {"model":"kimi-k3"}

However, I tested the exact same Go API credentials directly against the OpenCode Go API:

POST https://opencode.ai/zen/go/v1/chat/completions

with:

{"model":"kimi-k3","messages":[{"role":"user","content":"Say OK"}]}

and it works successfully. The API returned a normal chat.completion response from kimi-k3.

Also, all other OpenCode Go models I tested work normally through OpenCode.

So this does not appear to be a general account, API key, quota, or connectivity problem.

Could you please check:

1. Why GPT 5.6 Luna is returning unsupported_country_region_territory for a user in Germany?
2. Why Kimi K3 works directly through the Go API but returns Forbidden when called through OpenCode 1.18.22?
3. Whether these are known issues with the current Go routing/backend?

I subscribed to OpenCode Go specifically to use Luna, so I would really appreciate clarification on the regional restriction and whether it can be resolved.

Thank you.

Plugins

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OpenCode version

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Steps to reproduce

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Screenshot and/or share link

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Operating System

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Terminal

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