Github copilot costs hardcoded to 0

[stevoland]

Description

In advance of copilot's move to per-token pricing we would like to provide cost estimates but hardcoded zeros override model config:

opencode/packages/opencode/src/plugin/github-copilot/models.ts

Lines 100 to 104 in aa07f38

	cost: {
	input: 0,
	output: 0,
	cache: { read: 0, write: 0 },
	},

Will raise PR, thanks

Plugins

No response

OpenCode version

No response

Steps to reproduce

Add costs to model config:

{
  "provider": {
    "github-copilot": {
      "models": {
        "gpt-5.4": {
          "cost": {
            "input": 2.5,
            "output": 15,
            "cache_read": 0.25
          },
        },
      }
    }
  }
}

Costs remain $0.00

Screenshot and/or share link

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Operating System

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Terminal

No response

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• Github Copilot: Tracking Premium Requests #768: Also concerns GitHub Copilot cost tracking always showing $0.00 (though that issue focuses on premium request quota display, while this one is about hardcoded zeros overriding model config costs — they may be related or complementary)