v2: OpenAI OAuth filters out gpt-6-astra #47405

Summary

OpenCode V2 filters gpt-6-astra out of the model catalog when using OpenAI ChatGPT/Codex OAuth, even when the model is explicitly configured and the connected account has access to it.

Environment

• opencode version: 0.0.0-beta-19124
• OS: Linux 6.6.87.2-microsoft-standard-WSL2, x86_64
• Terminal: VS Code (TERM_PROGRAM=vscode, TERM=xterm-256color, COLORTERM=truecolor)
• Shell: /usr/bin/zsh
• Install/channel: OpenCode V2 beta
• Active plugins: None configured

Reproduction

1. Connect OpenAI using ChatGPT/Codex OAuth with an account that has access to GPT-6 Astra.

2. Add the following to ~/.config/opencode/opencode.jsonc:

   {
     "$schema": "https://opencode.ai/config.json",
     "model": "openai/gpt-6-astra",
     "providers": {
       "openai": {
         "models": {
           "gpt-6-astra": {
             "modelID": "gpt-6-astra",
             "name": "GPT-6 Astra"
           }
         }
       }
     }
   }

3. Confirm that opencode2 debug config includes openai/gpt-6-astra.

4. Run opencode2 models.

Expected Behavior

openai/gpt-6-astra should be enabled, listed, and selectable when using ChatGPT/Codex OAuth.

Actual Behavior

The configuration is loaded, but openai/gpt-6-astra is absent from opencode2 models. The issue reproduces consistently.

The V2 OpenAI provider currently matches OAuth models using:

const match = apiID.match(/^gpt-(\d+\.\d+)/)

This requires a decimal component and therefore rejects gpt-6-astra.

Additional Context

The stable OpenCode implementation had a related report and fix:

• GPT-6 Astra is missing from the OpenAI Codex OAuth model picker #47363
• fix(opencode): compare Codex GPT versions by major and minor #47385 / commit 02a167e048d3bd7299225068d79e4fce5c830d67

That fix updates packages/opencode/src/plugin/openai/codex.ts, but V2 has a separate implementation in packages/core/src/plugin/provider/openai.ts. The current beta and v2 branches still use the decimal-only regex shown above.