# The default LLM model is now GPT5

As of February 12, 2026, the default LLM model used by Superhuman Go agents has been updated from OpenAI's GPT-4 to GPT-5. This update brings improved reasoning and performance across agents.

If you have an agent deployed on the platform, we recommend running a quick validation to ensure everything continues to work as expected. If you would like to revert back to GPT-4, you can do so by setting the `models` field on your skills:

```
pack.addSkill({
  // ...
  models: [
    { model: sdk.SkillModel.OpenAIGPT4 },
  ],
});
```

You can read more about model selection in the [Skills guide](../../../../../agents/features/skills/#models). We aim to provide advance notice for model updates whenever possible and we'll continue sharing updates as the Go platform evolves.