Found something good?

You can use OpenAI GPT-5.5 in Amp's deep mode with this in ~/.config/amp/settings.json:

{
"amp.internal.model": { "deep": "openai:gpt-5.5" }
}

Will be the default soon. Why not yet? Because...

For now, usage of GPT-5.5 uses OpenAI's Safety Retention Policy, which means non-zero data retention by OpenAI in the (~0.05%) case of inputs that OpenAI's classifier identifies as severe cybersecurity abuse risk. We're working with OpenAI to lift this requirement, which as far as we know applies to use of GPT-5.5 in other agents as well. (Has anyone seen this disclosure from other agents?)