From the source
The change resulted in a 17 percentage point improvement on Terminal-Bench 2.0.
A fallback setting for Sonnet 4.5 was subsequently removed.
Gemini 3 Pro
Amp switched the main model powering its smart agent mode from Claude to Gemini 3 Pro.
Capability change
From the source
Gemini 3 Pro is now the new main model in Amp, powering the smart agent mode. In our first internal, not-even-optimized run of Terminal-Bench 2.0 the score went up by 17 percentage points, after switching from Sonnet 4.5 to Gemini 3. Update (2026-01-06): The Sonnet 4.5 fallback setting mentioned below has been removed
ampcode.com
