Source record

Published by Amp News (ampcode.com) (T1 source). The original is at https://ampcode.com/news/rush-2.0.

Pipeline notes

The summary and note below are generated by the signal pipeline — they are Beyond Desk’s reading, not quotations from the source.

Amp releases Rush 2.0, a fast agent mode retuned for small, well-scoped coding tasks. It switches from Haiku 4.5 to GPT-5.5 with no reasoning, drops grep/glob/create_file in favor of shell_command and apply_patch, and improved internal eval task completion from 39% to 44%.

Useful for Amp users deciding which model tier to route tasks to, and a concrete data point on speed-versus-quality tradeoffs in agent design.

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