# Amp — Rush, 2.0

- Company: Amp (ampcode.com)
- Announced: 2026-05-21
- Category: capability-change
- Coverage: not counted
- Announcement: yes
- Group: announcements
- Source: https://ampcode.com/news/rush-2.0
- Record: https://forck.live/items/7747-rush-2-0
- Subject: Amp
- Models affected: GPT-5.5, Haiku 4.5
- Pricing: $0.58 per task on average

Amp released Rush 2.0, a new version of its agent mode that uses GPT-5.5 instead of Haiku 4.5. The update improved solve rate from 39% to 44% and reduced average completion time from 2 minutes 59 seconds to 1 minute 32 seconds, with a slight cost increase to $0.58 per task.

## Evidence

Verbatim from https://ampcode.com/news/rush-2.0:

> We're releasing a new version of our agent mode rush .

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Record: https://forck.live/items/7747-rush-2-0
Catalogue: https://forck.live/llms.txt
Current issue: https://forck.live/feed.md