# Apertis Changelog: 2.2.104 — Models Added

Canonical page: https://apertis.ai/changelog/2.2.104
Markdown mirror: https://apertis.ai/changelog/2.2.104.md
Version: 2.2.104
Title: Models Added
Published: 2026-09-22
Category: feature

Add Claude Opus 5.5

## Highlights

- Claude Opus 5.5

## Details

## Claude Opus 5.5


Claude Opus 5.5 is Anthropic's flagship model for advanced reasoning, coding, and long-horizon agentic workflows, succeeding Opus 5. It excels at multi-step changes across large codebases, code review and bug detection, financial and scientific analysis, and understanding dense charts, diagrams, and screenshots, with stronger grounding when reporting figures and citing sources. Compared with Opus 5, it completes comparable tasks with fewer steps and lower token usage while providing clearer, more concise progress reporting. 

With adaptive thinking and configurable effort levels, Opus 5.5 can balance reasoning depth, latency, and cost, making it well suited for both demanding autonomous workflows and latency-sensitive professional tasks.