---
title: "Opus 5.5"
type: entity
entity_type: model
url: https://frontiernewswire.com/models/opus-5-5
updated: 2026-10-27T18:40:19.000Z
---

# Opus 5.5

Canonical: https://frontiernewswire.com/models/opus-5-5

- **Type:** Model
- **Signals:** 5
- **First seen:** Sep 25, 2026
- **Last seen:** Oct 27, 2026

## Recent signals

- [How Anthropic ships the \#1 LLM in the World safely: Separating the Brain from the Hands](https://frontiernewswire.com/s/how-anthropic-ships-the-1-llm-in-the-world-safely-separating-the-brain-899a4a04) (Oct 27, 2026)
- [Artificial Analysis says Kimi K3.1 Pro lands 4th on its Intelligence Index, behind only Opus 5.5 (max), Sonnet 5.5 (max), and Muse Wonder Full (max) (@artificialanlys)](https://frontiernewswire.com/s/artificial-analysis-says-kimi-k3-1-pro-lands-4th-on-its-intelligence-4df83ab4) (Oct 23, 2026)
- [Anthropic says new measures like preserved thinking in Fable 5.1 and Opus 5.5 have reduced data harvesting through distillation attacks by about 90% to 99% (Anthropic)](https://frontiernewswire.com/s/anthropic-says-new-measures-like-preserved-thinking-in-fable-5-1-and-6100deca) (Oct 12, 2026)
- [Meta’s Muse just stole the AI spotlight from OpenAI and Anthropic](https://frontiernewswire.com/s/metas-muse-just-stole-the-ai-spotlight-from-openai-and-anthropic-522d2837) (Sep 25, 2026)
- [Meta’s AI Tamagotchi bet is…working?](https://frontiernewswire.com/s/metas-ai-tamagotchi-bet-is-working-d53077e2) (Sep 25, 2026)

## Related

- [Anthropic](https://frontiernewswire.com/companies/anthropic) (Company)
- [Meta](https://frontiernewswire.com/companies/meta) (Company)
- [OpenAI](https://frontiernewswire.com/companies/openai) (Company)
- [Claude](https://frontiernewswire.com/models/claude) (Model)
- [Muse](https://frontiernewswire.com/models/muse) (Model)
- [GPT-6](https://frontiernewswire.com/models/gpt-6) (Model)
- [ChatGPT](https://frontiernewswire.com/models/chatgpt) (Model)
- [Muse Wonder Full](https://frontiernewswire.com/models/muse-wonder-full) (Model)

---

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