---
format: "aidr-story-markdown/v1"
id: "22ba6deb6bea7b3fc79dc7b826b84a2f5276d393799ca83e5d8f9e1b78ea7681"
canonical_url: "https://aidr.today/22ba6deb?lang=en"
title: "LWiAI Podcast #258 - Opus 5.5, Sol and Luna, Muse, DeepSeek-V4.1-Flash, Xi"
lang: "en"
requested_lang: "en"
available_langs: ["en","vi"]
translation_fallback: null
fallback_fields: []
published_at: "2026-10-03T07:32:03.000Z"
category: "Models"
topics: ["anthropic","openai","llm","fine-tuning","benchmark"]
source_urls: ["https://lastweekin.ai/p/lwiai-podcast-258-opus-55-sol-and"]
summary: "(Belated post :/ ) Anthropic releases Opus 5.5 with lower prices and Fable-level performance, OpenAI launches GPT-6 Sol and Luna, boasting lower cost and fewer mistakes"
---

# LWiAI Podcast \#258 \- Opus 5\.5, Sol and Luna, Muse, DeepSeek\-V4\.1\-Flash, Xi

> [Open the canonical story](<https://aidr.today/22ba6deb?lang=en>)

**Published:** 2026-10-03T07:32:03.000Z
**Category:** Models
**Topics:** anthropic, openai, llm, fine\-tuning, benchmark

## Summary

\(Belated post :/ \) Anthropic releases Opus 5\.5 with lower prices and Fable\-level performance, OpenAI launches GPT\-6 Sol and Luna, boasting lower cost and fewer mistakes

## Sources

- [Story source](<https://lastweekin.ai/p/lwiai-podcast-258-opus-55-sol-and>)