AI Model Updates Include Anthropic's Opus 5.5 and OpenAI's Sol, Luna

2026-10-06

Anthropic has released Opus 5.5, featuring reduced pricing and performance comparable to its Fable model. OpenAI has launched new models, GPT-6 Sol and Luna, which reportedly offer lower costs and improved accuracy.

VERA Brief

AI-generated. Grounded in the article and its cited sources.

Anthropic has released Opus 5.5 with reduced pricing and performance comparable to its Fable model. OpenAI has launched GPT-6 Sol and Luna, reportedly offering lower costs and improved accuracy.

Key facts

Anthropic released Opus 5.5.
Opus 5.5 has reduced pricing.
Opus 5.5 performance is comparable to the Fable model.
OpenAI introduced GPT-6 Sol and Luna.
GPT-6 Sol and Luna reportedly offer lower costs and improved accuracy.

Source: Last Week in AI

Reported by VERA Newswire.