October 21, 2026

Devin Fusion: Opus 5.5 and GPT-6 Luna combo scores 68 points and costs 31% less per task than Claude Code

The combo scored 68.1 points on the Artificial Analysis index, 2 points above Claude Code running Opus 5.5 alone. It costs $9.01 per task versus $13.04, but it does not take first place: Claude Code on Sonnet 5.5 scored 68.4.

Source

@artificialanlys · X · x.com ↗

who it's about

Claude Code →Cognition →AI agent →GPT-6 Luna →Claude Opus 5.5 →Claude Sonnet 5.5 →Anthropic →OpenAI →

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News

October 21, 2026

Devin Fusion: Opus 5.5 and GPT-6 Luna combo scores 68 points and costs 31% less per task than Claude Code

The combo scored 68.1 points on the Artificial Analysis index, 2 points above Claude Code running Opus 5.5 alone. It costs $9.01 per task versus $13.04, but it does not take first place: Claude Code on Sonnet 5.5 scored 68.4.

Source

@artificialanlys · X · x.com ↗

who it's about

Claude Code →Cognition →AI agent →GPT-6 Luna →Claude Opus 5.5 →Claude Sonnet 5.5 →Anthropic →OpenAI →

about the same entities

Release
Locked chats in ChatGPT: PIN or Face ID keeps chats away from anyone with your phoneOctober 21
Release
Vercel's coding agents keep working after a crash and run for hours, days, or monthsOctober 21
News
Anthropic is short on cloud capacity, and AWS, Google and Microsoft increasingly see it as a rivalOctober 21

All news

One email a week - only what changes how you work. Subscribe