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FrontierThe story, in brief

Anthropic and OpenAI roll out cheaper models in first release since call for slowdown

GPT-6 Sol, GPT-6 Luna, Claude Opus 5.5 — both labs ship cheaper models 48 hours apart, signaling a pivot from scale to efficiency.

Reporting by CNBC Technology 1 min brief
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The KeyNews take

Why it matters

Two frontier labs released new model variants simultaneously, marking a shift toward cost-optimized inference and smaller model capability tiers. Practitioners deploying at scale will immediately recalculate their cost-per-token economics; enthusiasts tracking the lab race see a coordinated move away from pure capability maximalism toward market differentiation on efficiency.

The key facts

6 to know

  1. OpenAI released GPT-6 Sol and GPT-6 Luna

  2. Anthropic released Claude Opus 5.5

  3. Both releases occurred within 48 hours of each other

  4. Focus on cheaper/cost-optimized models

  5. Timing follows calls for AI development slowdown

  6. Published September 22, 2026

Go to the source

CNBC Technologycnbc.com

Publisher excerpt: OpenAI introduced GPT-6 Sol and GPT-6 Luna. Anthropic unveiled Claude Opus 5.5.
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