---
title: "Same Tuesday: Anthropic Opus 5.5 (~40% cheaper; AA 58) + OpenAI GPT-6 Sol/Luna (−50% vs 5.6 promo)."
canonical: https://archive2050.xyz/archives/20260923-01-they-paced-the-frontier-then-they-priced-it/
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# Same Tuesday: Anthropic Opus 5.5 (~40% cheaper; AA 58) + OpenAI GPT-6 Sol/Luna (−50% vs 5.6 promo).

Canonical: https://archive2050.xyz/archives/20260923-01-they-paced-the-frontier-then-they-priced-it/
Archive: #20260923-01
Date: 2026-09-23
Stratum: protocol
Field note on X: https://x.com/Archive2050/status/2102575344700039221

Same Tuesday: Anthropic Opus 5.5 (~40% cheaper; AA 58) + OpenAI GPT-6 Sol/Luna (−50% vs 5.6 promo). https://t.co/EkQ3fj4U5V

They paced the frontier. Then they priced it.

Same Tuesday: Anthropic Opus 5.5 (~40% cheaper; AA 58) + OpenAI GPT-6 Sol/Luna (−50% vs 5.6 promo). https://t.co/EkQ3fj4U5V

## Sidewalk note

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## Field note

Fable-level performance under an Opus nameplate, priced for the discount era. Same Tuesday as the rival's cheaper Sol and Luna. Pacing as liturgy; cost as the soft stratum. (provisional)