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Reasoning cost on ARC-AGI-1 falls 390x in a year

development2025-12-12

Claim

GPT-5.2 Thinking passed 90% on ARC-AGI-1 at $11.64 per task, a 390x fall in the price of reasoning within a year.

Reported metric: $11.64/task, 390x deflation

Reporting date: 2025-12-12 (not necessarily the event date)

Sources

Attribution and reporting linked by this record; links do not imply independent verification.

Welcome to December 12, 2025 (theinnermostloop.substack.com)

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ARC-AGI-1

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Welcome to December 12, 2025

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OpenAI

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Reasoning cost on ARC-AGI-1 falls 390x in a year
Innermost Loop KB — secondary record
Reporting date: 2025-12-12
KB permalink: https://nicholsn.github.io/innermost-loop-kb/developments/2025-12-12-arc-agi-cost-deflation
Claim: GPT-5.2 Thinking passed 90% on ARC-AGI-1 at $11.64 per task, a 390x fall in the price of reasoning within a year.
Attributed sources:
- Welcome to December 12, 2025 — https://theinnermostloop.substack.com/p/welcome-to-december-12-2025
This citation does not imply independent verification of linked-source claims.

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