---
type: "Evidence Item"
title: "Evaluating chain-of-thought monitorability"
description: "OpenAI introduces a new framework and evaluation suite for chain-of-thought monitorability, covering 13 evaluations across 24 environments. Our findings show that monitoring a."
resource: "https://openai.com/index/evaluating-chain-of-thought-monitorability"
tags: ["appendix-iii", "vendor", "openai"]
timestamp: "2025-12-18"
category: "vendor"
publisher: "OpenAI"
cope_score: 48
confidence: 0.9
---

# Evaluating chain-of-thought monitorability

# Claim

OpenAI introduces a new framework and evaluation suite for chain-of-thought monitorability, covering 13 evaluations across 24 environments. Our findings show that monitoring a model’s internal reasoning is far more effective than monitoring outputs alone, offering a promising path toward scalable control as AI systems grow more capable.

# Relevance

Appendix III, section two: vendor threshold and platform capability evidence

# Oracle Verdict

This is a low-signal vendor radar item. Keep it as context only unless a later benchmark, deployment, procurement change, or labour-market datapoint turns it into direct Appendix III evidence.

# Metadata

* Publisher: OpenAI
* Category: vendor
* Sector: Enterprise operations
* Capability: Vendor platform capability signal
* Cope score: 48
* Confidence: 0.9

# Related Concepts

* [Live evidence index](index.md)
* [Thesis](../thesis.md)

# Citations

[1] [Evaluating chain-of-thought monitorability](https://openai.com/index/evaluating-chain-of-thought-monitorability)