# AI News Digest - 2026-01-17

1. OpenAI said it would soon test ads in ChatGPT, reversing earlier objections from CEO Sam Altman.

2. OpenAI launched the "Open Responses" project to standardize API response formats and sought to make its format the industry standard.

3. Cloudflare acquired British startup Human Native to develop a new payment model for AI training data.

4. OpenAI's GPT-5.2 Pro was reported by mathematician Terence Tao to have solved an open Erdős problem largely on its own; Tao described the result as a milestone while warning it reflected computational speed more than problem difficulty.

5. Anthropic opened its Claude Cowork desktop agent to all Pro subscribers after initially launching the feature exclusively for Max users.

# References

1. [https://the-decoder.com/openai-will-soon-test-ads-in-chatgpt-despite-ceo-sam-altman-once-calling-the-idea-dystopian/](https://the-decoder.com/openai-will-soon-test-ads-in-chatgpt-despite-ceo-sam-altman-once-calling-the-idea-dystopian/)

[OpenAI will soon test ads in ChatGPT despite CEO Sam Altman once calling the idea dystopian](https://the-decoder.com/openai-will-soon-test-ads-in-chatgpt-despite-ceo-sam-altman-once-calling-the-idea-dystopian/)

1. [https://the-decoder.com/openai-wants-its-api-format-to-become-the-industry-standard/](https://the-decoder.com/openai-wants-its-api-format-to-become-the-industry-standard/)

[OpenAI wants its API format to become the industry standard](https://the-decoder.com/openai-wants-its-api-format-to-become-the-industry-standard/)

1. [https://the-decoder.com/cloudflare-acquires-human-native-to-build-new-payment-model-for-ai-training-data/](https://the-decoder.com/cloudflare-acquires-human-native-to-build-new-payment-model-for-ai-training-data/)

[Cloudflare acquires Human Native to build new payment model for AI training data](https://the-decoder.com/cloudflare-acquires-human-native-to-build-new-payment-model-for-ai-training-data/)

1. [https://the-decoder.com/terence-tao-says-gpt-5-2-pro-cracked-an-erdos-problem-but-warns-the-win-says-more-about-speed-than-difficulty/](https://the-decoder.com/terence-tao-says-gpt-5-2-pro-cracked-an-erdos-problem-but-warns-the-win-says-more-about-speed-than-difficulty/)

[Terence Tao says GPT-5.2 Pro cracked an Erdős problem, but warns the win says more about speed than difficulty](https://the-decoder.com/terence-tao-says-gpt-5-2-pro-cracked-an-erdos-problem-but-warns-the-win-says-more-about-speed-than-difficulty/)

1. [https://the-decoder.com/anthropic-opens-claude-cowork-ai-agent-to-all-pro-subscribers/](https://the-decoder.com/anthropic-opens-claude-cowork-ai-agent-to-all-pro-subscribers/)

[Anthropic opens Claude Cowork AI agent to all Pro subscribers](https://the-decoder.com/anthropic-opens-claude-cowork-ai-agent-to-all-pro-subscribers/)

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