18th October 2025
TIL
Exploring OpenAI's deep research API model o4-mini-deep-research
— I was reviewing some older PRs and landed [this one](https://github.com/simonw/llm-prices/pull/9) by Manuel Solorzano adding pricing for [o4-mini-deep-research](https://platform.openai.com/docs/models/o4-mini-deep-research) and [o3-deep-research](https://platform.openai.com/docs/models/o3-deep-research) to my [llm-prices.com](https://www.llm-prices.com/) site. I realized I hadn't tried those models yet so I decided to give one of them a go.
Recent articles
- Notes on the xAI/Anthropic data center deal - 7th May 2026
- Live blog: Code w/ Claude 2026 - 6th May 2026
- Vibe coding and agentic engineering are getting closer than I'd like - 6th May 2026