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GPT-4o mini

Model ● Covered in 4 stories + Follow

GPT-4o mini is a small language model from OpenAI that has been integrated into several applications recently. It is being used by Mercari to power AI-assisted product listing generation for sellers, by AlignEval as a cost-effective option for automated LLM evaluation workflows, and was previously the default model in the LLM CLI tool before being replaced by GPT-5.6 Luna in version 0.32rc2.

Updated 6 August 2026

Specifications

No specifications recorded yet.

Latest developments

llm 0.32rc2 Simon Willison's Weblog · 1 month ago · 30
Mistral Small 3.1 Mistral AI · 1 year ago · 36
Supporting sellers with enhanced product listings OpenAI · 1 year ago · 36
AlignEval: Building an App to Make Evals Easy, Fun, and Automated Eugene Yan · 1 year ago · 29

Timeline

Month Quarter Year

2026

OpenAI releases GPT-5.6 model family with efficiency improvements and significant price reductions Model release

2025

2024

Relationships

Products & technology

  • OpenAI develops this model · 3 sources
  • AlignEval integrated with this model · 1 source
  • Mercari integrated with this model · 1 source
  • Mercari deploys this model · 1 source

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