OpenAI releases GPT-4o mini
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GPT-4o mini released — 82% on MMLU (company-reported), $0.15 input and $0.60 output per 1M tokens, 128K context
Why it matters
OpenAI said it is more than 60% cheaper than GPT-3.5 Turbo; it replaced GPT-3.5 for ChatGPT Free, Plus and Team users
Source — Primary sources first; secondary reports are labelled “Press”
Officialopenai.comhttps://openai.com/index/gpt-4o-mini-advancing-cost-efficient-intelligence/Added in Week 41, 2026 · See that week
On the map — ⑥ Reasoning Models line
- Previous stopClaude 3.5 Sonnet
- This recordGPT-4o mini
- Next stopo1-preview
In the model family tree — GPT family · 23 versions
- Earlier versionGPT-4o
- This recordGPT-4o mini
- Later versionGPT-4.5