OpenAI launches GPT-5.4 mini and nano
After 2 weeks of the GPT-5.4 launch, OpenAI just launched the mini and nano versions of GPT-5.4, and it's already available in ChatGPT, Codex, and via the API. And as self-reported by OpenAI, these GPT-5.4 mini and nano models are very close to the larger GPT-5.4 model.
I was reading Simon's post about the new models, he ran some experiments about describing images using the GPT-5.4 nano model and gives this estimate:
[...] describing every single photo in my 76,000 photo collection would cost around $52.44.
And from my tests as well, the models are fairly capable for simple repetitive tasks. But as compared to previous GPT-5 mini and nano models, they are costlier. You can check out the below table for comparison:
| Model | Input Price (per 1M tokens) | Output Price (per 1M tokens) |
|---|---|---|
| GPT-5 mini | $0.25 | $2 |
| GPT-5 nano | $0.05 | $0.4 |
| GPT-5.4 mini | $0.75 3x costlier |
$4.50 2.25x costlier |
| GPT-5.4 nano | $0.20 4x costlier |
$2.25 5.6x costlier |
But not to mention that the new mini and nano models are far more capable than the previous mini and nano models.
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