GPT: OpenAI chats
Text models2 min read
OpenAI's text models. Strong at step-by-step reasoning and at tasks where you need the path to the answer, not just the answer.
Open in Studio: GPT 5.5 · GPT 5.6 Sol · GPT 5.6 Luna · GPT 5.6 Terra · GPT 5.4 · GPT 5.2
- The model-name button — click to open the list.
- Every version of the family with its price; the tick marks the current one.
Versions and prices
The price is per answer, regardless of length.
| Version | Price | When to use |
|---|---|---|
| GPT 5.6 Sol / Luna / Terra | 4 cr. | New generation, three characters to choose from |
| GPT 5.5 | 8 cr. | Complex multi-step tasks |
| GPT 5.4 | 3 cr. | Everyday tasks |
| GPT 5.2 | 3 cr. | Multimodal: understands images as input |
| GPT 5.1–5.4 Codex | 4–6 cr. | Specialised in code |
What Sol, Luna and Terra are
Three variants of the same 5.6 generation with different answer characters. They cost the same — try all three on your task and keep the tone you like.
When to pick GPT
- "Think it through" tasks: calculations, logic, planning.
- Code — the Codex versions are built for it.
- Image analysis — GPT 5.2 accepts images.
How to use it
Attach an image with the paperclip in the input field. Switch versions with the model-name button inside the chat.