OpenAI: o1-mini
o1-mini is a previous cheap o1 reasoning snapshot, not the 2026 reasoning default. The same card says use the newer reasoning models instead, and marks o1-mini-2024-09-12 deprecated. The models index now starts at GPT-5.6 Sol.
Compare o1-preview if you wanted the leftover expensive preview twin, GPT-5.6 Sol if you wanted the live start-here model, and GPT-4o if you wanted the leftover omni snapshot.
Key Features
- Still listed at $1.10 / $4.40: Quote the card, not leftover "faster and cheaper" without a number.
- Dated twin is deprecated:
o1-mini-2024-09-12. - Not GPT-5.6: Live start is Sol / Terra / Luna.
Use Cases
- People with an o1-mini bookmark who need the catalog corrected.
- People who were about to keep o1-mini as the 2026 cheap reasoning default.
Limitation: We did not re-run leftover coding or math crowns.
Pricing
o1-mini card on 2026-08-18.
| Piece | Price | Notes |
|---|---|---|
| o1-mini | $1.10 / $4.40 per 1M | Cached input $0.55. Still listed. |
| o1-mini-2024-09-12 | Deprecated | Same card. |
| Live start | GPT-5.6 Sol $5 / $30 | gpt-5.6. |
If a leftover blog still calls o1-mini the current cheap reasoning default, treat the models index as the correction.
Getting Started
- Open the o1-mini card and note $1.10 / $4.40.
- Confirm GPT-5.6 Sol if you wanted the live reasoning/coding start.
- Confirm o1-preview if you wanted the leftover $15 / $60 preview.
- Do not paste "current cheap o1" into a 2026 deck.
Frequently Asked Questions
Is o1-mini gone?
No. The card is still listed. The dated snapshot is deprecated, and docs recommend newer reasoning.
Same as o1-preview?
No. Preview older copy mixed the two. Preview is the expensive research preview.
Same as GPT-5.6 Luna?
No. Luna is a live cheap GPT-5.6 row. o1-mini is a leftover o1 alias.
Alternatives
- GPT-5.6 Sol: Live OpenAI frontier.
- o1-preview: Leftover expensive o1 preview.
- GPT-4o: Leftover omni snapshot at $2.50 / $10.
Tips
- Quote $1.10 / $4.40 from the live card.
- Call o1-mini previous, not the 2026 reasoning default.
- Confirm GPT-5.6 if you wanted a current start-here model.
Conclusion
o1-mini is a still-listed previous cheap reasoning snapshot at $1.10 / $4.40, not the 2026 default. Start at the o1-mini card, then decide whether GPT-5.6 Sol already covers the path you need.
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