OpenAI: o1-mini

o1-mini is a previous cheap o1 reasoning snapshot, not the 2026 reasoning default. Rechecked 2026-08-18: the o1-mini card still lists it as a small alternative to o1 at $1.10 input / $4.40 output per 1M tokens (cached input $0.55). 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. Drop leftover "enhancement of o1 / current cheap reasoning crown."

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.
• Docs already recommend newer reasoning: The o1-mini page we opened points away from itself.
• 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 comparing leftover $1.10 o1-mini vs live GPT-5.6 rows.
• 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.

If a leftover blog still calls o1-mini the current cheap reasoning default, treat the models index as the correction.

Getting Started

1. Open the o1-mini card and note $1.10 / $4.40.
2. Recheck GPT-5.6 Sol if you wanted the live reasoning/coding start.
3. Recheck o1-preview if you wanted the leftover $15 / $60 preview.
4. 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 leftover 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

1. Quote $1.10 / $4.40 from the live card.
2. Call o1-mini previous, not the 2026 reasoning default.
3. Recheck 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.