OpenAI Launches Cheaper GPT-6 Models With Half the Developer Pricing
The company released GPT-6 Sol and Luna, offering 50% lower API costs and improved prompt caching for long-running agents.
Headline and summary written by an AI model from the linked articles; not reviewed by a person. How this was made
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The odds
All 3 sources published before price tracking began
Price data
| Time | Chance of yes |
|---|---|
| now | 0% |
| 23 Sept, 12:14 UTC | 0% |
The story so far
2 publishers have covered this in 3 articles since 23 Sept 2026. marktechpost.com published first, on 23 September at 05:18 UTC; Quartz followed 6h 02m later. The most recent article, from Quartz, appeared on 23 September at 11:20 UTC.
Outlets reporting it: marktechpost.com, Quartz.
3 prediction markets price this story:
- Will the next OpenAI GPT Luna model be released on September 24, 2026? — resolved “No” on 23 Sept 2026.
- $4/MTok or below — the market puts it at 47%, with $179 traded in the last 24 hours, closing 1 Apr 2027. The market resolves to Yes if the input token price for OpenAI GPT 5.5 on its official API pricing page is at or below $4 in 2026. It resolves to No if that specific price remains above $4 during that year. Readers often mistake the linked story about GPT-6 pricing as the relevant metric, but only the GPT 5.5 input token price counts.
- Next OpenAI GPT Luna (5.7+) released by September 30, 2026? — resolved “Yes” on 23 Sept 2026.
Odds are the market's probability that the outcome happens, updated every few minutes. They are information about what traders expect, not a forecast we make and not investment advice.
How it unfolded
Every source in the order it published.
Sources
Every article we clustered into this story. Headlines link to the publisher.
Related prediction markets
Linked by software because they are about the same subject. Most ask a different question from the one this story reports, so read each market's own question. How often the link is right
- Resolved Will the next OpenAI GPT Luna model be released on September 24, 2026? No 45d ago
Wrong market?
- Kalshi $4/MTok or below 47% +30
Does the market have this right?
Wrong market?
- Resolved Next OpenAI GPT Luna (5.7+) released by September 30, 2026? Yes 45d ago
The market favoured Yes at 90% a day out, and it won. How often it's right
Wrong market?
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In this story
- OpenAI
- GPT-6 Sol
- GPT-6 Luna