Unverified50% confidenceFactExact time
The free version of OpenAI's ChatGPT uses the Luna 5.6 model.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/28/2026
First Seen
Valid until: 12/27/2026
Sources
Related Entities
Related Claims
UnverifiedDeepSeek V4 Pro and Kimi 5.1 operated in Solid mode (autonomous completion of the entire workflow without human intervention), while ChatGPT 5.4 and Gemini 3.1 operated in standard interactive mode67% similarUnverifiedLuna is a new billing model tier based on OpenAI models launched by Cursor in mid-2025, representing Cursor's transition from fixed subscription pricing to usage-based billing.66% similarUnverifiedGoogle released Gemini 3.0 Pro, and OpenAI promptly launched GPT-5.2.62% similar
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