OpenAI
GPT-6 Luna
OpenAI's low-cost GPT-6 tier for high-volume tasks such as extraction, summarization and routing, with a 1.05M-token context window.
Our editorial assessment, based on the public sources listed below. Last reviewed .
- Overall rank
- #22
- Tier
- A
- Score
- 84.1
- Main category
- Chat
Strengths
- Priced at $0.10 input / $0.50 output per 1M tokens, half of GPT-5.6 Luna's rate
- Reasoning effort adjustable from none to max on one model ID
- Supports web search, file search, structured outputs and function calling
Considerations
- Lower capability ceiling than Sol and Astra on complex, long-horizon work
- Independent composite indexes place it below Claude Haiku 5.5 at its highest effort setting
Price
API $0.10 input / $0.50 output per 1M tokens ($0.01 cached input)
Shown for reference — price is not part of the score.
Score breakdown
- Performance
- 83.0
- 55% of score
- Reputation
- 82.0
- 35% of score
- Recency
- 97.0
- 10% of score
The overall score combines these sub-scores using the weights shown. How we score →
Verification status
Each field carries its own re-verification date. Amber means older than 90 days — treat those figures as stale until re-checked.
Checked against the sources listed below.
Sources
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