GPT-5.6 Luna Pro
Newopenai/gpt-5.6-luna-pro-20260709
OpenAI's GPT-5.6 Luna Pro processes file, image, and text inputs and generates text output. It supports tool integration and reasoning capabilities, with a context window of 1,050,000 tokens. Pricing is $1 per million input tokens and $6 per million output tokens; the model’s weights are not publicly released.
Tracked, but not yet independently ranked
This model is in the catalog, but we do not yet have enough public benchmark data to place it confidently in quality-focused recommendations. It may still appear in price-based recommendations.
- tool use
- structured outputs
- reasoning
At a glance
Specifications
What the API gives you
- Context window
- 1.1M tokens
- Max output
- 128K tokens
- Input price
- $1 / 1M tokens
- Output price
- $6 / 1M tokens
- Cache read
- $0.100 / 1M tokens
- Modalities
- file, image, text → text
- Knowledge cutoff
- Feb 16, 2026
- Released
- Jul 9, 2026
Recommendation coverage
Where this model appears
Not currently included in a published recommendation. This means the available task-specific evidence did not support a ranking yet—not that the model was reviewed and rejected.
Benchmarks
No independent benchmark results are linked to this model yet. We keep it visible while withholding quality claims until usable results arrive.
Catalog data via OpenRouter and models.dev. Last checked within the past 6 hours.