GPT 5.6 Luna Pro
GPT-5.6 Luna with Pro reasoning mode. Pro mode performs more model work for difficult tasks; reasoning effort remains independently configurable and defaults to medium.
- Reasoning
- Vision
- Native PDF input
- Tool Calling
- Structured Output
Added Jul 9, 2026
Pricing
Auto routing · per 1M tokens- Input
- $0.20
- Output
- $1.20
- Cache read
- $0.02
Specifications
- Context window
- 1.1M
- Max output
- 128K
- Avg output (7d)
- 1.4K tokens
- Longer than 82% of models
Benchmarks
No public benchmark scores for this model yet.
Providers
Auto routing is available for this model. Explicit provider selection is not available.
| Cache write /M | ||||||
|---|---|---|---|---|---|---|
 Recommended | $0.20 | $1.20 | $0.02 | $0.25 | N/A | N/A |
| >272k | $0.40 | $1.80 | $0.04 | $0.50 |
