GPT-5.6 Luna Pro
openai/gpt-5.6-luna-pro
GPT-5.6 Luna Pro is the same underlying model as GPT-5.6 Luna, served with reasoning.mode set to pro for higher-quality responses on complex tasks.
Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode
Modalities
File
Image
Text
In / Out price
$0.20 / $1.20 per 1M
Context
1.05M · 128K out
Released
Jul 9, 2026
Providers
Live list prices and uptime across 5 providers serving this model.
| Provider | Input /M | Output /M | Cache read /M | Context | Max output | Uptime 24h |
|---|---|---|---|---|---|---|
| OpenAI | $0.10 | $0.60 | $0.01 | 1.05M | 128K | 99.99% |
| Azure | $0.20 | $1.20 | $0.02 | 1.05M | 128K | 94.60% |
| OpenAI | $0.20 | $1.20 | $0.02 | 1.05M | 128K | 99.96% |
| Azure | $0.22 | $1.32 | $0.022 | 1.05M | 128K | 99.96% |
| OpenAI | $0.40 | $2.40 | $0.04 | 1.05M | 128K | 100.00% |
No implicit prompt caching; cache reads require explicit cache control.
Capabilities
Tool calling
Reasoning
Moderated
Include reasoning
Max completion tokens
Max tokens
Reasoning effort
Response format
Seed
Structured outputs
Tool choice
Pricing detail
- Input
- $0.20
- Output
- $1.20
- Cache read
- $0.02
- Cache write
- $0.25
USD per 1M tokens.