GPT-6 Luna
openai/gpt-6-luna
GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, positioned below GPT-6 Sol. It is suited for high-volume and latency-sensitive workloads such as chat, classification, and lightweight agentic...
Modalities
File
Image
Text
In / Out price
$0.10 / $0.50 per 1M
Context
1.05M · 128K out
Released
Sep 22, 2026
Providers
Live list prices and uptime across 7 providers serving this model.
| Provider | Input /M | Output /M | Cache read /M | Context | Max output | Uptime 24h |
|---|---|---|---|---|---|---|
| OpenAI | $0.05 | $0.25 | $0.005 | 1.05M | 128K | 99.97% |
| OpenAI | $0.10 | $0.50 | $0.01 | 1.05M | 128K | 99.81% |
| Azure | $0.10 | $0.50 | $0.01 | 1.05M | 128K | 99.99% |
| Azure | $0.11 | $0.55 | $0.011 | 1.05M | 128K | 98.26% |
| Azure | $0.11 | $0.55 | $0.011 | 1.05M | 128K | 99.99% |
| Amazon Bedrock | $0.11 | $0.55 | $0.011 | 1.05M | 128K | 8.74% |
| OpenAI | $0.20 | $1.00 | $0.02 | 1.05M | 128K | 99.80% |
Implicit prompt caching available — repeated context bills at the cache read rate.
Capabilities
Tool calling
Reasoning
Moderated
Include reasoning
Max completion tokens
Max tokens
Reasoning effort
Response format
Seed
Structured outputs
Tool choice
Pricing detail
- Input
- $0.10
- Output
- $0.50
- Cache read
- $0.01
- Cache write
- $0.125
USD per 1M tokens.