Intelligence Index
0146.1
> 93% OF MODELS
OpenAI
GPT-5.6 Luna
Updated: July 2026
GPT-5.6 Luna is a fast, cost-efficient model in OpenAI's GPT-5.6 series. It is suited for high-volume, latency-sensitive tasks such as chat, classification, and lightweight agentic workflows, providing capable reasoning for...
Specifications
- Context
- 1M
- Input
- $1/M
- Output
- $6/M
Capabilities
VISIONTEXTWEBCODINGTHINKINGWRITING
Similarly Priced Models
| Model | Provider | Context | Input Price | Output Price |
|---|---|---|---|---|
| GPT-5.6 Luna Pro | OpenAI | 1M | $1/M | $6/M |
| Grok Build 0.1 | xAI | 256K | $1/M | $2/M |
| MiMo V2.5 Pro |  Xiaomi | 1M | $1/M | $3/M |
| Claude Haiku 4.5 | Anthropic | 200K | $1/M | $5/M |
| GPT-3.5 Turbo (older v0613) | OpenAI | 4K | $1/M | $2/M |
Performance Metrics
Coding Index
0263.3
> 88% OF MODELS
Agentic Index
0340.1
> 89% OF MODELS
Average Response Performance
- Output Speed
- 244.5 tok/s
- Time To First Token
- 4.1s
- Time To First Answer Token
- 4.1s
- End To End Response Time
- 6.15s
DATA SOURCE: Artificial Analysis